Department of Epidemiology and Health Statistics, Qingdao University Medical College, Qingdao 266000, China.
Department of Primary Care, Qingdao Municipal Hospital, Qingdao 266000, China.
Nutrients. 2022 Jul 25;14(15):3047. doi: 10.3390/nu14153047.
This cross-sectional study aimed to explore the association between smoking cessation and depressive symptoms and investigate the mediating role of dietary quality.
We used data from the 2007-2014 National Health and Nutrition Examination Survey. Logistic regression models were applied to evaluate the associations between smoking cessation and depressive symptoms. Stratified analysis was performed according to different HEI levels. We examined the mediating role of HEI in the relationship between depressive symptoms and cessation duration using the Karlson-Holm-Breen (KHB) method.
A total of 20,004 participants aged 20 years or older were included in the analyses. There were significant correlations between years for smoking cessation and depressive symptoms (OR: 0.985, 95% CI: 0.971~0.999) after adjusting for correlation covariables. A likelihood ratio test showed that there was an interaction between smoking cessation and diet quality ( = 0.047). In the mediation analysis, we estimated that the increase in HEI scores after quitting smoking could explain the 6.91% decline in depressive symptoms.
In this cross-sectional study, smoking cessation showed a protective effect on depressive symptoms and that diet quality can influence and mediate this association.
本横断面研究旨在探讨戒烟与抑郁症状之间的关联，并探究饮食质量的中介作用。
我们使用了 2007-2014 年全国健康与营养调查的数据。采用 logistic 回归模型评估戒烟与抑郁症状之间的关联。根据不同的 HEI 水平进行分层分析。我们使用 Karlson-Holm-Breen（KHB）方法检验了 HEI 在抑郁症状与戒烟持续时间之间的关系中的中介作用。
共纳入 20004 名年龄在 20 岁及以上的参与者。调整相关协变量后，戒烟年限与抑郁症状之间存在显著相关性（OR：0.985，95%CI：0.971~0.999）。似然比检验显示，戒烟与饮食质量之间存在交互作用（ = 0.047）。在中介分析中，我们估计戒烟后 HEI 评分的增加可以解释抑郁症状下降 6.91%。
在这项横断面研究中，戒烟对抑郁症状具有保护作用，而饮食质量可以影响并介导这种关联。
