Abstract：
Body weight congruence (BWC) has implications for adolescent health. The main goal of this study was to examine the distribution of BWC and its relationship with six psychosocial factors.
A representative sample of N = 3508 adolescents aged 15 and 17 years (52.4% girls) derived from the Health Behaviour in School-aged Children study, conducted in 2017/2018 in Poland, was used. BWC groups were defined based on self-reported BMI and subjective assessment of weight: (1) correct perception; (2) overestimation, and (3). underestimation. Principal component analysis (PCA) extracted the following two factors: a socio-relational factor (SR) related to perceived social support and social self-efficacy, and a body attitudes and social media exposure factor (BAME). Using the total sample, multinomial logistic regression was applied to estimate their impact on the BWC, and gender-specific models were compared.
Half (48.6%) of the adolescents correctly estimated their body weight, 31.0% overestimated it (girls 43.9%, boys 17.1%), and 20.0% underestimated it (boys 37.2%, girls 9.0%). Overestimation of body weight concerns 48.0% of normal weight girls, 50.0% of underweight girls, and 21.3% and 32.1% of normal weight and underweight boys, respectively. The percentage of normal weight (34.4%), and overweight and obese (30.8%) boys who underestimated their body weight was three times higher than the respective percentages of girls that underestimated their weight (9.0% and 11.9%). The SR factor protected adolescents from both underestimation (only in girls) and overestimation in the total sample (OR 0.74, 95%CI 0.68-0.81) and both genders. BAME increased this risk of overestimation in both genders (OR = 1.83, 95%CI 1.67-2.0), and the risk of underestimation among boys.
Prevention programmes should include a wide range of psychosocial factors to improve BWC among adolescents.
A representative sample of N = 3508 adolescents aged 15 and 17 years (52.4% girls) derived from the Health Behaviour in School-aged Children study, conducted in 2017/2018 in Poland, was used. BWC groups were defined based on self-reported BMI and subjective assessment of weight: (1) correct perception; (2) overestimation, and (3). underestimation. Principal component analysis (PCA) extracted the following two factors: a socio-relational factor (SR) related to perceived social support and social self-efficacy, and a body attitudes and social media exposure factor (BAME). Using the total sample, multinomial logistic regression was applied to estimate their impact on the BWC, and gender-specific models were compared.
Half (48.6%) of the adolescents correctly estimated their body weight, 31.0% overestimated it (girls 43.9%, boys 17.1%), and 20.0% underestimated it (boys 37.2%, girls 9.0%). Overestimation of body weight concerns 48.0% of normal weight girls, 50.0% of underweight girls, and 21.3% and 32.1% of normal weight and underweight boys, respectively. The percentage of normal weight (34.4%), and overweight and obese (30.8%) boys who underestimated their body weight was three times higher than the respective percentages of girls that underestimated their weight (9.0% and 11.9%). The SR factor protected adolescents from both underestimation (only in girls) and overestimation in the total sample (OR 0.74, 95%CI 0.68-0.81) and both genders. BAME increased this risk of overestimation in both genders (OR = 1.83, 95%CI 1.67-2.0), and the risk of underestimation among boys.
Prevention programmes should include a wide range of psychosocial factors to improve BWC among adolescents.
摘要：
体重一致性（BWC）对青少年健康有影响。这项研究的主要目的是研究BWC的分布及其与六个社会心理因素的关系。
来自学龄儿童健康行为研究的N=3508名15岁和17岁青少年（52.4％的女孩）的代表性样本，2017/2018年在波兰进行，被使用。根据自我报告的BMI和对体重的主观评估来定义BWC组：（1）正确的感知；（2）高估，和（3）。低估了。主成分分析(PCA)提取了以下两个因素:与感知社会支持和社会自我效能感相关的社会关系因素(SR),以及身体态度和社交媒体曝光因子(BAME)。使用总样本，多元逻辑回归被用来估计它们对BWC的影响，和性别特异性模型进行了比较。
一半（48.6％）的青少年正确估计了自己的体重，31.0%的人高估了它(女孩43.9%，男孩17.1%)，20.0%的人低估了这一点(男孩37.2%，女孩9.0%)。体重高估涉及正常体重女孩的48.0％，50.0%的体重不足的女孩,和21.3%和32.1%的正常体重和体重不足的男孩,分别。正常体重的百分比（34.4％），超重和肥胖(30.8%)的男孩低估了自己的体重，比低估了自己体重的女孩(9.0%和11.9%)的比例高出三倍。SR因子可保护青少年在总样本（OR0.74，95CI0.68-0.81）和两种性别中免受低估（仅在女孩中）和高估。BAME增加了两种性别的高估风险（OR=1.83，95CI1.67-2.0），以及男孩被低估的风险。
预防计划应包括广泛的社会心理因素，以改善青少年的《生物武器公约》。
来自学龄儿童健康行为研究的N=3508名15岁和17岁青少年（52.4％的女孩）的代表性样本，2017/2018年在波兰进行，被使用。根据自我报告的BMI和对体重的主观评估来定义BWC组：（1）正确的感知；（2）高估，和（3）。低估了。主成分分析(PCA)提取了以下两个因素:与感知社会支持和社会自我效能感相关的社会关系因素(SR),以及身体态度和社交媒体曝光因子(BAME)。使用总样本，多元逻辑回归被用来估计它们对BWC的影响，和性别特异性模型进行了比较。
一半（48.6％）的青少年正确估计了自己的体重，31.0%的人高估了它(女孩43.9%，男孩17.1%)，20.0%的人低估了这一点(男孩37.2%，女孩9.0%)。体重高估涉及正常体重女孩的48.0％，50.0%的体重不足的女孩,和21.3%和32.1%的正常体重和体重不足的男孩,分别。正常体重的百分比（34.4％），超重和肥胖(30.8%)的男孩低估了自己的体重，比低估了自己体重的女孩(9.0%和11.9%)的比例高出三倍。SR因子可保护青少年在总样本（OR0.74，95CI0.68-0.81）和两种性别中免受低估（仅在女孩中）和高估。BAME增加了两种性别的高估风险（OR=1.83，95CI1.67-2.0），以及男孩被低估的风险。
预防计划应包括广泛的社会心理因素，以改善青少年的《生物武器公约》。
