Skip to main content

BRIEF RESEARCH REPORT article

Front. Glob. Womens Health, 13 June 2024
Sec. Aging in Women
This article is part of the Research Topic Women’s Brain Health and Aging through the Lifespan View all 11 articles

Predictors of cognitive change in cognitively healthy older women in Panama: the PARI-HD study

\r\nDiana C. Oviedo,,Diana C. Oviedo1,2,3Adam E. Tratner,Adam E. Tratner3,4Sofía Rodríguez-AraaSofía Rodríguez-Araña1Alcibiades E. Villarreal,Alcibiades E. Villarreal1,3Giselle Rangel,Giselle Rangel1,3María B. Carreira,María B. Carreira1,3Gabrielle B. Britton,
 on behalf of the Panama Aging Research Initiative-Health Disparities (PARI-HD) Study\r\nGabrielle B. Britton1,3* on behalf of the Panama Aging Research Initiative-Health Disparities (PARI-HD) Study
  • 1Centro de Neurociencias y Unidad de Investigación Clínica, Institiuto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), Panama City, Panamá
  • 2Escuela de Psicología, Universidad Santa María la Antigua (USMA), Panama City, Panamá
  • 3Sistema Nacional de Investigación (SNI) SENACYT, Panama City, Panamá
  • 4Florida State University, Panama City, Panamá

Background: Evidence suggests that a combination of biological and social factors influence risk of dementia differently for women and men. In healthy older women, several factors may contribute to changes in cognition.

Objective: Describe the characteristics associated with variation in cognition in a sample of cognitively healthy older Panamanian women.

Methods: The study includes cross-sectional analyses of cognitive domains at baseline (n = 357) and 17-month (SD = 2.0) follow-up (n = 200) for women aged 60 years and older enrolled in the Panama Aging Research Initiative-Health Disparities (PARI-HD) study. Instruments included clinical questionnaires, physiological measures, and a neuropsychological test battery assessing global cognition and seven cognitive domains. Multiple regression analyses examined the associations between demographic and clinical characteristics and cognition at baseline. Repeated measures analyses were used to investigate changes in cognition from baseline to follow-up.

Results: On average, participants were 68.6 years of age (SD = 5.9) with 16.1 years of education (SD = 4.7). Age, income, and education showed robust associations with baseline cognition. Subjective cognitive impairment was associated with lower performance in global cognition, verbal learning, and memory domains. Only performance in the attention domain decreased at follow-up, and subjective health state and depressive symptoms significantly predicted the change in attention.

Discussion: Our study findings contribute to the investigation of cognitive health in older Hispanic women and to the understanding of sociodemographic and health-related factors associated with cognitive decline and the progression to cognitive impairment and dementia.

1 Introduction

Population aging is occurring in all countries of the world, but with a more rapid rate of increase in low- and middle-income countries (LMIC) (1). Countries in the Latin American and Caribbean (LAC) region are experiencing one of the fastest rates of population aging (2, 3). Estimates show that by 2050, the number of adults over 60 years of age in the LAC region will double (1). An increase in the number of aging individuals is associated with a rise in mild cognitive impairment (MCI) and dementias such as Alzheimer's disease (AD). The prevalence of dementia in LAC has been estimated at 10% (4) analogous to more developed regions but with a more accelerated growth. Projections indicate that by 2050, the number of people living with dementia will increase by 449% (reaching 978,000 cases). In Central America, Panama is projected to have the 3rd highest percentage increase in dementia cases (273%) due to socioeconomic and health factors (5). Although Panama is classified as a middle-high income country, it is globally ranked as one of the most unequal nations in terms of wealth distribution and is the third most unequal country in the LAC region (6, 7). A large proportion of the population cannot access high quality public services, such as health care, education, and sanitation. Furthermore, Panama's public education and healthcare systems are constrained by limited funding, precarious infrastructure, and frequent shortages of workers. These factors are implicated in the high prevalence of chronic illnesses, such as hypertension, diabetes, and obesity, as well as health disparities across the population, given that many people do not receive timely and effective healthcare services or adequate health education (6, 8, 9).

Aging is a normal process involving physiological and psychological changes. Research has shown that although most cognitive functions decline with age, these can decrease at different rates (10). Cognitive domains such as episodic memory, processing speed, executive function, and verbal fluency tend to decline more rapidly and at an earlier age (1113), whereas other aspects of cognition such as vocabulary and general knowledge, remain more stable and can even improve over time (14, 15). Moreover, there is interindividual variability regarding cognitive trajectories and decline. Some individuals exhibit high cognitive performance, comparable to younger adults, while others experience a steeper and more rapid decline, that could progress to cognitive impairment and dementia (14). Changes in cognition also vary between women and men. In dementia-free women, some studies reveal that cognition levels remain stable for longer periods of time relative to men (1618), in line with cross-sectional studies that suggest women perform better in some cognitive tasks than men (1820). Nonetheless, the overall estimated prevalence for dementia is higher for women than men (5), although sex differences in the incidence of dementia are less clear, and may vary across geographical regions (21, 22). These contradictory findings call for further research in women's cognitive health.

Evidence suggests that a combination of biological and social factors influence risk of dementia differently for women and men (23, 24). In healthy older women, several factors may contribute to changes in cognition. Longitudinal studies show that sociodemographic characteristics (e.g., age, and sex), socioeconomic status (e.g., education, income, employment), physical and mental health-related determinants (e.g., chronic illnesses, BMI, depression) and daily habits (e.g., sleeping, physical activity, and smoking) contribute to maintenance or decline of cognitive function (25, 26). Depression and stress in women are also notable risk factors associated with cognitive decline (27, 28). Several studies show that depression is associated with poorer cognitive functioning and faster cognitive decline over time, even for individuals with low to moderate symptoms (2933). In addition, some research suggests that cardiovascular risk factors (e.g., high systolic blood pressure, obesity) decrease cognitive function (3437). However, most research has been carried out in predominantly Caucasian populations, which limits the generalizability of the results to other populations (38). In LAC countries, where the prevalence of chronic vascular diseases is increasing (39) these risk factors are of special relevance.

Research on aging women is particularly limited in LAC countries. Some studies that include both men and women tend to overlook gender differences in their analyses, therefore limiting findings on women's cognitive health (4, 40). In Panama, women face unique economic, educational and health obstacles (41). Women perform twice as much domestic labor, earn lower wages, and are less likely to be employed full-time compared to men. This may stem, in part, from the fact that more than 80% of caregivers in Panama are women, which constrains women’s career prospects. Consequently, women are more likely to pursue informal and part-time employment, characterized by lower wages and job insecurity (42). Furthermore, many women experience barriers to accessing and completing education due to poverty, early pregnancies, and gender-based violence (43, 44). The Panama Aging Research Initiative- Health Disparities (PARI-HD) program has studied cohorts of older adults for over a decade, and established the first longitudinal aging study in the country as well as one of the few in the broader LAC region. In the present study, the main objective was to examine the characteristics associated with variation in cognition using a sample of cognitively healthy older Panamanian women assessed at two time points.

