Clum Gretchen A, Rice Janet C, Broussard Marsha, Johnson Carolyn C, Webber Larry S
Department of Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2301, New Orleans, LA, 70112, USA,
J Behav Med. 2014 Aug;37(4):577-86. doi: 10.1007/s10865-013-9526-5. Epub 2013 Aug 11.
This article explores cross-sectional associations between depressive symptoms and body mass index (BMI) in women working in schools in the Greater New Orleans area. Self-efficacy for eating and exercise, eating styles, and exercise are examined as potential pathways. This is a secondary data analysis of 743 women who were participating in a workplace wellness randomized controlled trial to address environmental factors influencing eating and exercise behaviors using baseline data prior to the intervention. BMI was the primary outcome examined. Path analysis suggested that increased depressive symptoms were associated with increased BMI in women. Indirect effects of depressive symptoms on BMI were found for increased healthy eating self-efficacy, increased emotional eating, and decreased exercise self-efficacy. The association between greater healthy eating self efficacy and BMI was unexpected, and may indicate a suppressor effect of eating self-efficacy in the relationship between depressive symptoms and BMI in women. The findings suggest the importance of depressive symptoms to BMI in women. Targets for interventions to reduce BMI include targeting depressive symptoms and related sequelae including self-efficacy for exercise, and emotional eating. Further investigation of eating self-efficacy and BMI are recommended with particular attention to both efficacy for health eating and avoidance of unhealthy foods.
本文探讨了大新奥尔良地区学校女教职工的抑郁症状与体重指数（BMI）之间的横断面关联。研究将饮食和运动的自我效能感、饮食方式及运动作为潜在途径进行了考察。这是一项对743名女性进行的二次数据分析，这些女性参与了一项职场健康随机对照试验，该试验利用干预前的基线数据来研究影响饮食和运动行为的环境因素。BMI是此次分析的主要考察指标。路径分析表明，女性抑郁症状加重与BMI升高有关。研究发现，抑郁症状通过提高健康饮食自我效能感、增加情绪化饮食及降低运动自我效能感对BMI产生间接影响。健康饮食自我效能感增强与BMI之间的关联出人意料，这可能表明饮食自我效能感在女性抑郁症状与BMI的关系中具有抑制作用。研究结果表明抑郁症状对女性BMI具有重要影响。降低BMI的干预目标包括针对抑郁症状及相关后果，如运动自我效能感和情绪化饮食。建议进一步研究饮食自我效能感与BMI之间的关系，尤其要关注健康饮食的效能及对不健康食品的规避。
