Association between sleep duration from midlife to late life and the risk of depressive symptoms: the Singapore Chinese Health Study.

IF 3.9 3区 医学 Q1 PSYCHIATRY BJPsych Open Pub Date : 2024-10-11 DOI:10.1192/bjo.2024.772
Huiqi Li, Bee Choo Tai, An Pan, Woon-Puay Koh
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Abstract

Background: The prospective association between sleep duration and the development of late-life depressive symptomology is unclear.

Aims: To investigate sleep duration from midlife to late life in relation to risk of depressive symptoms in late life.

Method: A total of 14 361 participants from the Singapore Chinese Health Study were included in the present study. Daily sleep duration was self-reported at baseline (mean age of 52.4 years; 1993-98), follow-up 2 (mean age of 65.2 years; 2006-10) and follow-up 3 (mean age of 72.5 years; 2014-16) interviews. Depressive symptoms were evaluated using the Geriatric Depression Scale at follow-up 3 interviews. Modified Poisson regression models were performed to estimate relative risks and 95% confidence intervals of late-life depressive symptoms in relation to sleep duration at baseline and the two follow-up interviews.

Results: Compared with sleeping 7 h per day, a short sleep duration of ≤5 h per day at baseline (i.e. midlife) was related to a higher risk of depressive symptoms (relative risk 1.10, 95% CI 1.06-1.15), and this risk was not affected by subsequent prolongation of sleep. Conversely, a long sleep duration of ≥9 h per day at baseline was not related to risk of depressive symptoms. At follow-up 3 (i.e. late life), both short sleep (relative risk 1.20, 95% CI 1.16-1.25) and long sleep (relative risk 1.12, 95% CI 1.07-1.18) duration were cross-sectionally associated with depressive symptoms.

Conclusion: Short sleep duration in midlife, regardless of subsequent prolongation, is associated with an increased risk of depression in late life. Contrariwise, both short and long sleep duration in late life co-occur with depressive symptoms.

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从中年到晚年的睡眠时间与抑郁症状风险之间的关系:新加坡华人健康研究。
背景:睡眠时间与晚年抑郁症状发展之间的前瞻性关联尚不明确:目的:调查从中年到晚年的睡眠时间与晚年抑郁症状风险的关系:本研究共纳入了14 361名新加坡华人健康研究(Singapore Chinese Health Study)的参与者。每日睡眠时间在基线(平均年龄 52.4 岁,1993-98 年)、随访 2(平均年龄 65.2 岁,2006-10 年)和随访 3(平均年龄 72.5 岁,2014-16 年)访谈中进行自我报告。在随访 3 次时使用老年抑郁量表评估抑郁症状。我们使用修正的泊松回归模型估算了晚年抑郁症状与基线和两次随访时睡眠时间的相对风险和95%置信区间:与每天睡 7 小时相比,基线时(即中年时)每天睡眠时间少于 5 小时的人出现抑郁症状的风险较高(相对风险为 1.10,95% CI 为 1.06-1.15),而且这种风险不受随后睡眠时间延长的影响。相反,基线睡眠时间长(每天≥9小时)与抑郁症状风险无关。在随访 3(即晚年)时,睡眠时间短(相对风险为 1.20,95% CI 为 1.16-1.25)和睡眠时间长(相对风险为 1.12,95% CI 为 1.07-1.18)都与抑郁症状横截面相关:结论:中年时睡眠时间短,无论后来是否延长,都与晚年抑郁风险增加有关。相反,晚年睡眠时间短和睡眠时间长都与抑郁症状并存。
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来源期刊
BJPsych Open
BJPsych Open Medicine-Psychiatry and Mental Health
CiteScore
6.30
自引率
3.70%
发文量
610
审稿时长
16 weeks
期刊介绍: Announcing the launch of BJPsych Open, an exciting new open access online journal for the publication of all methodologically sound research in all fields of psychiatry and disciplines related to mental health. BJPsych Open will maintain the highest scientific, peer review, and ethical standards of the BJPsych, ensure rapid publication for authors whilst sharing research with no cost to the reader in the spirit of maximising dissemination and public engagement. Cascade submission from BJPsych to BJPsych Open is a new option for authors whose first priority is rapid online publication with the prestigious BJPsych brand. Authors will also retain copyright to their works under a creative commons license.
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