The relation between body mass index and percentage body fat among Chinese adolescent living in urban Beijing / 中华流行病学杂志
Chinese Journal of Epidemiology
;
(12): 113-116, 2004.
Artigo
em Chinês
| WPRIM
| ID: wpr-342375
ABSTRACT
<p><b>OBJECTIVE</b>To study the relation between body mass index (BMI) and percentage body fat (PBF) in Chinese adolescent, and to compare the prevalence of overweight and obesity using BMI or PBF standards.</p><p><b>METHODS</b>BMI from 757 girls with an average aged of 10.1 years in the rural areas, 165 girls average aged 13.5 years in suburbs and 172 boys average aged 13.7 years in suburb of Beijing, were measured. Their body compositions were also measured by dual-energy X-ray absorptiometry (DEXA).</p><p><b>RESULTS</b>BMI was found closely correlated with PBF in each age group of rural and suburb girls and suburb boys with the correlation coefficient(r) of 0.59 - 0.83. When age, height and pubertal development were controlled, r became 0.54 - 0.88. The prevalence rates of obesity in rural girls, suburb girls and suburb boys were 33.1%, 21.8% and 21.5%, when PBF cutoff values (girls PBF >or= 35%, boys PBF >or= 25%) were used. However, the rates became 2.4%, 3.0% and 4.0% when BMI cutoff values of International Obesity Task Force (IOTF) were used. Compared with PBF cutoff values for obesity, the IOTF recommended BMI cutoff values had relatively lower sensitivity (7.3% - 18.9%) and higher specificity (100%).</p><p><b>CONCLUSION</b>BMI correlated well with PBF in Beijing adolescent. IOTF-BMI cutoff values showed low sensitivity and high specificity to Chinese adolescent which might be suitable for identifying obesity but not for the purpose of screening.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
População Rural
/
População Suburbana
/
População Urbana
/
Composição Corporal
/
Índice de Massa Corporal
/
Modelos Logísticos
/
China
/
Fatores Sexuais
/
Epidemiologia
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adolescente
/
Criança
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Chinês
Revista:
Chinese Journal of Epidemiology
Ano de publicação:
2004
Tipo de documento:
Artigo
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