Abstract
Background: Depression is a common mental illness. Previous studies suggested that health conditions and lifestyle factors were associated with depression. However, only few studies have explored the risk factors of depression in a large representative sample of the general population in the world.Methods: A population-based cross-sectional survey was conducted in the 2006 survey and 2009 survey in Qingdao, China. The participants with insufficient information were excluded: Zung score, body mass index (BMI), diabetes items, physical activity, smoking, or drinking. Finally, a total of 3,300 participants were included in this analysis. The category of depression was used in the Zung self-rating depression scale (ZSDS). The associations between different indicators of health conditions (diabetic status, BMI), lifestyle factors (physical activity, smoking, and alcohol consumption), and depression were assessed by the logistic regression model.Results: The mean Zung scores for all participants, male participants, and female participants were 29.73 ± 7.57, 28.89 ± 7.30, 30.30 ± 7.70, respectively. In all participants, those who were pre-diabetes status (OR: 1.53, 95% CI: 1.04–2.27), and irregular physical activity (OR: 0.39, 95% CI: 0.17–0.89) had an increased risk of depression. In man, the analysis showed an increased risk of depression those with pre-diabetes (OR: 2.49, 95% CI: 1.25–4.97), previously diagnosed diabetes (OR: 4.44, 95% CI: 1.58, 12.48), and in those irregular activities (OR: 0.07, 95% CI: 0.01–0.61). In women, those who were underweight (OR: 5.66, 95% CI: 1.04–30.71) had a greater risk of depression.Conclusions: These results suggested that health conditions and lifestyle factors were the potential risk factors for depression. Men with pre-diabetes, previously diagnosed diabetes, and irregular activity had an increased risk for depression; women with underweight status had a higher risk for depression.
Highlights
Depression is a common mental illness that has a substantial impact on one’s private and public life
The results showed that health conditions and lifestyle factors were the important risk factors of depression
The previous studies mainly investigated the association between diabetes and depression, and results showed that the prevalence of depression was significantly higher risk in subjects with diabetes compared with the non-diabetic population [16,17,18,19]
Summary
Depression is a common mental illness that has a substantial impact on one’s private and public life. Gender differences have observed in risk factors: having a chronic disease and physical inactivity were risk factors for depression in men, poor perceived health and a BMI of 25 or more were risk factors for depression in women [11]. Few of these studies have explored the risk factors of depression in a large representative sample of the general population. Only few studies have explored the risk factors of depression in a large representative sample of the general population in the world
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