期刊
BRITISH JOURNAL OF NUTRITION
卷 126, 期 6, 页码 950-955出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114520004882
关键词
Central obesity; BMI; Waist circumference; Waist; height ratio; Adolescents
资金
- department of education in Shandong Province, China
- medical and health programme of Shandong, China [2014WS0376]
The study examined the prevalence of central obesity among normal-weight children and adolescents, finding a higher prevalence in the high-normal BMI group compared to the low-normal BMI group.
The prevalence of central obesity in the total population has been reported in numerous studies. However, information on the prevalence of central obesity within normal-category BMI is scant. In the present study, we examined the profiles of central obesity among normal-weight children and adolescents. A total of 29 516 (14 226 boys and 15 290 girls) normal-weight children and adolescents (excluding underweight, overweight and obesity) aged 7-18 years were included in the final analysis. Central obesity was defined by the international age- and sex-specific cut-offs of waist circumference (WC) and threshold of waist:height ratio (WHtR >= 0 center dot 5). All subjects were classified into four groups (Q1-Q4) according to the age- and sex-specific quartiles of BMI, those in the upper fourth (Q4) were defined as 'high-normal BMI' and those in the lower fourth (Q1) were defined as 'low-normal BMI'. The prevalence of central obesity as measured by WC was 9 center dot 90 (95 % CI 9 center dot 41, 10 center dot 39) % for boys and 8 center dot 11 (95 % CI 7 center dot 68, 8 center dot 54) % for girls; by WHtR was 2 center dot 97 (95 % CI 2 center dot 69, 3 center dot 25) % for boys and 2 center dot 44 (95 % CI 2 center dot 20, 2 center dot 68) % for girls. Subjects in the Q4 group had a much higher prevalence of central obesity than their counterparts in the Q1 group (P < 0 center dot 01). Our findings suggest that the health risks of children with normal-weight central obesity may be missed when BMI is used alone as a measure; it is meaningful to include WC in clinical practice and to include the simple message 'Keep your waist to less than half your height'.
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