An epidemiological study on relation between sleep problems and depression

我们的目的是澄清日本普通成年人中抑郁症和睡眠障碍之间的关系。研究人员分析了2532名日本普通成年人的数据。流行病学研究中心抑郁量表（CES-D）用于评估抑郁症的患病率。抑郁症患病率估计为6.0%（男性5.1%，女性6.7%）。入睡困难（DIS）、维持睡眠困难（DMS）和清晨醒来困难（EMA）的患病率分别为14.8%、26.6%和11.7%，32.7%的样本报告至少有其中一种。DIS、EDS和IRS与不良心理健康状况独立相关。短睡眠时间（<6小时）和短TIB（<6小时）与抑郁症状显著相关。我们假设TIB是一种可改变的睡眠习惯，可能是改善睡眠卫生作为预防抑郁症手段的重要目标。

We aimed to clarify the association between depression and sleep disturbances among Japanese general adult population. Data from 2,532 individuals from Japanese general adult population were analyzed. The Center for Epidemiologic Studies Depression Scale (CES-D) was used to assess the prevalence of depression. The prevalence of depression was estimated to be 6.0% (men 5.1%, and women 6.7%). The prevalence of difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), and early morning awakenings (EMA) was 14.8%, 26.6%, and 11.7%, respectively, and 32.7% of the sample reported at least one of them. DIS, EDS, and IRS were independently associated with poor perceived mental health status. Both short sleep duration (<6 h) and short TIB (<6 h) were significantly associated with symptoms of depression. We postulate that TIB, a modifiable sleep habit, may be an important target for improvement of sleep hygiene as a means of preventing depression.