大学生日间嗜睡与睡眠拖延和睡眠质量的关系

Relationship among daytime sleepiness,bedtime procrastination and sleep quality in college students

目的:探讨大学生日间嗜睡与睡眠拖延的关系,以及睡眠质量的中介作用和性别的调节作用。方法:选取某两所本科院校在校大学生2823人(男808人,女2015人),采用Epworth嗜睡量表(ESS,得分≥11分提示存在日间嗜睡)、匹兹堡睡眠质量指数量表(PSQI)、睡眠拖延量表(BPS)测查。采用PROCESS宏程序中的模型4检验睡眠质量的中介作用,采用模型14检验性别的调节作用。结果:1214人(占43.0%)存在日间嗜睡状况。ESS得分与BPS得分正向关联(β=0.16);PSQI总分在BPS得分与ESS得分间起部分中介作用,中介效应占总效应的39.9%;性别在PSQI总分与ESS得分间起调节作用(β=-0.13)。结论:大学生的日间嗜睡与睡眠拖延、睡眠质量相关,性别可以调节睡眠质量与日间嗜睡的关系。

Objective:To investigate the relationship between bedtime procrastination and daytime sleepiness in college students,and to explore the mediating effect of sleep quality and the moderating effect of gender in the a-bove-mentioned relationship.Methods:A total of 2823 college students(808 males,2015 females)from two uni-versities were selected.They were assessed with the Bedtime Procrastination Scale(BPS),Epworth Sleeping Scale(ESS,ESS score≥11 indicated daytime sleepiness)and Pittsburgh Sleep Quality Index(PSQI).Process model 4 was used to test the mediating effect of sleep quality and model 14 was used to test the moderating effect of gender.Results:There were 1214(43.0%)college students suffering from daytime sleepiness.The scores of ESS in college students were positively associated with the BPS scores(β=0.16).The total scores of PSQI partially mediated the effect of BPS scores on college students′ESS scores,and the value of mediating effect was 39.9%.The association between PSQI scores and ESS scores was moderated by gender(β=-0.13).Conclusion:Daytime sleepiness is associated with bedtime procrastination and sleep quality in college students,and the association be-tween sleep quality and daytime sleepiness is moderated by gender.