Evidence map›Paper›PMID 37984950›Full record

ArticleBMJ open2023

Chronotypes and their association with sleep quality among Chinese college students of Anhui Province: a cross-sectional study.

Xin Tong, Mei-Mei Gao, Liu Zhang, Jian-Gen Song, Ying Feng, Yujing Tao, Li-Jun Zhu, Li-Ying Wen, Yue-Long Jin, Wei-Wei Chang

Abstract read
In one paragraph

Article in BMJ open, 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
–field-weighted citation impact
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.

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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

10 authors.

Xin Tong *Department of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Mei-Mei Gao *Department of Ideological and Political Education, Anhui Medical College, Hefei, Anhui, China.
Liu Zhang *Department of Hospital Infection Management Office, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, China.
Jian-Gen SongDepartment of Nutrition and Food Hygiene,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Ying FengDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Yujing TaoDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Li-Jun ZhuDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Li-Ying WenDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China xiaowei8601@163.com jinyl0803@wnmc.edu.cn 578203639@qq.com.
Yue-Long JinDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China xiaowei8601@163.com jinyl0803@wnmc.edu.cn 578203639@qq.com.ORCID 0000-0001-5019-063X
Wei-Wei ChangDepartment of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China xiaowei8601@163.com jinyl0803@wnmc.edu.cn 578203639@qq.com.ORCID 0000-0002-8146-1815

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo describe the prevalence of chronotype and sleep quality among Chinese college students and explore the relationship between chronotype and sleep quality.

designA cross-sectional study.

settingFour colleges and universities in Anhui, China, between November and December 2020.

participantsA total of 4768 college students were recruited using a stratified, multistage, cluster sampling survey. OUTCOME MEASURES: Morningness-Eveningness Questionnaire 19 was used to determine the chronotype of the students and the Pittsburgh Sleep Quality Index (PSQI) was used to measure their sleep quality. The multiple logistic regression model was used to explore the potential association between chronotype and sleep quality.

resultsThe self-reported proportions of evening-type (E-type), neutral-type and morning-type among college students were 51.17%, 45.14% and 3.69%, respectively. The mean PSQI score was 4.97±2.82 and the prevalence of poor sleep quality was 18.2%. After adjusting the covariates by multiple logistic regression analysis, E-type was positively associated with subjective sleep quality (OR=1.671, 95% CI 1.414 to 1.975), sleep latency (OR=1.436, 95% CI 1.252 to 1.647), sleep duration (OR=2.149, 95% CI 1.506 to 3.067), habitual sleep efficiency (OR=1.702, 95% CI 1.329 to 2.180), daytime dysfunction (OR=1.602, 95% CI 1.412 to 1.818) and overall poor sleep quality (OR=1.866, 95% CI 1.586 to 2.196).

conclusionsCollege students mainly exhibited E-type, and an elevated prevalence of poor sleep quality existed among these students. The E-type was positively associated with poor sleep quality.

Indexed as

SleepSleep Initiation and Maintenance DisordersChronotypeCircadian RhythmCross-Sectional StudiesHumansSleep QualityStudentsSurveys and Questionnairesadolescentpublic healthsleep medicine

Identifiers

PMID37984950
PMCPMC10660650

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LicenceCC BY-NC
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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.