2 Methods

2.1 Participants and procedure

The study included women aged 60 years and older enrolled in the PARI-HD study, an ongoing community-based longitudinal study of the factors affecting cognitive aging in older adults in Panama. Participants were recruited from the community using convenience sampling. The research team used advertisements on social media platforms that included a description of the study objectives and inclusion criteria. The study was also divulged in public outreach events. Interested adults who met inclusion criteria were recruited. At baseline, participants were literate, dementia-free and community-dwelling, as per inclusion criteria, and enrolled after providing informed consent. The study protocol was approved by the Institutional Bioethics Committee of the Caja del Seguro Social (P-083-16). Participants underwent clinical interviews, physical and cognitive assessments. Data included in this manuscript were collected between October 2016 and March 2020. The first follow-up visit began April 2018. All in-person visits were suspended due to the COVID-19 pandemic. Here we include cross-sectional data for female participants at baseline (n = 357) and those who had complete evaluations at first follow-up (n = 200). The time elapsed between visits was 17 months (SD = 2.0).

2.2 Measures

2.2.1 Clinical interviews and instruments

Evaluations were conducted in Spanish by health professionals as well as medical, undergraduate, and graduate students trained by a multidisciplinary group of health specialists. A questionnaire based on the 15-item Subjective Memory Complaints Questionnaire (45) was used to assess subjective memory complaints. The European Quality of Life Health Questionnaire (EQ-5D-3l) (39, 46) was used to evaluate subjective health status. The measure includes a visual analogue scale where health is rated on a scale from 0 (worse imaginable health) to 100 (best imaginable health). Independence in instrumental (IADL) and basic (BADL) activities of daily living was measured with Lawton and Brody (47) and Katz Index (48), respectively. For both IADL and BADL higher scores indicate higher function and independence. The Spanish version of the 15-item Geriatric Depression Scale (GDS-15) (49) was used to screen for depressive symptoms.

Other measures included waist circumference, body mass index (BMI; kg/m2) and blood pressure. A cardiovascular risk (CVR) score (range 0–4) was calculated based on four common risk factors (50, 51): BMI with a cutoff score of less risk ≤30 kg/m or more risk >30 kg/m; blood pressure (systolic) with a cutoff of ≤140 mm Hg or >140 mm Hg; smoking (current or ever smoked) with a score of 0 (never smoked) or 1 (current/past smoker); and physical activity, which was measured through self-reported responses to the question: “Which of the following best describes your level of physical activity” and given the following options: (a) vigorous activity for at least 30 min 3 times a week; (b) moderate activity at least 3 times a week; and (c) rarely active, prefers sedentary activities (52). This item was scored positive if participants selected the last option.

2.2.2 Neuropsychological testing

The neuropsychological test battery included measures of global cognition and seven cognitive domains: (1) attention, (2) executive function, (3) verbal learning, (4) memory, (5) language, (6) visuospatial abilities and (7) processing speed. Test scores were converted to z scores and averaged for each of the cognitive domains. Global cognition was measured by the 30-item Spanish version of the Mini-Mental State Examination (MMSE) (53) adjusted for age and education. The attention domain comprised the Trail Making Test Form A (TMT A) (54), and direct and inverse digit span (55). Executive function was evaluated with the TMT Form B (54), Phonetic Verbal Fluency Test (56), and INECO Frontal Screening (57). To assess verbal learning, the Consortium to Establish a Registry for Alzheimer's Disease Word List Memory Task (CERAD) (58) and the immediate recall for the Logical Memory subtest from the Wechsler Memory Scale (59) were used. The memory domain was measured with the recall forms of CERAD (58) and the Wechsler Memory Scale subtest on Logical Memory (59). Language was assessed with Semantic and Phonetic Verbal fluency tests (56) and Boston Vocabulary Test (60). Visuospatial abilities were measured with Clock Drawing Test (CDT) (61) in both forms, copy and draw to the order. Lastly, the time taken to complete the TMT A (seconds) was used as a measure of processing speed.

2.2.3 Statistical analyses

Analyses were conducted using SPSS version 29. Descriptive analyses examined sample characteristics in relation to baseline and follow-up. Means and standard deviations were calculated for variables using a continuous scale of measurement, and frequencies and percentages were used to summarize categorical variables. Repeated measures analyses, McNemar's tests, or marginal homogeneity tests compared individuals at baseline and follow-up for each variable. A series of linear regressions explored the associations between demographic and clinical factors, and neuropsychological test scores for eight cognitive domains at baseline. Repeated measures analyses of covariance (ANCOVA) were used to investigate changes in cognition from baseline to follow-up. Eight simultaneous multiple regression analyses examined the associations between demographic and clinical characteristics and cognition at baseline. Cases with missing data were excluded from statistical analyses via listwise deletion.

3 Results

3.1 Descriptive analyses

Demographic and clinical characteristics are summarized in Table 1. At baseline, participants were 68.6 years of age (SD = 5.9) with 16.1 years of formal education (SD = 4.7). Most participants (60.1%) reported incomes in the upper quartile (M = 1,201–1,600 USD). Overall subjective health ratings were high (M = 86.3/100, SD = 12.6), although many participants reported subjective cognitive impairment (43.4%). BMI measurements (M = 27.3 kg/m2, SD = 4.9) indicated that many participants were overweight (40%) or obese (27%), and the most reported chronic illness was hypertension (51.5%). According to the Fried criteria (45) most participants were pre-frail (59.3%) and 9% were frail. The total number of chronic illnesses, medications, and the prevalence of subjective cognitive decline increased at follow-up. Moreover, performance declined in global cognition, learning, long-term memory, attention, and executive function from baseline to follow-up (see Table 2).

Table 1
www.frontiersin.org

Table 1. Demographic and clinical characteristics of study participants.

Table 2
www.frontiersin.org

Table 2. Composite scores of cognitive domains.

Independent samples t-tests comparing the 157 participants who did not complete the second interview with the 200 participants who completed both interviews revealed that those who did not return were, on average, older (M = 70.0 vs. 68.6 years old, p = .041) and had lower learning (M = −.34 vs. .27, p < .001), long-term memory (M = −.30 vs. .25, p = .004), attention (M = −.39 vs. .32, p < .001), and processing speed (M = 55.87 s vs. 45.26 s, p < .001) scores than those who completed the follow-up visit.

3.2 Multiple regression analyses

For each statistical model, cognitive domains were regressed on to age, educational attainment, income, subjective health state, diabetes diagnosis, CVR score, symptoms of geriatric depression, and subjective cognitive decline (see Table 3).

Table 3
www.frontiersin.org

Table 3. Multiple linear regression analysis by cognitive domain at time of first visit (n = 357).

3.3 Model 1: global cognition

The omnibus test was significant [F (8, 345) = 2.43, MSE = 1.88, R2 = 0.05, p = 0.015] and results showed an effect of income (β = .14, t = 2.40, p = .017) and subjective cognitive decline (β = −.13, t = −2.37, p = .018) on global cognition. Higher income was associated with higher global cognition scores, and individuals who reported subjective cognitive decline scored lower on global cognition.

