Antropometria, estado nutricional e maturação sexual em meninas de 09 a 17 anos de idade de diferentes niveis socioeconomicos em Cascavel - Parana / Anthropometry, nutritional status and sexual maturation of girls from 09 to 17 years old from differents socioeconomic levels in Cascavel - Parana

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Objective: To evaluate the anthropometry, the nutritional status and the sexual maturation of girls from nine to 17 years old in different social economic levels in the city of Cascavel, west of the state of Paraná - Brazil. Methods: Cross sectional study was carried in 2006 with 2,761 girls in 27 schools (14 private and 13 public). Were evaluated the weight and the stature to the Body Mass Index (BMI) calculus. The age at menarche was obtained by the status quo method. To the evaluation of the sexual maturation was accomplished a self-evaluation according to the criterion described by Tanner. The social economic level was obtained by the ABEP (2003) questionnaire being divided as High, Average and Low. All the evaluations were accomplished according to the internationally accepted procedures. The nourishment state was defined as low BMI weight percentile 5; and percentile 85 and obesity >percentile 95 according to the patterns proposed by the World Health Organization and compared to the CDC (2000) data. The nourishment state was also compared with a national proposal developed by Conde e Monteiro (2006) to the values of BMI. The analysis of the data was accomplished with descriptive statistics, with values of average and standard deviation. It was used the chi-squared-test (χ2) and the Tukey test to the multiple comparison between the averages and the t Student test to the comparison among the groups and averages. The level of significance was of p <0.05. Results: The age at menarche of girls was 12.1±1.1; 12.3±1.2 e 12.4±1.2 years old for high, average and low, respectively. The general age at menarche of the girls without the distinction of social economic levels was 12.2 ± 1.2 years old. There were found superior and statistically significant values for the pos-menarche girls in the body weight and in the stature from 10 to 17 years old and in the BMI from 11 to 14 years old. In relation to the nourishment state, the results point that at 09 years old, 29.7% of the girls were overweight or obese by the criterion established by Conde e Monteiro. In the evaluation of the nourishment state related to the mature stage, 27.7% of the girls that are in the M5 stage presented overweight or obesity (Conde e Monteiro) while 9,8% of the girls that are in the M2 stage by the CDC are malnourished. It was also noticed that the girls with better social economic levels who study in private schools tend to present a higher percentile of malnourishment, overweight and obesity. Conclusion: The girls who belong to the high social economic level presented the age at menarche sooner and also the higher stature. Although these differences occur in distinct social economic levels, biologically these differences are small. The classification of the nutritional status, the levels are inside the expected. The references established by Conde e Monteiro identify more students with overweight and obesity and less malnourished than the CDC, however, both references detected very close results. Key-words: Growth, body composition, sexual maturation and adolescent

ASSUNTO(S)

menarche adolescents antropometria menarca nutritional status anthropometry estado nutricional adolescentes

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