Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/2171
Type: Artigo de periódico
Title: Secular trends in age at menarche in relation to body mass index
Author: Castilho, Silvia Diez
Pinheiro, Caroline Damasceno
Bento, Caroline Agnelli
de Azevedo Barros-Filho, Antonio
Cocetti, Monize
Abstract: Objective: To evaluate the secular trend of menarche according to body mass index (BMI). Subjects and methods: Six hundred and eighty five girls (7-18 years) assessed in 2001 were compared with 750 evaluated in 2010. They were grouped by BMI Z-score: (thin + normal) and (overweight + obese). Menarche was reported by status quo and age at menarche estimated by a logit model. We used the Qui-square test, Mann-Whitney test, and Logistic Regression, at a 5% significance level. Results: Menarche advanced 3.24 months. There was an increase in obesity, and a decrease of the prevalence of normal girls. Menarche was anticipated by 1.44 month in the thin + normal group and by 5.76 months in the overweight + obese group. There was no interaction between the effects determined by the evaluated period and nutritional diagnosis. Conclusions: Although both the period and BMI influence the menarche, one cannot attribute this advance only to changes in the nutritional profile of the sample. Other factors that were not tested may also contribute to this finding. Arq Bras Endocrinol Metab. 2012;56(3):195-200
Subject: Menarche
body mass index
obesity
trends
Country: Brazil
Editor: Sbem-Soc Brasil Endocrinologia & Metabologia
Rights: fechado
Date Issue: 2012
Appears in Collections:FCM - Artigos e Materiais de Revistas Científicas

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