Evidence map›Paper›PMID 38114908›Full record

ArticleBMC geriatrics2023

Associations of daytime napping and nighttime sleep quality with depressive symptoms in older Chinese: the Guangzhou biobank cohort study.

Weisen Zhang, Baijing Zhou, Chaoqiang Jiang, Yali Jin, Tong Zhu, Feng Zhu, Kar Keung Cheng, Tai Hing Lam, Lin Xu

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

Weisen Zhang *Molecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Baijing Zhou *Molecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Chaoqiang JiangMolecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Yali JinMolecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Tong ZhuMolecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Feng ZhuMolecular Epidemiology Research Center, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, Guangdong, China.
Kar Keung ChengInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Tai Hing LamSchool of Public Health, The University of Hong Kong, Hong Kong, China.
Lin XuSchool of Public Health, Sun Yat-sen University, Guangzhou, China. xulin27@mail.sysu.edu.cn.
Twelfth Guangzhou City People's Hospital · CNSun Yat-sen University · CNUniversity of Birmingham · GBUniversity of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPoor sleep quality has been linked to depression in older adults, but results of the association between daytime napping and depression remains limited and conflicting. Moreover, whether the association of daytime napping with depression varies by nighttime sleep quality is unclear. Hence, we examined the associations of daytime napping and nighttime sleep quality with depressive symptoms in older Chinese.

methodsA total of 16,786 participants aged ≥50 from the Guangzhou Biobank Cohort Study second-round examination (2008-2012) were included in this cross-sectional study. Geriatric Depression Scale (GDS-15), Pittsburgh Sleep Quality Index (PSQI), napping and demographic data were collected by face-to-face interview using a computerized questionnaire. Logistic regression was used to calculate odds ratio (OR) of depressive symptoms for napping and sleep quality.

resultsThe prevalence of depressive symptoms (GDS score > 5) and poor global sleep quality (PSQI score ≥ 6) was 5.3 and 31.9%, respectively. Compared to non-nappers, nappers showed significantly higher odds of depressive symptoms, with OR (95% confidence interval (CI)) being 1.28 (1.11-1.49). The odds of depressive symptoms for daytime napping varied by nighttime sleep quality (P for interaction = 0.04). In good-quality sleepers, compared to non-nappers, nappers had significantly higher odds of depressive symptoms, with OR (95% CI) being 1.57 (1.23-2.01), whereas no association was found in poor-quality sleepers (OR = 1.13, 0.94-1.36).

conclusionNapping was associated with higher odds of depressive symptoms in older people, and the association was stronger in good-quality sleepers.

Indexed as

DepressionSleep Initiation and Maintenance DisordersAgedBiological Specimen BanksChinaCohort StudiesCross-Sectional StudiesHumansSleepSleep QualityDaytime nappingDepressive symptomsGuangzhou biobank cohort studyNighttime sleep qualityOlder people

Identifiers

PMID38114908
PMCPMC10731710
OpenAlexW4389946381

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.