Relationship between body mass index and fat mass percentage in children aged 3-17 years in China
10.3760/cma.j.cn112338-20240514-00271
- VernacularTitle:中国3~17岁儿童体质指数与体脂百分比关系的研究
- Author:
Hongliang WANG
1
;
Peipei XU
;
Wei CAO
;
Xuehong PANG
;
Hui PAN
;
Tao XU
;
Bowen CHEN
;
Yuying WANG
;
Zhenyu YANG
;
Qian ZHANG
;
Wenhua ZHAO
Author Information
1. 中国疾病预防控制中心营养与健康所/国家卫生健康委公共营养与健康重点实验室/中国疾病预防控制中心母乳科学研究重点实验室，北京 100050
- Keywords:
Children;
Body mass index;
Fat mass percentage
- From:
Chinese Journal of Epidemiology
2024;45(11):1501-1506
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the relationship between body mass index (BMI) and fat mass percentage (FMP) in children aged 3-17 years in China.Methods:The BMI and FMP data of children aged 3-17 years from the National Nutrition and Health Systematic Survey in 0-18 years old children in China was analyzed. BMI- Z score/BMI and FMP were used to classify the subjects, respectively. Spearman correlation was used to analyze the correlation between BMI and FMP. The consistency between BMI- Z score/BMI and FMP in classifying the subjects was measured using Kappa coefficient. Results:The FMP of malnutrition, normal and overweight/obesity in boys was higher in age group 10-13-year than in other age groups (all P<0.001). The FMP of all nutritional status in girls increased with age (all P<0.05). The BMI of boys in all the FMP levels increased with age (all P<0.05). When the FMP of girls was 25%- or ≥30%, BMI increased with age (all P<0.001). The relationship between BMI and FMP was strong ( r=0.705, P<0.001), with r of 0.618 in boys and 0.884 in girls. The consistency between BMI- Z score/BMI and FMP in classifying the subjects was found to be moderate (Kappa=0.574, P<0.001). Conclusions:There was a strong relationship between BMI and FMP. The consistency between BMI- Z score/BMI and FMP in classifying the subjects was moderate.
