ArticleBMC public health2024
The association between age at menopause and bone health in Southwest China women: mediation effect of body mass index.
Article in BMC public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Associations of pregnancies and livebirths with postmenopausal osteoporosis odds and modifying effects of physical activity.BMC public health · 2026Article
- Smoking shapes the relationship between metabolic biomarkers and femoral-neck bone mineral density: A stratified analysis by smoking status.Tobacco induced diseases · 2026Article
- Anthropometric indices and mortality in postmenopausal women: NHANES 1999-2018 evidence.BMC women's health · 2025Article
- Genetic Insights Into the Relationship Between Menstrual Factors and Site-/Age-Specific Bone Mineral Density.International journal of genomics · 2025Article
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8 authors.
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Abstract
backgroundPrevious studies have yielded inconsistent findings regarding the association between age at menopause and bone health, with limited exploration of potential mediating factors, particularly in the less-developed muti-ethnic regions of China. Our objective was to analyze the association between age at menopause and bone health among postmenopausal women in southwest China, while also examining the mediating effect of body mass index (BMI) and the moderating effect of years since menopause on this association. METHODS AND
resultsThe analysis included a total of 15,352 naturally postmenopausal women obtained from the baseline data of the China Multi-Ethnic Cohort (CMEC) Study. Multiple linear regression was used for multivariate analysis. Mediation analysis was conducted to examine the mediating role of BMI in the association between age at menopause and bone health. A significant positive association was observed between age at menopause and bone health index (Quantitative ultrasound index, QUI). Specifically, with each year's delay in age at menopause, there was an increase of 0.260 (95% confidence interval (CI): 0.152-0.368) in QUI. Notably, women with later menopause (menopausal age ≥ 53 years) exhibited a higher QUI (β: 2.684, 95%CI: 1.503-3.865). Additionally, BMI partially mediated the relationship between age at menopause and QUI, accounting for 9.0% of the total effect, with an indirect effect coefficient β(95%CI) was 0.023(0.014, 0.032). Besides, it is worth mentioning that years since menopause moderated the association between age at menopause and bone health as well as the mediating effect of BMI.
conclusionNaturally postmenopausal women with a later age at menopause demonstrate enhanced bone health. Maintaining a moderately high BMI, without progressing to overweight or obesity, may provide health benefits for postmenopausal women, especially for those with a longer duration since menopause.
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