Background: The average age at menarche in the Taiwanese population is falling. Contrarily, the prevalence of metabolic syndrome (MetS) showed a worldwide increase in the past two decades. The aim of this study was to examine the association between age at menarche and MetS.
Materials and methods: A total of 3292 women aged 19-91 years old were enrolled in two databases from 2004 to 2008. MetS was defined according to American Heart Association's criteria. Age at menarche was obtained from self-reported questionnaires. Multiple logistic regression analyses were used to estimate the association between age at menarche and MetS with adjustment for potential confounding variables.
Results: The prevalence of MetS increased with age. After adjusting age, lifestyle status, and reproductive factors as variables, subjects who had menarche at a younger age showed significantly higher risk of MetS. The adjusted odds ratio of having MetS in <12 and 12-14 years old menarche age groups were 1.71 (1.07-2.71) and 1.22 (1.00-1.50), respectively. The significant increase in odds ratio for MetS in early age menarche also reveals a dose-response effect.
Conclusions: Early onset of menarche is an important risk factor of MetS and may help identify women at risk of MetS.
Keywords: Menarche; Metabolic syndrome; Taiwan.
Copyright © 2015 Asia Oceania Association for the Study of Obesity. Published by Elsevier Ltd. All rights reserved.