Association between Age at Menarche and Metabolic Syndrome in Southwest Iran: A Population-Based Case- Control Study

Background: Age at menarche affects women’s health outcomes and could be a risk factor for some diseases, such as metabolic syndrome (MetS). We assessed the association between age at menarche and MetS components in women aged ۳۵-۷۰ in Hoveyzeh, southwest Iran. Study Design: A case-control study Methods: This case-control study was conducted on ۵۸۳۰ women aged ۳۵-۷۰ years in the Hoveyzeh cohort study (HCS), a part of the PERSIAN cohort study, from ۲۰۱۶-۲۰۱۸. The case group included women with MetS, while the controls were women without MetS. The MetS is determined based on standard NCEP-ATP III criteria. Data from demographic, socioeconomic, and reproductive history were gathered face-to-face through trained interviews. Moreover, laboratory, anthropometrics, and blood pressure measurements were assayed for participants. Multiple logistic regression was used to estimate the association between age at menarche and MetS, with adjustment for potential confounding variables. Results: The mean age at menarche was ۱۲.۶۰ ± ۱.۷۶ years old. Urban and rural women differed in age at menarche (۱۲.۵۸ ± ۱.۷۱ and ۱۲.۶۳ ± ۱.۸۳ years, respectively). The study revealed a statistically significant relationship between MetS and menarche age. The odds of developing MetS were ۱۴% higher in women with menstrual age ≤ ۱۱ years than in other groups. Conclusion: As evidenced by the results of this study, the odds of having MetS were higher in women whose menarche age was ≤ ۱۱ years. Furthermore, the association between MetS components and age groups at menarche was statistically significant.