中年及以上人群的体重指数与抑郁症状。
Body mass index and depressive symptoms in middle aged and older adults.
机构信息
Department of Healthcare Management, Eulji University, Seongnam, Korea.
Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, the Catholic University of Korea, Seoul, Korea.
出版信息
BMC Public Health. 2015 Mar 31;15:310. doi: 10.1186/s12889-015-1663-z.
BACKGROUND
The relationship between weight problems and depression has been the focus of many studies; however, results from these studies vary. The purpose of this study is to describe the association between depression and BMI using data from a national sample of middle aged and older Koreans and to examine whether gender moderates the relationship between depression and weight.
METHODS
We used data from the Korean Longitudinal Study of Aging (KLoSA). Of the 7,920 respondents that participated in KLoSA in 2010, 7,672 adults aged between 50 and 102 years were included in the final analysis. The relationship between depression and obesity status was examined in both the full sample and in sub-samples stratified by gender. The observed U-shaped association between obesity status and CES-D score was tested by regressing CES-D score on linear and quadratic terms of BMI scores.
RESULTS
The distribution of CES-D scores by respondents' obesity status (i.e., underweight, normal weight, overweight, obese and severely obese) showed a U-shaped association. Specifically, the highest CES-D scores were found in underweight individuals; this was followed by the severely obese and obese groups in the full sample and in gender-specific subsamples. The lowest CES-D scores were found in the overweight group when considering the entire population and males alone and in the normal weight group for females. This U-shaped association between CES-D and obesity status was confirmed by a model in which CES-D scores were regressed on BMI scores and other covariates.
CONCLUSIONS
This study found a U-shaped association between BMI and levels of depressive symptoms among adults in Korea overall and also within each gender. Specifically, the highest level of depressive symptoms was found among the underweight, followed by the severely obese and then the obese. Slightly different patterns between male and female adults were found regarding the weight status associated with the fewest depressive symptoms.
背景
体重问题与抑郁之间的关系一直是许多研究的焦点；然而，这些研究的结果各不相同。本研究旨在使用韩国中年和老年人的全国样本数据描述抑郁与 BMI 之间的关联，并检验性别是否调节抑郁与体重之间的关系。
方法
我们使用了韩国老龄化纵向研究（KLoSA）的数据。在 2010 年参加 KLoSA 的 7920 名受访者中，最终分析纳入了 7672 名年龄在 50 至 102 岁之间的成年人。在全样本和按性别分层的子样本中，检查了抑郁与肥胖状况之间的关系。通过将 CES-D 评分回归 BMI 评分的线性和二次项，检验肥胖状况与 CES-D 评分之间的观察到的 U 形关联。
结果
根据受访者的肥胖状况（即消瘦、正常体重、超重、肥胖和重度肥胖），CES-D 评分的分布呈 U 形关联。具体而言，消瘦个体的 CES-D 评分最高；其次是全样本和按性别分层的子样本中的重度肥胖和肥胖组。在考虑整个人群和男性时，超重组的 CES-D 评分最低，而女性则为正常体重组。CES-D 与肥胖状况之间的这种 U 形关联在将 CES-D 评分回归 BMI 评分和其他协变量的模型中得到了证实。
结论
本研究发现，韩国成年人总体以及每个性别中，BMI 与抑郁症状水平之间呈 U 形关联。具体而言，消瘦个体的抑郁症状最严重，其次是重度肥胖和肥胖个体。在与抑郁症状最少相关的体重状况方面，男女成年人之间存在略微不同的模式。
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