Department of Child and Adolescent Health, School of Public Health, Bengbu Medical College, Bengbu 233030, Anhui, China.
Institute of Child and Adolescent Health, School of Public Health, Peking University Health Science Center, Beijing 100191, China.
Biomed Environ Sci. 2019 Sep;32(9):639-646. doi: 10.3967/bes2019.083.
The aim of this study was to analyze the mediating effect of body dissatisfaction in correlation between obesity and dietary behavior changes for weight loss (DBCWL).
A total of 680 primary and middle school students were included in this study. Their body height, weight, and waistline were effectively measured, and they were also evaluated to assess their body dissatisfaction, perception of dietary behaviors, and DBCWL. The correlation among these factors was analyzed using mediating effect models.
The prevalence of overweight/obesity and abdominal obesity was significantly higher in males than in females (P < 0.05). Overweight/obesity, abdominal obesity, and body dissatisfaction significantly increased the risk for DBCWL (OR = 2.57, 2.77, and 1.95, respectively). Overweight/obesity and abdominal obesity significantly increased the risk for body dissatisfaction (OR = 6.00 and 4.70, respectively). Significant mediating effects of body dissatisfaction were observed in correlation between overweight/obesity and DBCWL and between abdominal obesity and DBCWL (OR = 2.20 and 1.92, respectively; P < 0.05), and the proportions of mediating effects among the total effects were 48.89% and 46.60%, respectively.
Body dissatisfaction might play an important mediating effect in association between DBCWL and obesity, which indicates that guiding children to correctly recognize their body might be more conducive than promoting obese children toward weight loss through dietary behavior changes.
本研究旨在分析体貌不满在肥胖与减肥相关饮食行为改变(DBCWL)之间的中介作用。
本研究共纳入 680 名中小学生,有效测量其身高、体重和腰围,评估其体貌不满、饮食行为感知和 DBCWL。采用中介效应模型分析这些因素之间的相关性。
男性超重/肥胖和腹型肥胖的患病率明显高于女性(P < 0.05)。超重/肥胖、腹型肥胖和体貌不满显著增加 DBCWL 的风险(OR = 2.57、2.77 和 1.95)。超重/肥胖和腹型肥胖显著增加体貌不满的风险(OR = 6.00 和 4.70)。体貌不满在超重/肥胖与 DBCWL 之间以及腹型肥胖与 DBCWL 之间存在显著的中介效应(OR = 2.20 和 1.92;P < 0.05),中介效应在总效应中的比例分别为 48.89%和 46.60%。
体貌不满可能在 DBCWL 与肥胖之间的关联中发挥重要的中介作用,这表明指导儿童正确认识自己的身体可能比通过饮食行为改变促进肥胖儿童减肥更有利。