3.4 Model 2: verbal learning

The omnibus test was significant [F (8, 344) = 11.75, MSE = 1.53, R2 = 0.22, p < 0.001] and results showed an effect of age (β = −.21, t = −4.20, p < .001), educational attainment (β = .18, t = 3.42, p < .001), income (β = .19, t = 3.60, p < .001), cardiovascular risk (β = .13, t = 2.62, p = .009), and subjective cognitive decline (β = −.11, t = −2.17, p = .031) on learning. Older age and subjective cognitive decline were associated with lower learning scores, whereas higher educational attainment, income, and cardiovascular risk were associated with higher scores on learning.

3.5 Model 3: long-term memory

The omnibus test was significant [F (8, 343) = 10.74, MSE = 1.59, R2 = 0.20, p < 0.001] and results showed an effect of age (β = −.23, t = −4.54, p < .001), educational attainment (β = .18, t = 3.41, p < .001), income (β = .18, t = 3.26, p < .001), and subjective cognitive decline (β = −.11, t = −2.17, p = .029) on long-term memory. Higher educational attainment and income were associated with higher long-term memory scores. Older age and subjective cognitive decline were associated with lower long-term memory scores.

3.6 Model 4: attention

The omnibus test was significant [F (8, 344) = 13.09, MSE = 1.45, R2 = 0.23, p < 0.001] and results showed an effect of age (β = −.19, t = −3.95, p < .001), educational attainment (β = .20, t = 3.83, p < .001), income (β = .21, t = 3.97, p < .001), and cardiovascular risk (β = .13, t = 2.75, p = .006) on attention. Older age was associated with lower attention scores. Higher educational attainment, income, and cardiovascular risk were associated with higher attention scores.

3.7 Model 5: executive function

The omnibus test was significant [F (8, 311) = 8.63, MSE = 1.89, R2 = 0.18, p < 0.001] and results showed an effect of age (β = −.23, t = −4.39, p < .001), educational attainment (β = .24, t = 4.31, p < .001), and income (β = .12, t = 2.16, p = .031) on executive function. Older age was associated with lower executive function scores, and higher educational attainment and income were associated with higher executive function scores.

3.8 Model 6: visuospatial abilities

The omnibus test was significant [F (8, 345) = 3.95, MSE = 1.65, R2 = 0.08, p < 0.001] and results showed an effect of age (β = −.13, t = −2.36, p = .019) and depression symptoms (β = −.20, t = −3.24, p < .001) on visuospatial abilities, such that older age and having more depression symptoms was associated with lower visuospatial scores.

3.9 Model 7: language

The omnibus test was significant [F (8, 345) = 8.82, MSE = 2.20, R2 = 0.17, p < 0.001] and results showed an effect of age (β = −.17, t = −3.37, p < .001), educational attainment (β = .21, t = 3.80, p < .001), and income (β = .14, t = 2.47, p = .014) on language. Older age was associated with lower language scores, while higher educational attainment and income were associated with higher language scores.

3.10 Model 8: processing speed

The omnibus test was significant [F (8, 344) = 11.34, MSE = 20.07, R2 = 0.21, p < 0.001] and results showed an effect of age (β = .19, t = 3.89, p < .001), educational attainment (β = −.21, t = −3.84, p < .001), income (β = −.16, t = −2.89, p = .004), and cardiovascular risk (β = −.12, t = −2.42, p = −.016) on processing speed. Years of education, income, and cardiovascular risk were associated with faster processing speed, and older age was associated with slower processing speed.

3.11 Repeated measures analyses of covariance

For global cognition and the seven cognitive domains, a repeated measures ANCOVA was conducted to assess changes in cognition from baseline to the follow-up while controlling for demographic and clinical factors. Age, educational attainment, income, subjective health state, diabetes diagnosis, cardiovascular risk, symptoms of geriatric depression, and subjective cognitive decline were entered as covariates.

The overall results revealed that only scores on the attention domain differed significantly between time points [F (1, 189) = 5.08, MSE = 3.12, η2 = 0.03, p = .025], and a post hoc analysis (p < .001) showed that attention scores decreased significantly from baseline (M = .34) to follow-up (M = .04). No significant differences were observed between visits for the remaining domains (all p-values > .05).

3.12 Exploratory multiple regression analysis

An exploratory regression analysis was performed to examine demographic and clinical factors at baseline that predict change in attention scores over time (see Table 4). The change score was created by computing the difference between the attention scores at first visit and second visit. Change in attention was then regressed on to age, educational attainment, income, subjective health state, diabetes diagnosis, cardiovascular risk, depression symptoms, and subjective cognitive decline.

Table 4
www.frontiersin.org

Table 4. Multiple linear regression analysis of the change in attention from baseline to follow-up (n = 198).

Results indicated a significant omnibus test [F (8, 189) = 2.41, MSE = 1.11, R2 = 0.09, p = 0.017] and showed a main effect of subjective health state (β = .27, t = 3.41, p < .001) and depression (β = .26, t = 3.30, p < .001) on the change in attention. Higher self-rated health and more geriatric depression symptoms at baseline were associated with greater changes in attention scores at follow-up.

4 Discussion

The main objective of this study was to examine the characteristics associated with variation in performance across cognitive domains in a sample of cognitively healthy older Panamanian women. We compared performance across seven cognitive domains at baseline and follow-up. First, a cross-sectional analysis was conducted to determine the health, clinical and social factors associated with different cognitive domains. Our cross-sectional analyses were consistent with studies on cognitive function in older women (10, 61). Older age was associated with worse performance across domains except global cognition and processing speed. Social determinants such as years of education and income were associated with most cognitive domains. Evidence shows that women experience social inequalities including lower income, lower educational attainment and limited stimulating activities that are related to diminished cognitive reserve and may explain worse cognitive outcomes (21, 23, 62). Research studies in other LAC countries reveal that education provides a larger cognitive reserve due to the cognitive stimulation and intellectual engagement (6365). Additionally, education is often associated with better access to resources and healthcare, which can also influence cognitive health (66, 67).

Moreover, depression was associated only with the visuospatial domain at baseline. Although the relationship between depression and attention is not clear, depression has been linked to several factors that can contribute to cognitive impairment (29, 68), including changes in brain structure, inflammation, and vascular risk factors such as diabetes, hypertension, and obesity (68). Performance in nonverbal tests, such as visuospatial tasks, tends to decrease more quickly in older adults diagnosed with depression (69). Older adults with depression experience more difficulty analyzing and discriminating visual stimuli, and show deficits in perceptual organization (70). Some research suggests that visuospatial deficits are useful to determine the progression of subjects to AD (71).

Counterintuitive results were observed with cardiovascular risk showing positive associations with verbal learning, attention, and processing speed at baseline. The inclusion of women whose cardiovascular risk scores lie within healthy ranges may explain the relationships we observed between these markers of risk and cognition at baseline prior to the presence of cognitive impairment. There are different mechanisms that can explain the association between vascular alterations and cognitive decline that have been studied in cross-sectional (72, 73) and longitudinal studies (74, 75). Vascular risks, such as smoking or having a sedentary lifestyle, can provoke narrowing of the arteries, therefore reducing blood circulation and disruption of the flow of nutrients to the brain (7678). Also, vascular alterations such as atherosclerosis are associated with lower cognitive performance (79, 80). All these vascular pathologies have been associated with deficits in memory, processing speed and executive function (73, 80). Studies in LAC countries have shown that prevalent chronic illnesses such as hypertension, diabetes, cerebrovascular disease, and obesity impact cognition and are associated to a higher risk of dementia (81, 82). Moreover, in women, hormonal imbalance can have diverse effects on cardiovascular health and cognitive function. For instance, the decrease in estrogen can contribute to cognitive decline (83, 84).

