Association of sexual maturation with excess body weight and height in children and adolescents

نویسندگان

  • Jucemar Benedet
  • Adair da Silva Lopes
  • Fernando Adami
  • Patrícia de Fragas Hinnig
  • Francisco de Assis Guedes de Vasconcelos
چکیده

BACKGROUND Studies addressing the influence of early sexual maturation on the excess of body weight and height of children and adolescents are scarce. The aim of the study was to analyze the association of sexual maturation with excess body weight and height in children and adolescents. METHODS This was a cross-sectional study performed in Florianópolis city, Brazil, in 2007, with 2339 school children, aged 8-14 years (1107 males). Selection was based on a probabilistic, cluster-stratified sampling technique. School children were classified according to the presence of excess body weight, using sex- and age-specific body mass index (BMI) cutoff points. Z-scores were calculated from height and BMI data. Sexual maturation was self-assessed according to Tanner stages of development. Subjects were ranked based on tertiles of sexual maturation (early, normal and late) for each stage of development. Poisson and linear regression models were used. RESULTS Compared to the reference group (normal sexual maturation), early maturing females had higher prevalence of excess weight (adjusted prevalence ratio: 1.70; 95% CI: 1.24 to 2.33) and increased height-for-age (adjusted β: 0.37; 95% CI: 0.14 to 0.59), while late maturing females had lower prevalence of excess weight (adjusted prevalence ratio: 0.57; 95% CI: 0.37 to 0.87) and decreased height-for-age (adjusted β: -0.38; 95% CI: -0.56 to -0.20). In males, early and late sexual maturation were associated with increased (adjusted β: 0.37; 95% CI: 0.14 to 0.59) and decreased (adjusted β: -0.38; 95% CI: -0.56 to -0.20) height-for-age, respectively. CONCLUSION Early sexual maturation is associated with excess body weight in females and with greater height-for-age in both sexes.

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عنوان ژورنال:

دوره 14  شماره 

صفحات  -

تاریخ انتشار 2014