AUTHOR=Chen Panpan , Zhu Leilei , Mou Yanli , Zhao Shuyun , Huang Guanyou TITLE=The association between glycated hemoglobin, physical activity and infertility: a multiple logistic regression and mediation analysis based on the NHANES database JOURNAL=Frontiers in Endocrinology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1495470 DOI=10.3389/fendo.2025.1495470 ISSN=1664-2392