Subjective cognitive impairment (SCI) at baseline was associated with worse global cognition, verbal learning, and verbal long-term memory. Studies have shown that in preclinical stages of AD, objective cognitive deficits are not present, though individuals may note subtle changes in cognition that could be considered a risk factor of cognitive impairment (85) and may reflect early neurodegeneration (86, 87). Neuroimaging studies have reported an association between subjective cognitive impairment and brain atrophy, particularly in frontal and temporal lobes (88). This is consistent with memory deficits present in people with SCI. Currently, SCI is being studied as an intermediate state between normal cognition and mild cognitive impairment, and, therefore, can be a useful tool in early diagnosis of MCI and AD (89).

Attention was the only cognitive domain that showed significant changes over time. In addition, higher self-rated health and more depression symptoms were associated with greater changes in attention. Changes in attention in the elderly are not fully understood (90). Some studies indicate that more complex attention processes such as selective and alternating attention tend to decrease more than sustained attention (91), while other studies show an impact in all attention processes. In our sample, changes were associated with sustained attention. In cognitive impairment, attention deficits can appear before alterations in other cognitive functions, and poor performance in attention tasks is observed in preclinical phases of AD (9294). Multiple studies have shown depressive symptoms are associated with cognitive decline (27, 28, 95). Depression impacts brain systems that can contribute to difficulties processing information (96), and has been associated with lower volume in frontal gray matter including the orbitofrontal cortex and the cingulate gyrus (97, 98). Further, greater subjective health state was associated with worse attention. One possible explanation for this result is that participants were relatively healthy at baseline. Approximately 75% of individuals rated their health above 80/100, which may have limited the range of subjective health scores, and therefore the ability to detect a meaningful association with cognition.

4.1 Strengths and limitations

This study has several limitations. First, participants had a higher level of education and income relative to the national and regional average, which may limit the generalizability of our findings. Second, the self-reported variables, such as depressive symptoms, physical activity, and subjective health may be subject to response bias. Nonetheless, evidence suggests that self-report provides accurate estimates of disability and disease comorbidity and predicts mortality and other clinical health measures (99). Third, the 17-month follow-up timeline may have been too short to observe noticeable changes in cognition, particularly in cognitively healthy individuals. Lastly, the sample size was limited due to participant attrition, which minimized statistical power at follow-up.

This study also has several strengths. We recruited a relatively large community-based cohort from an under-represented population, and implemented neuropsychological tests that measure diverse cognitive domains. The study also included detailed clinical interviews and several objectively measured variables, such as BMI and blood pressure (i.e., two important components of cardiovascular risk). Hence, our analyses accounted for potential sociodemographic, lifestyle, and health-related confounders known to impact cognition.

4.2 Conclusions

Age, income, and education level showed the most robust associations with cognition in our sample. In addition, subjective cognitive impairment and impaired cognition were observed across global cognition, verbal learning, and memory domains. Our study findings contribute to the investigation of cognitive health in older Hispanic women and may help to inform health professionals about predictors of cognitive decline in this population. Future studies with more extended longitudinal follow-up would contribute to our understanding of how social determinants of health and other biological and health-related markers shape cognitive trajectories in older women.

Data availability statement

The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.

Ethics statement

The studies involving humans were approved by Institutional Bioethics Committee of the Caja del Seguro Social (P-083-16). The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study.

Author contributions

DO: Conceptualization, Investigation, Methodology, Supervision, Writing – original draft. AT: Formal Analysis, Writing – review & editing. SR-A: Methodology, Project administration, Writing – review & editing. AV: Writing – review & editing. GR: Writing – review & editing. MC: Writing – review & editing. GB: Conceptualization, Formal Analysis, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing.

Funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article.

This research was funded by Sistema Nacional de Investigación (SNI) de Panamá, grant numbers [SNI-063-2023; SNI-044-2023; SNI-64-2021; SNI-66-2021; SNI-074-2022; SNI-040-2023], Secretaría Nacional de Ciencia, Tecnología e Innovación (SENACYT), grant number [FID-22-092] and Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), grant numbers [IGI-2021-002; IGI-2021-006].

Acknowledgments

All authors thank PARI-HD study participants for their contribution to research, and past and present PARI-HD staff who assisted in data collection. We also acknowledge the financial support of Sistema Nacional de Investigación (SNI), Secretaría Nacional de Ciencia, Tecnología e Innovación (SENACYT), Universidad Santa María La Antigua (USMA) and the Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT).

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Publisher's note

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.

References

1. United Nations, Department of Economic and Social Affairs. World Population Ageing 2019. New York: UN (2020).

Google Scholar

2. Kinsella K, Victoria A. An Aging World: 2001. (2001).

3. Palloni A, Pinto-Aguirre G, Pelaez M. Demographic and health conditions of ageing in Latin America and the Caribbean. Int J Epidemiol. (2002) 31:762–71. doi: 10.1093/ije/31.4.762

PubMed Abstract | Crossref Full Text | Google Scholar

4. Ribeiro F, Teixeira-Santos AC, Caramelli P, Leist AK. Prevalence of dementia in Latin America and Caribbean countries: systematic review and meta-analyses exploring age, sex, rurality, and education as possible determinants. Ageing Res Rev. (2022) 81:101703. doi: 10.1016/j.arr.2022.101703

PubMed Abstract | Crossref Full Text | Google Scholar

5. Nichols E, Steinmetz JD, Vollset SE, Fukutaki K, Chalek J, Abd-Allah F, et al. Estimation of the global prevalence of dementia in 2019 and forecasted prevalence in 2050: an analysis for the global burden of disease study 2019. Lancet Public Heal. (2022) 7:e105–25. doi: 10.1016/S2468-2667(21)00249-8

Crossref Full Text | Google Scholar

6. López Marmolejo A, Eggers Prieto C, Ruiz-Arranz M. Opportunities for Boosting Output, Employment and Value Chains: Economic Report on Central America, Mexico, Panama and the Dominican Republic. (2023).

