Puberty in a sample of Brazilian schoolgirls: timing and anthropometric characteristics.

Autor: Feibelmann TC; Department of Clinical Medicine, Department of Endocrinology and Metabolism, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil., Silva AP; Department of Clinical Medicine, Department of Endocrinology and Metabolism, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil., Resende DC; Department of Clinical Medicine, Department of Endocrinology and Metabolism, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil., Resende EA; Department of Clinical Medicine, Department of Endocrinology and Metabolism, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil., Scatena LM; Department of Social Medicine, UFTM, Uberaba, MG, Brazil., Borges Mde F; Department of Clinical Medicine, Department of Endocrinology and Metabolism, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil.
Jazyk: angličtina
Zdroj: Archives of endocrinology and metabolism [Arch Endocrinol Metab] 2015 Apr; Vol. 59 (2), pp. 105-11. Date of Electronic Publication: 2015 Apr 01.
DOI: 10.1590/2359-3997000000021
Abstrakt: Objective: The objective of this study was to determine the age at which puberty begins, age of menarche and anthropometric data of the participants at different stages of puberty.
Subjects and Methods: This is a cross-sectional study in which we evaluated 665 girls, a sample representing the female schoolchildren population in Uberaba.
Results: We found that thelarche, pubarche, underarm hair and menarche were attained at the age of 9.8 ± 1.4, 10.2 ± 1.4, 10.5 ± 1.5 and 11.7 ± 1.3 years, respectively. The mean interval between thelarche and menarche (ITM) was 1.7 ± 1.3 years. The prevalence of overweight and obesity was 31.3% and 95% of the participants began at thelarche between the age of 7 and 12 years.
Conclusion: These values indicate a secular tendency to the decrease of the age of menarche and an earlier start of puberty. It is very important to understand these parameters to establish public policies aimed at plans to prevent these early events, especially regarding control of the prevalence of obesity.
Databáze: MEDLINE