Chronotypes and Their Association with Sleep Quality Among Chinese College Students of Anhui Province: a Cross-sectional Study

Overview

Journal BMJ Open

Specialty General Medicine

Date 2023 Nov 20

PMID 37984950

Authors

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

Affiliations

Soon will be listed here.

Abstract

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

Design: A cross-sectional study.

Setting: Four colleges and universities in Anhui, China, between November and December 2020.

Participants: A 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.

Results: The 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).

Conclusions: College 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.

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