Department of Psychology, Truman State University, Kirksville, MO, USA.
Psychiatry Res. 2018 Jun;264:254-259. doi: 10.1016/j.psychres.2018.03.023. Epub 2018 Apr 5.
Past research established that obesity increases risk for development of depression, and depression increases risk for development of obesity. The current study tested physical impairment (difficulty with instrumental activities of daily living), social dysfunction (low social support and high social strain), and emotional eating (using food to cope with stress) as mediators of the bidirectional, longitudinal relations between depression and obesity. A national sample of mid-life adults in the United States (N = 7108) was assessed at three time points over 18 years. Depression predicted increases in obesity, and obesity predicted increases in depression, for women but not for men. Among women, path analyses revealed that physical impairment, social dysfunction, and emotional eating mediated development of obesity from depression, and that physical impairment and emotional eating mediated development of depression from obesity. These results suggest that prevention or treatment of obesity-linked depression and depression-linked obesity in women may need to address multiple connections between these disorders.
过去的研究已经证实，肥胖会增加患抑郁症的风险，而抑郁症会增加肥胖的风险。本研究测试了身体损伤（日常活动工具性障碍）、社会功能障碍（低社会支持和高社会压力）和情绪性进食（用食物应对压力）作为抑郁和肥胖之间双向、纵向关系的中介因素。美国中年成年人的全国样本（N=7108）在 18 年内进行了三次评估。对于女性，抑郁预测肥胖的增加，肥胖预测抑郁的增加，而对于男性则没有这种预测关系。在女性中，路径分析显示，身体损伤、社会功能障碍和情绪性进食中介了从抑郁到肥胖的发展，而身体损伤和情绪性进食中介了从肥胖到抑郁的发展。这些结果表明，预防或治疗女性肥胖相关的抑郁症和抑郁症相关的肥胖症可能需要解决这些疾病之间的多种联系。
