Laboratory of Behavioral Health Promotion, Department of Health Promotion Medicine, Graduate School of Medicine, Osaka University, Toyonaka, Japan.
Health and Counseling Center, Osaka University, 1-17 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan.
Sleep Breath. 2024 Aug;28(4):1839-1846. doi: 10.1007/s11325-024-03014-3. Epub 2024 Apr 19.
The aim of this study was to clarify an association between short sleep duration and smoking initiation.
Participants eligible for this retrospective cohort study were university students who were admitted to a single national university in Japan between 2007 and 2015. Baseline sleep duration and smoking status were measured using general questionnaires at health checkups at admission. During a 6-year observation period, smoking initiation was assessed using general questionnaires at annual health checkups. Cox proportional hazards models adjusted for clinically relevant factors were used to assess the association between sleep duration and smoking initiation.
Of 17,493 men, including 540, 5,568, 8,458, 2,507, and 420 men with sleep duration of < 5, 5-6, 6-7, 7-8, and ≥ 8 h, respectively, smoking initiation was observed in 16.1%, 12.5%, 11.2%, 10.0%, and 11.7%, respectively, during a median observation period of 3.0 years. Men with shorter sleep duration were at a higher risk of smoking initiation (adjusted hazard ratio 1.49 [95% confidence interval 1.19-1.85], 1.11 [1.01-1.22], 1.00 [reference], 0.92 [0.80-1.06], and 1.00 [0.75-1.34], respectively). Of 8,880 women, including 267, 3,163, 4,220, and 1,230 women with sleep duration of < 5, 5-6, 6-7, and ≥ 7 h, respectively, smoking initiation was observed in 4.9%, 2.3%, 2.0%, and 2.2%, respectively, during a median observation period of 3.0 years. A similar dose dependent association was ascertained in women (2.50 [1.39-4.49], 1.18 [0.86-1.62], 1.00 [reference], and 1.22 [0.79-1.89], respectively).
This study clarified that university students with short sleep duration were vulnerable to smoking initiation.
本研究旨在阐明睡眠时间短与吸烟起始之间的关联。
本回顾性队列研究的纳入对象为 2007 年至 2015 年期间被日本某国立大学录取的大学生。在入学时的健康检查中，使用一般问卷测量基线睡眠时间和吸烟状况。在 6 年的观察期间内，通过年度健康检查中的一般问卷评估吸烟起始情况。使用调整了临床相关因素的 Cox 比例风险模型评估睡眠时间与吸烟起始之间的关联。
在 17493 名男性中，分别有睡眠时长<5、5-6、6-7、7-8 和≥8 h 的 540、5568、8458、2507 和 420 人，在中位观察期 3.0 年内，分别有 16.1%、12.5%、11.2%、10.0%和 11.7%的人开始吸烟。睡眠时间较短的男性吸烟起始的风险更高（调整后的危险比分别为 1.49[95%置信区间为 1.19-1.85]、1.11[1.01-1.22]、1.00[参考值]、0.92[0.80-1.06]和 1.00[0.75-1.34]）。在 8880 名女性中，分别有睡眠时长<5、5-6、6-7 和≥7 h 的 267、3163、4220 和 1230 人，在中位观察期 3.0 年内，分别有 4.9%、2.3%、2.0%和 2.2%的人开始吸烟。在女性中也观察到了类似的剂量依赖性关联（2.50[1.39-4.49]、1.18[0.86-1.62]、1.00[参考值]和 1.22[0.79-1.89]）。
本研究阐明了睡眠时间短的大学生易发生吸烟起始。