7. World Bank Organization. Macro Poverty Outlook for Panama: April 2024. (2024).

8. Quintana H, Moreno Velásquez I, Montenegro Mendoza R, Niño Hall C, Motta J, Roa R. Diabetes mellitus, its prevalence, awareness, and control in Panama data from ENSPA 2019, a national cross-sectional study. Medicine (Baltimore). (2023) 102:e34600. doi: 10.1097/MD.0000000000034600

PubMed Abstract | Crossref Full Text | Google Scholar

9. Del Rio AI, Moreno Velásquez I, Roa R, Montenegro Mendoza R, Motta J, Quintana HK. Prevalence of hypertension and possible risk factors of hypertension unawareness among individuals aged 30–75 years from two Panamanian provinces: results from population-based cross-sectional studies, 2010 and 2019. PLoS One. (2022) 17:e0276222. doi: 10.1371/journal.pone.0276222

PubMed Abstract | Crossref Full Text | Google Scholar

10. Harada CN, Natelson Love MC, Triebel KL. Normal cognitive aging. Clin Geriatr Med. (2013) 29:737–52. doi: 10.1016/j.cger.2013.07.002

PubMed Abstract | Crossref Full Text | Google Scholar

11. Aggarwal NT. Mild cognitive impairment in different functional domains and incident Alzheimer’s disease. J Neurol Neurosurg Psychiatry. (2005) 76:1479–84. doi: 10.1136/jnnp.2004.053561

PubMed Abstract | Crossref Full Text | Google Scholar

12. Saxton J, Snitz BE, Lopez OL, Ives DG, Dunn LO, Fitzpatrick A, et al. Functional and cognitive criteria produce different rates of mild cognitive impairment and conversion to dementia. J Neurol Neurosurg Psychiatry. (2009) 80:737–43. doi: 10.1136/jnnp.2008.160705

PubMed Abstract | Crossref Full Text | Google Scholar

13. Salthouse TA. Selective review of cognitive aging. J Int Neuropsychol Soc. (2010) 16:754–60. doi: 10.1017/S1355617710000706

PubMed Abstract | Crossref Full Text | Google Scholar

14. Christensen H. What cognitive changes can be expected with normal ageing? Aust New Zeal J Psychiatry. (2001) 35:768–75. doi: 10.1046/j.1440-1614.2001.00966.x

Crossref Full Text | Google Scholar

15. Rabbitt P, Diggle P, Holland F, McInnes L. Practice and drop-out effects during a 17-year longitudinal study of cognitive aging. J Gerontol Ser B Psychol Sci Soc Sci. (2004) 59:P84–97. doi: 10.1093/geronb/59.2.P84

Crossref Full Text | Google Scholar

16. Josefsson M, de Luna X, Pudas S, Nilsson L, Nyberg L. Genetic and lifestyle predictors of 15-year longitudinal change in episodic memory. J Am Geriatr Soc. (2012) 60:2308–12. doi: 10.1111/jgs.12000

PubMed Abstract | Crossref Full Text | Google Scholar

17. Sauvaget C. Trends in dementia-free life expectancy among elderly members of a large health maintenance organization. Int J Epidemiol. (1999) 28:1110–8. doi: 10.1093/ije/28.6.1110

PubMed Abstract | Crossref Full Text | Google Scholar

18. Herlitz A, Rehnman J. Sex differences in episodic memory. Curr Dir Psychol Sci. (2008) 17:52–6. doi: 10.1111/j.1467-8721.2008.00547.x

Crossref Full Text | Google Scholar

19. Herlitz A, Nilsson L-G, Bäckman L. Gender differences in episodic memory. Mem Cognit. (1997) 25:801–11. doi: 10.3758/BF03211324

PubMed Abstract | Crossref Full Text | Google Scholar

20. Weiss EM, Kemmler G, Deisenhammer EA, Fleischhacker WW, Delazer M. Sex differences in cognitive functions. Pers Individ Dif. (2003) 35:863–75. doi: 10.1016/S0191-8869(02)00288-X

Crossref Full Text | Google Scholar

21. Okamoto S, Yamada A, Kobayashi E, Liang J. Socioeconomic inequity in long-term care access among older people in Japan. medRxiv Prepr Serv Heal Sci. (2021):3–25. doi: 10.1101/2023.06.12.23291290

Crossref Full Text | Google Scholar

22. Wolters FJ, Chibnik LB, Waziry R, Anderson R, Berr C, Beiser A, et al. Twenty-seven-year time trends in dementia incidence in Europe and the United States. Neurology. (2020) 95:e519–31. doi: 10.1212/WNL.0000000000010022

PubMed Abstract | Crossref Full Text | Google Scholar

23. Subramaniapillai S, Almey A, Natasha Rajah M, Einstein G. Sex and gender differences in cognitive and brain reserve: implications for Alzheimer’s disease in women. Front Neuroendocrinol. (2021) 60:100879. doi: 10.1016/j.yfrne.2020.100879

PubMed Abstract | Crossref Full Text | Google Scholar

24. Goveas JS, Rapp SR, Hogan PE, Driscoll I, Tindle HA, Smith JC, et al. Predictors of optimal cognitive aging in 80+ women: the women’s health initiative memory study. J Gerontol Ser A Biol Sci Med Sci. (2016) 71:S62–71. doi: 10.1093/gerona/glv055

Crossref Full Text | Google Scholar

25. Lv X, Li W, Ma Y, Chen H, Zeng Y, Yu X, et al. Cognitive decline and mortality among community-dwelling Chinese older people. BMC Med. (2019) 17:63. doi: 10.1186/s12916-019-1295-8

PubMed Abstract | Crossref Full Text | Google Scholar

26. John A, Patel U, Rusted J, Richards M, Gaysina D. Affective problems and decline in cognitive state in older adults: a systematic review and meta-analysis. Psychol Med. (2019) 49:353–65. doi: 10.1017/S0033291718001137

PubMed Abstract | Crossref Full Text | Google Scholar

27. Hyde JS, Mezulis AH, Abramson LY. The ABCs of depression: integrating affective, biological, and cognitive models to explain the emergence of the gender difference in depression. Psychol Rev. (2008) 115:291–313. doi: 10.1037/0033-295X.115.2.291

PubMed Abstract | Crossref Full Text | Google Scholar

28. Potter GG, Hartman M, Ward T. Perceived stress and everyday memory complaints among older adult women. Anxiety, Stress Coping. (2009) 22:475–81. doi: 10.1080/10615800802449610

Crossref Full Text | Google Scholar

29. Perini G, Cotta Ramusino M, Sinforiani E, Bernini S, Petrachi R, Costa A. Cognitive impairment in depression: recent advances and novel treatments. Neuropsychiatr Dis Treat. (2019) 15:1249–58. doi: 10.2147/NDT.S199746

PubMed Abstract | Crossref Full Text | Google Scholar

30. Dafsari FS, Jessen F. Depression—an underrecognized target for prevention of dementia in Alzheimer’s disease. Transl Psychiatry. (2020) 10:160. doi: 10.1038/s41398-020-0839-1

PubMed Abstract | Crossref Full Text | Google Scholar

31. World Health Organization. Risk Reduction of Cognitive Decline and Dementia. (2019).

32. Albert KM, Newhouse PA. Estrogen, stress, and depression: cognitive and biological interactions. Annu Rev Clin Psychol. (2019) 15:399–423. doi: 10.1146/annurev-clinpsy-050718-095557

PubMed Abstract | Crossref Full Text | Google Scholar

33. Graziane JA, Beer JC, Snitz BE, Chang C-CH, Ganguli M. Dual trajectories of depression and cognition: a longitudinal population-based study. Am J Geriatr Psychiatry. (2016) 24:364–73. doi: 10.1016/j.jagp.2015.08.001

