Department of Epidemiology and Health statistics,School of Public Health, Wannan Medical College, Wuhu, Anhui, China.
Department of Ideological and Political Education, Anhui Medical College, Hefei, Anhui, China.
BMJ Open. 2023 Nov 19;13(11):e076782. doi: 10.1136/bmjopen-2023-076782.
To describe the prevalence of chronotype and sleep quality among Chinese college students and explore the relationship between chronotype and sleep quality.
A cross-sectional study.
Four colleges and universities in Anhui, China, between November and December 2020.
A total of 4768 college students were recruited using a stratified, multistage, cluster sampling survey.
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.
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).
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.
描述中国大学生的昼夜型和睡眠质量的流行情况，并探讨昼夜型与睡眠质量之间的关系。
横断面研究。
2020 年 11 月至 12 月，中国安徽的四所高校。
采用分层、多阶段、聚类抽样调查，共招募了 4768 名大学生。
使用 19 项 Morningness-Eveningness Questionnaire（MEQ）确定学生的昼夜型，使用 Pittsburgh Sleep Quality Index（PSQI）评估他们的睡眠质量。使用多因素逻辑回归模型探讨昼夜型与睡眠质量之间的潜在关联。
大学生自我报告的晚型（E 型）、中间型和早型的比例分别为 51.17%、45.14%和 3.69%。PSQI 总分的平均值为 4.97±2.82，睡眠质量差的发生率为 18.2%。通过多因素逻辑回归分析调整了混杂因素后，E 型与主观睡眠质量（OR=1.671，95%置信区间 1.414 至 1.975）、睡眠潜伏期（OR=1.436，95%置信区间 1.252 至 1.647）、睡眠时间（OR=2.149，95%置信区间 1.506 至 3.067）、习惯性睡眠效率（OR=1.702，95%置信区间 1.329 至 2.180）、日间功能障碍（OR=1.602，95%置信区间 1.412 至 1.818）和总体睡眠质量差（OR=1.866，95%置信区间 1.586 至 2.196）呈正相关。
大学生主要表现为 E 型，且这些学生中存在较高的睡眠质量差发生率。E 型与睡眠质量差呈正相关。
