Consistency analysis of body composition and overweight/obesity among infants
Objective To investigate the prevalence of overweight and obesity among infants in Chongqing,and to analyze the consistency of body composition with overweight/obesity,so as to provide a basis for child nutrition assessment and the prevention and control of childhood obesity.Methods A total of 4 546 infants aged 0 to 12 months who visited the outpatient clinic of the Department of Child Health of Chongqing Maternal and Child Health Hospital were selected into this study from September 2021 to September 2023,and physical measurements were routinely performed.At the same time,a three-dimensional modeling body composition analyzer was used to determine their body composition,and the detection indicators included length,weight,body mass index(BMI),protein,inorganic salt,body water,muscle mass,lean body mass,etc.The relationship of gender,month age and nutritional status with body composition,and the consistency of body fat percentage and weight-for-length Z-score(WLZ)diagnosing overweight/obesity were analyzed.Results The body length,weight,BMI,basal metabolism,total water content,body fat percentage,body fat weight,fat-free body weight,muscle weight,protein and inorganic salt of male infants were significantly higher than those in female infants(t=10.427,14.183,10.586,10.413,10.291,20.712,22.222,10.601,10.139,9.559,17.447,P＜0.001).The detection rates of overweight and obesity reached the peak at 5 and 6 months old(P＜0.05).In the total composition,the proportion of body fat weight gradually increased among weight loss(13.72％),normal(17.81％),overweight(20.79％)and obesity(23.34％)groups(P＜0.05).The detection rates of overweight and obesity was higher male infants than in female infants(x2=37.808,17.655,P＜0.001).The detection rate of infant obesity diagnosed by WLZ was 10.60％for male infants and 7.04％for female infants,while the detection rate of infant obesity diagnosed by body composition test was 19.67％for male infants and 12.95％for female infants.The consistency of percentage of body fat and WLZ screening for infant obesity was high,with a Kappa index of 0.614 and 0.649 for male and female infants,respectively(P＜0.001).Conclusions The current situation of overweight and obesity among infants in Chongqing is not optimistic,and the combination of body composition testing can reduce the rate of missed diagnosis and misdiagnosis,as well as the development of individualized interventions.It is of great practical significance to adjust the infant nutrition structure and reduce the health risk.
body compositioninfantsobesitynutritional assessment
NETL
NSTL
万方数据
