Department of Clinical Child and Adolescent Studies, Institute of Education and Child Studies, Leiden University, Leiden, the Netherlands.
Leiden Institute for Brain and Cognition, Leiden University, Leiden, the Netherlands.
J Sleep Res. 2018 Apr;27(2):165-174. doi: 10.1111/jsr.12596. Epub 2017 Sep 7.
Inadequate sleep impairs cognitive function and has been associated with worse academic achievement in higher education students; however, studies that control for relevant background factors and include knowledge on sleep hygiene are scarce. This study examined the association of chronic sleep reduction (i.e. symptoms of chronic sleep reduction such as shortness of sleep, sleepiness and irritation), subjective sleep quality and sleep hygiene knowledge with academic achievement (grades and study credits) and study concentration among 1378 higher education students (71% female, mean age 21.73 years, SD = 3.22) in the Netherlands. Demographic, health, lifestyle and study behaviour characteristics were included as covariates in hierarchical regression analyses. After controlling for significant covariates, only chronic sleep reduction remained a significant predictor of lower grades (last exam, average in current academic year). Better sleep quality and sleep hygiene knowledge were associated with better academic achievement, but significance was lost after controlling for covariates, except for a remaining positive association between sleep hygiene beliefs and grades in the current academic year. Moreover, better sleep quality and lower scores on chronic sleep reduction were associated with better study concentration after controlling for significant covariates. To conclude, chronic sleep reduction is associated with academic achievement and study concentration in higher education students. Inadequate sleep hygiene knowledge is moderately associated with worse academic achievement. Future research should investigate whether sleep hygiene interventions improve academic achievement in students of higher education.
睡眠不足会损害认知功能，并与高等教育学生的学业成绩更差有关;然而，控制相关背景因素并包括睡眠卫生知识的研究却很少。本研究调查了慢性睡眠减少(即睡眠减少、嗜睡和烦躁等慢性睡眠减少症状)、主观睡眠质量和睡眠卫生知识与学业成绩(成绩和学习学分)和荷兰 1378 名高等教育学生(71%女性，平均年龄 21.73 岁，SD = 3.22)的学习注意力之间的关系。在分层回归分析中，将人口统计学、健康、生活方式和学习行为特征作为协变量进行了控制。在控制了显著的协变量后，只有慢性睡眠减少仍然是成绩较低的一个显著预测因素(最后一次考试，当前学年的平均成绩)。睡眠质量和睡眠卫生知识较好与学业成绩较好相关，但在控制了协变量后，相关性消失，除了睡眠卫生信念与当前学年成绩之间仍然存在正相关外。此外，在控制了显著的协变量后，睡眠质量较好和慢性睡眠减少评分较低与学习注意力较好相关。总之，慢性睡眠减少与高等教育学生的学业成绩和学习注意力有关。睡眠卫生知识不足与学业成绩较差中度相关。未来的研究应调查睡眠卫生干预是否能提高高等教育学生的学业成绩。
