Mediation effect of BMI on the relationship between age at menarche and hypertension: The Henan Rural Cohort Study
Autor: | Wen Zhou, Chongjian Wang, Zhongyan Tian, Wenqian Huo, Yuqian Li, Zhenxing Mao, Xiu Yang, Xiaokang Dong, Mengying Fan, Lulu Zhang, Linlin Li |
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Rok vydání: | 2019 |
Předmět: |
030204 cardiovascular system & hematology
Lower risk Body Mass Index Cohort Studies 03 medical and health sciences 0302 clinical medicine Pregnancy Risk Factors Internal Medicine Humans Medicine 030212 general & internal medicine Menarche business.industry Confounding Age Factors Odds ratio medicine.disease Obesity Confidence interval Hypertension Female business Body mass index Demography Cohort study |
Zdroj: | Journal of Human Hypertension. 34:448-456 |
ISSN: | 1476-5527 0950-9240 |
Popis: | The aims of this study were to explore the relationship of age at menarche with the incidence of hypertension in postmenopausal women and to examine whether the degree of obesity, as measured by body mass index (BMI), mediates the relationship. A total of 15361 postmenopausal women from the Henan Rural Cohort Study were included in this study. Subjects provided information on the age of menarche. Logistic regression analysis was used to estimate the odds ratio (OR) and 95% confidence interval (CI). Mediation analysis was used to examine whether the association between age at menarche and hypertension was mediated by BMI, and calculate the proportion to which BMI contributed to this association. The means of the participant's age at menarche and age at recruitment were 16.1 and 61.5 years, respectively. Each 1-year increment in age at menarche was associated with a 3.0% decrease in the risk of hypertension. Compared with the middle quintile (16 years), those who were in the late menarche quintile (≥18 years) had a lower risk of hypertension (OR, 0.876; 95% CI, 0.788-0.975; P = 0.015) after adjusting for age at recruitment, menopausal age, parity, and other potential confounders. The OR (95% CI) of a significant indirect effect of BMI on the age at menarche-hypertension association was 0.977 (0.973-0.981; P = 0.0020). Women with a history of late menarche had a lower risk of hypertension. BMI mediated the effect of age at menarche on hypertension. |
Databáze: | OpenAIRE |
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