O'Leary Daniel, Gross James J, Rehkopf David H
Department of Psychology, Stanford University, Stanford, CA USA.
School of Medicine, Stanford University, Stanford, CA USA.
Affect Sci. 2020 May 29;1(2):97-106. doi: 10.1007/s42761-020-00010-0. eCollection 2020 Jun.
The primary objective of this study was to examine whether psychological distress mediates the relationship between income and increases in body mass index in adolescent girls. To answer this question, we analyzed data from 2379 participants in the longitudinal NHLBI Growth and Health Study using regularized regression and path analysis. The exposure was household income at age 9-10 and the outcome was body mass index at age 18-19. Income negatively predicted psychological distress, which in turn predicted psychological and behavioral factors that were associated with increases in body mass index. Overall, psychological distress and related variables accounted for around 20% of the relationship between income and increases in body mass index in adolescent girls. The impacts of income on a complex constellation of psychological risks for obesity support the evaluation of income support policies for reducing economic inequalities in obesity. Obesity reduction programs focused on changing psychological distress should be developed with consideration of the household economic environment.
本研究的主要目的是检验心理困扰是否在少女收入与体重指数增加之间的关系中起中介作用。为回答这个问题，我们使用正则回归和路径分析，对纵向的美国国立心肺血液研究所生长与健康研究中的2379名参与者的数据进行了分析。暴露因素是9至10岁时的家庭收入，结果变量是18至19岁时的体重指数。收入对心理困扰有负向预测作用，而心理困扰反过来又预测了与体重指数增加相关的心理和行为因素。总体而言，心理困扰及相关变量约占少女收入与体重指数增加之间关系的20%。收入对肥胖相关的一系列复杂心理风险的影响，支持对旨在减少肥胖方面经济不平等的收入支持政策进行评估。应在考虑家庭经济环境的情况下，制定侧重于改变心理困扰的肥胖减少计划。