PubMed Abstract | Crossref Full Text | Google Scholar

34. Weinstein G, Preis SR, Beiser AS, Au R, Kelly-Hayes M, Kase CS, et al. Cognitive performance after stroke—the Framingham heart study. Int J Stroke. (2014) 9:48–54. doi: 10.1111/ijs.12275

PubMed Abstract | Crossref Full Text | Google Scholar

35. Laughlin GA, McEvoy LK, von Mühlen D, Daniels LB, Kritz-Silverstein D, Bergstrom J, et al. Sex differences in the association of framingham cardiac risk score with cognitive decline in community-dwelling elders without clinical heart disease. Psychosom Med. (2011) 73:683–9. doi: 10.1097/PSY.0b013e31822f9089

PubMed Abstract | Crossref Full Text | Google Scholar

36. McGrath ER, Beiser AS, O’Donnell A, Himali JJ, Pase MP, Satizabal CL, et al. Determining vascular risk factors for dementia and dementia risk prediction across mid- to later life. Neurology. (2022) 99:e142–53. doi: 10.1212/WNL.0000000000200521

PubMed Abstract | Crossref Full Text | Google Scholar

37. Peloso GM, Beiser AS, Satizabal CL, Xanthakis V, Vasan RS, Pase MP, et al. Cardiovascular health, genetic risk, and risk of dementia in the Framingham heart study. Neurology. (2020) 95:e1341–50. doi: 10.1212/WNL.0000000000010306

PubMed Abstract | Crossref Full Text | Google Scholar

38. Pastorius CA, Medina-Lezama J, Corrales-Medina F, Bernabé-Ortiz A, Paz-Manrique R, Salinas-Najarro B, et al. Normative values and correlates of carotid artery intima-media thickness and carotid atherosclerosis in Andean-Hispanics: the prevention study. Atherosclerosis. (2010) 211:499–505. doi: 10.1016/j.atherosclerosis.2010.04.009

PubMed Abstract | Crossref Full Text | Google Scholar

39. Lopez-Jaramillo P, Lopez-Lopez J, Cohen D, Alarcon-Ariza N, Mogollon-Zehr M. Epidemiology of hypertension and diabetes mellitus in Latin America. Curr Hypertens Rev. (2021) 17:112–20. doi: 10.2174/1573402116999200917152952

PubMed Abstract | Crossref Full Text | Google Scholar

40. Parra MA, Orellana P, Leon T, Victoria CG, Henriquez F, Gomez R, et al. Biomarkers for dementia in Latin American countries: gaps and opportunities. Alzheimer’s Dement. (2023) 19:721–35. doi: 10.1002/alz.12757

Crossref Full Text | Google Scholar

41. SENACYT, PNUD. Overview of the Panama Assessment of Gender and STI. (2019).

42. Mouynes E. Panama’s Fight for a Delayed Right: Women’s Economic Independence. (2021).

43. Zea S. UN Women and UNICEF Promote Gender Equality and the Empowerment of Girls and Women in Latin America and the Caribbean. (2023).

44. Santamaría A, Gerald C, Chamorro F, Herrera V, Flores H, Sandoval I, et al. Social determinants of violence against women in Panama: results from population-based cross-sectional studies and a femicide registry. Int Health. (2022) 14:363–72. doi: 10.1093/inthealth/ihz116

Crossref Full Text | Google Scholar

45. Youn JC, Kim KW, Lee DY, Jhoo JH, Lee SB, Park JH, et al. Development of the subjective memory complaints questionnaire. Dement Geriatr Cogn Disord. (2009) 27:310–7. doi: 10.1159/000205512

PubMed Abstract | Crossref Full Text | Google Scholar

46. Badia X, Roset M, Montserrat S, Segura A. The Spanish version of EuroQoL: a description and its applications. European quality of life scale. Med Clin. (1999) 112:79–85. 10618804

PubMed Abstract | Google Scholar

47. Lawton MP, Brody EM. Assessment of older people: self-maintaining and instrumental activities of daily living. Gerontologist. (1969) 9:179–86. doi: 10.1093/geront/9.3_Part_1.179

PubMed Abstract | Crossref Full Text | Google Scholar

48. Katz S. Assessing self-maintenance: activities of daily living, mobility, and instrumental activities of daily living. J Am Geriatr Soc. (1983) 31:721–7. doi: 10.1111/j.1532-5415.1983.tb03391.x

PubMed Abstract | Crossref Full Text | Google Scholar

49. Yesavage JA, Brink TL, Rose TL, Lum O, Huang V, Adey M, et al. Development and validation of a geriatric depression screening scale: a preliminary report. J Psychiatr Res. (1982) 17:37–49. doi: 10.1016/0022-3956(82)90033-4

PubMed Abstract | Crossref Full Text | Google Scholar

50. Bays HE, Taub PR, Epstein E, Michos ED, Ferraro RA, Bailey AL, et al. Ten things to know about ten cardiovascular disease risk factors. Am J Prev Cardiol. (2021) 5:100149. doi: 10.1016/j.ajpc.2021.100149

PubMed Abstract | Crossref Full Text | Google Scholar

51. Exalto LG, Quesenberry CP, Barnes D, Kivipelto M, Biessels GJ, Whitmer RA. Midlife risk score for the prediction of dementia four decades later. Alzheimer’s Dement. (2014) 10:562–70. doi: 10.1016/j.jalz.2013.05.1772

Crossref Full Text | Google Scholar

52. Fried LP, Tangen CM, Walston J, Newman AB, Hirsch C, Gottdiener J, et al. Frailty in older adults: evidence for a phenotype. J Gerontol Ser A Biol Sci Med Sci. (2001) 56:M146–56. doi: 10.1093/gerona/56.3.M146

Crossref Full Text | Google Scholar

53. Folstein M, Folstein S, McHugh P. A practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res. (1975) 12:189–98. doi: 10.1016/0022-3956(75)90026-6

PubMed Abstract | Crossref Full Text | Google Scholar

54. Reitan RM. Validity of the trail making test as an indicator of organic brain damage. Percept Mot Skills. (1958) 8:271–6. doi: 10.2466/pms.1958.8.3.271

Crossref Full Text | Google Scholar

55. Wechsler D. WAIS-III Administration and Scoring Manual. (1997).

56. Spreen O, Benton AL. Neurosensory centre comprehensive examination for aphasia. Neuropsychol Lab Univ Victoria. (1969).

