Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, China.
Renji College, Wenzhou Medical University, Wenzhou, China.
Front Public Health. 2022 Oct 6;10:957409. doi: 10.3389/fpubh.2022.957409. eCollection 2022.
Studies on the association between sleep behavior and health often ignored the confounding effects of biorhythm-related factors. This study aims to explore the independent and joint effects of sleep duration and sleep quality on suboptimal self-rated health (SRH) in medical students.
Cross-sectional study. Proportional stratified cluster sampling was used to randomly recruit students from various medical specialties at a medical university in eastern China. Our questionnaire mainly included information on basic demographic characteristics, SRH, sleep behavior, and biorhythm-related factors. The independent and joint effects of sleep duration and sleep quality on suboptimal SRH were assessed by logistic regression after controlling for potential confounders.
Of 1,524 medical students (mean age = 19.9 years, SD = 1.2 years; 59.1% female), 652 (42.8%) had suboptimal SRH. Most medical students (51.5%) slept for 7 h/night, followed by ≥8 (29.1%) and ≤ 6 h (19.4%). After adjusting for basic demographic characteristics and biorhythm-related factors, compared with students who slept for ≥8 h/night, the adjusted (95%) for those who slept 7 and ≤ 6 h/night were 1.36 (1.03, 1.81) and 2.28 (1.60, 3.26), respectively ( < 0.001 for trend); compared with those who had good sleep quality, the adjusted (95%CI) for those who had fair and poor sleep quality were 4.12 (3.11, 5.45) and 11.60 (6.57, 20.46), respectively ( < 0.001 for trend). Further, compared with those who slept for ≥8 h/night and good sleep quality, those who slept ≤ 6 h and poor sleep quality had the highest odds of suboptimal SRH ( 24.25, 95% 8.73, 67.34).
Short sleep and poor sleep quality were independently and jointly associated with higher odds of suboptimal SRH among medical students.
研究睡眠行为与健康之间的关系的研究往往忽略了与生物节律相关因素的混杂影响。本研究旨在探讨睡眠时间和睡眠质量对医学生亚健康自评健康状况的独立和联合影响。
横断面研究。采用比例分层整群抽样方法，随机抽取中国东部一所医科大学的多个医学专业学生。我们的问卷主要包括基本人口统计学特征、亚健康自评健康状况、睡眠行为和与生物节律相关的因素信息。在控制潜在混杂因素后，采用 logistic 回归评估睡眠时间和睡眠质量对亚健康自评健康状况的独立和联合影响。
在 1524 名医学生中（平均年龄 19.9 岁，标准差 1.2 岁；59.1%为女性），有 652 人（42.8%）亚健康自评健康状况不佳。大多数医学生（51.5%）每晚睡眠时间为 7 小时，其次是≥8 小时（29.1%）和≤6 小时（19.4%）。在校正基本人口统计学特征和与生物节律相关的因素后，与每晚睡眠时间≥8 小时的学生相比，每晚睡眠时间为 7 小时和≤6 小时的学生的调整比值比（95%置信区间）分别为 1.36（1.03，1.81）和 2.28（1.60，3.26）（趋势检验<0.001）；与睡眠质量良好的学生相比，睡眠质量一般和较差的学生的调整比值比（95%CI）分别为 4.12（3.11，5.45）和 11.60（6.57，20.46）（趋势检验<0.001）。此外，与每晚睡眠时间≥8 小时和睡眠质量良好的学生相比，每晚睡眠时间≤6 小时和睡眠质量较差的学生亚健康自评健康状况不佳的可能性最高（比值比 24.25，95%置信区间 8.73，67.34）。
睡眠时间短和睡眠质量差与医学生亚健康自评健康状况不佳的风险独立且共同相关。
