Obesidade e maturação sexual precoce em escolares de Florianópolis - SC

Abstract

Objective: To investigate the relationship between early sexual maturation and obesity among students aged 10-14 years from the city of Florianopolis. Methods: A total of 629 students (277 males and 352 females) aged 10-14 years were included in the study. The sample was obtained from two private schools and two public schools in the city of Florianopolis. The body mass index (BMI) was used for determining overweight and obesity. The values of weight, height, and BMI Z score according to gender and age were determined. The LMS method was utilized to determine Z score values. Sexual maturation was evaluated by Tanner stages for both males and females. Subjects were grouped using age-adjusted tertiles for each Tanner stage and gender. Subjects in the first tertile were considered early maturing, while subjects in the second tertile were considered the reference group. Results: Early maturing girls were heavier (β=-0.21, p<0.05), taller (β=-0.15, p<0.05) and had higher BMI values for age (β=-0.3, p<0.05) than girls of other groups. Early maturing boys were taller for age (β=-0.21, p<0.05) than boys of other groups. The prevalence of overweight including obesity of early maturing girls was higher than for the reference group (p=0.01). No association was found between overweight, including obesity, and early sexual maturation among boys (p=0.648). Conclusions: The results of this study are similar to other studies that declare that early maturing girls present a higher prevalence of obesity than non-early maturing girls. The present study did not show any association for boys regarding early sexual maturation and obesity.

Body Mass Index and Height Growth Curves are influenced by Sexual Maturation Status in Brazil: Cross-Sectional Study

“…In several studies, [27,[36][37][38] female children and adolescent with early maturation had higher BMI values, as in this study.…”

“…In a cross-sectional study, Adami and Vasconcelos [27] showed that children and adolescents from both sexes (10 to 14 years old) with early sexual maturation have greater height for age when compared to those who do not have early sexual maturation. Besides, Lewitt et al [30] studied the relationship among sexual maturation stages, BMI and height of boys and girls aged 8 years or more and concluded that BMI is strongly correlated with height in cases of early puberty in both sexes.…”

Association between different contexts of physical activity and abdominal obesity and excess weight in adolescents.

“…Education level of the mother was collected in complete years and classified in < eith years of study and eight years or more of study 20. " Sexual maturation was self-rated by adolescents using maturational development boards proposed by Marshall and Tanner 21 , elaborated by the Department of Nutrition of the Federal University of Santa Catarina, in which the result of the Kendall correlation coefficient was 0.627 (p <0.01) for boys and 0.739 (p <0.01) for girls 22 . In the present study, few adolescents were in the pre-pubertal maturation stage (2.2%), and were excluded from the analysis.…”

<b>Females and post-pubescent adolescents: groups with high exposure to the development of body image dissatisfaction in São Bonifácio, Santa Catarina State, Brazil

“…Another interesting finding was that postpubescent girls expressed greater body dissatisfaction when compared to pre-pubescent ones, or rather, contrary to what occurs in boys. Schoolchildren from southern Brazil also showed similar behavior, with post-pubescent adolescents feeling more body image dissatisfaction when compared to prepubescent ones (AERTZ et al, 2010).…”