Google Scholar

57. Torralva T, Roca M, Gleichgerrcht E, López P, Manes F. INECO frontal screening (IFS): a brief, sensitive, and specific tool to assess executive functions in dementia–CORRECTED VERSION. J Int Neuropsychol Soc. (2009) 15:777–86. doi: 10.1017/S1355617709990415

PubMed Abstract | Crossref Full Text | Google Scholar

58. Morris JC, Heyman A, Mohs RC, Hughes JP, van Belle G, Fillenbaum G, et al. The consortium to establish a registry for Alzheimer’s disease (CERAD). part I. Clinical and neuropsychological assessment of Alzheimer’s disease. Neurology. (1989) 39:1159–1159. doi: 10.1212/WNL.39.9.1159

PubMed Abstract | Crossref Full Text | Google Scholar

59. Wechsler D. Weschler memory scale-revised. Texas Psychol Corp. (1987).

Google Scholar

60. Kaplan A, Goodglass H, Weintraub S. Boston Naming Test. Philadelphia: Lea Febiger (1983).

Google Scholar

61. Sunderland T, Hill JL, Mellow AM, Lawlor BA, Gundersheimer J, Newhouse PA, et al. Clock drawing in Alzheimer’s disease. J Am Geriatr Soc. (1989) 37:725–9. doi: 10.1111/j.1532-5415.1989.tb02233.x

PubMed Abstract | Crossref Full Text | Google Scholar

62. Mejia-Arango S, Garcia-Cifuentes E, Samper-Ternent R, Borda MG, Cano-Gutierrez CA. Socioeconomic disparities and gender inequalities in dementia: a community-dwelling population study from a middle-income country. J Cross Cult Gerontol. (2021) 36:105–18. doi: 10.1007/s10823-020-09418-4

PubMed Abstract | Crossref Full Text | Google Scholar

63. Prince M, Acosta D, Ferri CP, Guerra M, Huang Y, Rodriguez JJL, et al. Dementia incidence and mortality in middle-income countries, and associations with indicators of cognitive reserve: a 10/66 dementia research group population-based cohort study. Lancet. (2012) 380:50–8. doi: 10.1016/S0140-6736(12)60399-7

PubMed Abstract | Crossref Full Text | Google Scholar

64. Gonçalves NG, Avila JC, Bertola L, Obregón AM, Ferri CP, Wong R, et al. Education and cognitive function among older adults in Brazil and Mexico. Alzheimer’s Dement Diagn Assess Dis Monit. (2023) 15(3):1–9. doi: 10.1002/dad2.12470

Crossref Full Text | Google Scholar

65. Suemoto CK, Bertola L, Grinberg LT, Leite REP, Rodriguez RD, Santana PH, et al. Education, but not occupation, is associated with cognitive impairment: the role of cognitive reserve in a sample from a low-to-middle-income country. Alzheimer’s Dement. (2022) 18:2079–87. doi: 10.1002/alz.12542

Crossref Full Text | Google Scholar

66. Hambleton IR, Caixeta R, Jeyaseelan SM, Luciani S, Hennis AJM. The rising burden of non-communicable diseases in the Americas and the impact of population aging: a secondary analysis of available data. Lancet Reg Heal Am. (2023) 21:100483. doi: 10.1016/j.lana.2023.100483

Crossref Full Text | Google Scholar

67. Henao C, Lis-Gutiérrez JP, Lis-Gutiérrez M. Inequality in access to healthcare: a Latin American perspective. Salud Cienc y Tecnol. (2023) 3:1–11. doi: 10.56294/saludcyt2023355

Crossref Full Text | Google Scholar

68. Dobielska M, Bartosik NK, Zyzik KA, Kowalczyk E, Karbownik MS. Mechanisms of cognitive impairment in depression. May probiotics help? Front Psychiatry. (2022) 13:1–17. doi: 10.3389/fpsyt.2022.904426

Crossref Full Text | Google Scholar

69. Morimoto SS, Kanellopoulos D, Manning KJ, Alexopoulos GS. Diagnosis and treatment of depression and cognitive impairment in late life. Ann N Y Acad Sci. (2015) 1345:36–46. doi: 10.1111/nyas.12669

PubMed Abstract | Crossref Full Text | Google Scholar

70. Elderkin-Thompson V. Executive dysfunction and visuospatial ability among depressed elders in a community setting. Arch Clin Neuropsychol. (2004) 19:597–611. doi: 10.1016/j.acn.2003.08.009

PubMed Abstract | Crossref Full Text | Google Scholar

71. Barnes DE, Cenzer IS, Yaffe K, Ritchie CS, Lee SJ. A point-based tool to predict conversion from mild cognitive impairment to probable Alzheimer’s disease. Alzheimer’s Dement. (2014) 10:646–55. doi: 10.1016/j.jalz.2013.12.014

Crossref Full Text | Google Scholar

72. Oviedo DC, Lezcano H, Perez AR, Villarreal AE, Carreira MB, Isaza B, et al. Vascular biomarkers and ApoE4 expression in mild cognitive impairment and Alzheimer’s disease. AIMS Neurosci. (2018) 5:148–61. doi: 10.3934/Neuroscience.2018.2.148

PubMed Abstract | Crossref Full Text | Google Scholar

73. Zhong W, Cruickshanks KJ, Schubert CR, Carlsson CM, Chappell RJ, Klein BEK, et al. Pulse wave velocity and cognitive function in older adults. Alzheimer Dis Assoc Disord. (2014) 28:44–9. doi: 10.1097/WAD.0b013e3182949f06

PubMed Abstract | Crossref Full Text | Google Scholar

74. Fang Y, Doyle MF, Alosco ML, Mez J, Satizabal CL, Qiu WQ, et al. Cross-sectional association between blood cell phenotypes, cognitive function, and brain imaging measures in the community-based Framingham heart study. J Alzheimer’s Dis. (2022) 87:1291–305. doi: 10.3233/JAD-215533

Crossref Full Text | Google Scholar

75. Souza-Lima J, Matsudo SM, Valdivia-Moral P, Pérez W, Drenowatz C, Zenteno JS, et al. Association between cardiovascular risk factors and cognitive impairment in adults aged 60 years or older from Chile: a cross-sectional study. BMC Geriatr. (2023) 23:806. doi: 10.1186/s12877-023-04410-2

PubMed Abstract | Crossref Full Text | Google Scholar

76. Toda N, Okamura T. Cigarette smoking impairs nitric oxide-mediated cerebral blood flow increase: implications for Alzheimer’s disease. J Pharmacol Sci. (2016) 131:223–32. doi: 10.1016/j.jphs.2016.07.001

PubMed Abstract | Crossref Full Text | Google Scholar

77. Favero G, Paganelli C, Buffoli B, Rodella LF, Rezzani R. Endothelium and its alterations in cardiovascular diseases: life style intervention. Biomed Res Int. (2014) 2014:1–28. doi: 10.1155/2014/801896

Crossref Full Text | Google Scholar

78. Schmidt W, Endres M, Dimeo F, Jungehulsing GJ. Train the vessel, gain the brain: physical activity and vessel function and the impact on stroke prevention and outcome in cerebrovascular disease. Cerebrovasc Dis. (2013) 35:303–12. doi: 10.1159/000347061

PubMed Abstract | Crossref Full Text | Google Scholar

79. de la Torre JC. Cardiovascular risk factors promote brain hypoperfusion leading to cognitive decline and dementia. Cardiovasc Psychiatry Neurol. (2012) 2012:1–15. doi: 10.1155/2012/367516

Crossref Full Text | Google Scholar

80. Mataró M, Soriano-Raya JJ, López-Olóriz J, Miralbell J, Dacosta-Aguayo R. Cerebrovascular markers in lowered cognitive function. J Alzheimer’s Dis. (2014) 42:S383–91. doi: 10.3233/JAD-141443

Crossref Full Text | Google Scholar

81. Oliveira MFB de, Yassuda MS, Aprahamian I, Neri AL, Guariento ME. Hypertension, diabetes and obesity are associated with lower cognitive performance in community-dwelling elderly: data from the FIBRA study. Dement Neuropsychol. (2017) 11:398–405. doi: 10.1590/1980-57642016dn11-040009

