Association of obesity classified by body mass index and fat mass percentage with cardiometabolic risk factors among school-age children in 6 provinces, China

LIU Jun-ting; YAO Hong-yan; YU Shi-cheng; LIU Jian-jun; ZHU Guang-jin; HAN Shao-mei; XU Tao

doi:10.11852/zgetbjzz2021-1752

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Chinese Journal of Child Health Care ›› 2022, Vol. 30 ›› Issue (5) : 469-474. DOI: 10.11852/zgetbjzz2021-1752

Association of obesity classified by body mass index and fat mass percentage with cardiometabolic risk factors among school-age children in 6 provinces, China

LIU Jun-ting^*, YAO Hong-yan, YU Shi-cheng, LIU Jian-jun, ZHU Guang-jin, HAN Shao-mei, XU Tao

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Abstract

Objective To explore the association of obesity classified by body mass index (BMI), body fat mass percentage (FMP) and the cross-grouping of BMI and FMP with cardiometabolic risk factors, so as to provide basis for the prevention and control of childhood obesity and related metabolic abnormalities. Methods Based on the cross-sectional data of the survey in China completed in 6 provinces (Heilongjiang, Inner Mongolia, Ningxia, Sichuan, Yunnan and Hunan), 11 542 school-age children aged 10 to 18 were selected as the research subjects. The obesity status was classified separately or cross-classified by BMI and FMP, and the Logistic regression model was used to analyze and compare the risks of cardiometabolic risk factors. Results Without adjusting for the waist circumference (WC), the group [BMI(-)+FMP(+)] had a lower risk of elevated low high-density lipoprotein cholesterol (HDL-C) and elevated blood glucose, however, the other groups had a higher risk of obesity-related metabolic abnormalities. After adjusting for WC, the [BMI(+)+FMP(+)] group had a higher risk of high triglycerides(TG) [OR(95%CI):2.55 (1.29 - 5.02)], dyslipidemia [OR(95%CI):2.07 (1.19 - 3.61)] and elevatedfasting blood pressure [OR(95%CI):2.20 (1.29 - 3.77)] among boys. Among girls, the [BMI(+)] and [FMP(+)] group had a higher risk of dyslipidemia [OR(95%CI):2.02(1.09 - 3.74)]. Conclusion It is necessary to add FMP when assessing child obesity to screen for the risk of dyslipidemia and elevated blood pressure.

Key words

obesity / fat mass percentage / cardiometabolic risk factors / school-age children

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LIU Jun-ting, YAO Hong-yan, YU Shi-cheng, LIU Jian-jun, ZHU Guang-jin, HAN Shao-mei, XU Tao. Association of obesity classified by body mass index and fat mass percentage with cardiometabolic risk factors among school-age children in 6 provinces, China[J]. Chinese Journal of Child Health Care. 2022, 30(5): 469-474 https://doi.org/10.11852/zgetbjzz2021-1752

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