PubMed Abstract | Crossref Full Text | Google Scholar

82. Perales-Puchalt J, Vidoni ML, Llibre Rodríguez J, Vidoni ED, Billinger S, Burns J, et al. Cardiovascular health and dementia incidence among older adults in Latin America: results from the 10/66 study. Int J Geriatr Psychiatry. (2019) 34:1041–9. doi: 10.1002/gps.5107

PubMed Abstract | Crossref Full Text | Google Scholar

83. Jacobs EG, Weiss BK, Makris N, Whitfield-Gabrieli S, Buka SL, Klibanski A, et al. Impact of sex and menopausal Status on episodic memory circuitry in early midlife. J Neurosci. (2016) 36:10163–73. doi: 10.1523/JNEUROSCI.0951-16.2016

PubMed Abstract | Crossref Full Text | Google Scholar

84. Bortz J, Klatt KC, Wallace TC. Perspective: estrogen and the risk of cognitive decline: a missing choline(rgic) link? Adv Nutr. (2022) 13:376–87. doi: 10.1093/advances/nmab145

PubMed Abstract | Crossref Full Text | Google Scholar

85. Dubois B, Hampel H, Feldman HH, Scheltens P, Aisen P, Andrieu S, et al. Preclinical Alzheimer’s disease: definition, natural history, and diagnostic criteria. Alzheimer’s Dement. (2016) 12:292–323. doi: 10.1016/j.jalz.2016.02.002

Crossref Full Text | Google Scholar

86. Steinberg SI, Negash S, Sammel MD, Bogner H, Harel BT, Livney MG, et al. Subjective memory complaints, cognitive performance, and psychological factors in healthy older adults. Am J Alzheimer’s Dis Other Dementiasr. (2013) 28:776–83. doi: 10.1177/1533317513504817

Crossref Full Text | Google Scholar

87. Si T, Xing G, Han Y. Subjective cognitive decline and related cognitive deficits. Front Neurol. (2020) 11:1–13. doi: 10.3389/fneur.2020.00247

PubMed Abstract | Crossref Full Text | Google Scholar

88. Wang X, Huang W, Su L, Xing Y, Jessen F, Sun Y, et al. Neuroimaging advances regarding subjective cognitive decline in preclinical Alzheimer’s disease. Mol Neurodegener. (2020) 15:55. doi: 10.1186/s13024-020-00395-3

PubMed Abstract | Crossref Full Text | Google Scholar

89. Choe YM, Byun MS, Lee JH, Sohn BK, Lee DY, Kim JW. Subjective memory complaint as a useful tool for the early detection of Alzheimer’s disease. Neuropsychiatr Dis Treat. (2018) 14:2451–60. doi: 10.2147/NDT.S174517

PubMed Abstract | Crossref Full Text | Google Scholar

90. Veríssimo J, Verhaeghen P, Goldman N, Weinstein M, Ullman MT. Evidence that ageing yields improvements as well as declines across attention and executive functions. Nat Hum Behav. (2021) 6:97–110. doi: 10.1038/s41562-021-01169-7

Crossref Full Text | Google Scholar

91. Yang H-L, Chu H, Miao N-F, Chang P-C, Tseng P, Chen R, et al. The construction and evaluation of executive attention training to improve selective attention, focused attention, and divided attention for older adults with mild cognitive impairment: a randomized controlled trial. Am J Geriatr Psychiatry. (2019) 27:1257–67. doi: 10.1016/j.jagp.2019.05.017

PubMed Abstract | Crossref Full Text | Google Scholar

92. Belleville S, Chertkow H, Gauthier S. Working memory and control of attention in persons with Alzheimer’s disease and mild cognitive impairment. Neuropsychology. (2007) 21:458–69. doi: 10.1037/0894-4105.21.4.458

PubMed Abstract | Crossref Full Text | Google Scholar

93. Rapp MA, Reischies FM. Attention and executive control predict Alzheimer disease in late life: results from the Berlin aging study (BASE). Am J Geriatr Psychiatry. (2005) 13:134–41. doi: 10.1097/00019442-200502000-00007

PubMed Abstract | Crossref Full Text | Google Scholar

94. Saunders NLJ, Summers MJ. Attention and working memory deficits in mild cognitive impairment. J Clin Exp Neuropsychol. (2010) 32:350–7. doi: 10.1080/13803390903042379

PubMed Abstract | Crossref Full Text | Google Scholar

95. Alfaro-Acha A, Al Snih S, Raji MA, Markides KS, Ottenbacher KJ. Does 8-foot walk time predict cognitive decline in older Mexicans Americans? J Am Geriatr Soc. (2007) 55:245–51. doi: 10.1111/j.1532-5415.2007.01039.x

PubMed Abstract | Crossref Full Text | Google Scholar

96. Geraets AFJ, Schram MT, Jansen JFA, Koster A, Dagnelie PC, van Greevenbroek MMJ, et al. The relation of depression with structural brain abnormalities and cognitive functioning: the Maastricht study. Psychol Med. (2022) 52:3521–30. doi: 10.1017/S0033291721000222

Crossref Full Text | Google Scholar

97. Zhang F, Peng W, Sweeney JA, Jia Z, Gong Q. Brain structure alterations in depression: psychoradiological evidence. CNS Neurosci Ther. (2018) 24:994–1003. doi: 10.1111/cns.12835

PubMed Abstract | Crossref Full Text | Google Scholar

98. Dotson VM, Beason-Held L, Kraut MA, Resnick SM. Longitudinal study of chronic depressive symptoms and regional cerebral blood flow in older men and women. Int J Geriatr Psychiatry. (2009) 24:809–19. doi: 10.1002/gps.2298

PubMed Abstract | Crossref Full Text | Google Scholar

99. Idler EL, Benyamini Y. Self-rated health and mortality: a review of twenty-seven community studies. J Health Soc Behav. (1997) 38:21. doi: 10.2307/2955359

PubMed Abstract | Crossref Full Text | Google Scholar

Keywords: Hispanic, cognition, cardiovascular, depressive symptoms, health behaviors, older adults, Latin America, longitudinal studies

Citation: Oviedo DC, Tratner AE, Rodríguez-Araña S, Villarreal AE, Rangel G, Carreira MB and Britton GB (2024) Predictors of cognitive change in cognitively healthy older women in Panama: the PARI-HD study. Front. Glob. Womens Health 5:1353657. doi: 10.3389/fgwh.2024.1353657

Received: 11 December 2023; Accepted: 28 May 2024;
Published: 13 June 2024.

Edited by:

Kejal Kantarci, Mayo Clinic, United States

Reviewed by:

Michelle Mielke, Wake Forest University, United States
Fabiana Silva Ribeiro, University of Luxembourg, Luxembourg

© 2024 Oviedo, Tratner, Rodríguez-Araña, Villarreal, Rangel, Carreira and Britton. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Gabrielle B. Britton, Z2JyaXR0b25AaW5kaWNhc2F0Lm9yZy5wYQ==

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.