物质资本与大学生睡眠质量的关系：感知压力的中介作用

Relationship between Material Capital and Sleep Quality among College Students: The Mediating Role of Perceived Stress

摘要: 目的：探讨物质资本与大学生睡眠质量的关系，并分析感知压力在其中的中介效应，为制定有效改善大学生睡眠状况的干预措施提供思路。方法：采用随机抽样的方法，对广州市某医科大学525名在校大学生进行问卷调查，使用匹兹堡睡眠质量指数量表(PSQI)、物质资本量表、感知压力量表等进行调查。结果：受试大学生PSQI总分为(5.88 ± 2.83)，约22%的大学生存在睡眠问题(PSQI ≥ 8)；物质资本显著负向预测大学生感知压力，同时物质资本负向预测大学生睡眠问题，感知压力正向预测大学生睡眠问题。Bootstrap检验中介效应95%置信区间不包含零，说明感知压力在物质资本与睡眠问题间中介效应显著，其效应值为−0.08，中介效应量占总效应57.14%。结论：物质资本与感知压力是大学生睡眠问题的重要影响因素，提升家庭物质资本及降低感知压力水平，有利于提高大学生睡眠质量。

Abstract: Objective: To explore the relationship between material capital and sleep quality among college students and to examine the mediating role of perceived stress on the relationship. Methods: A total of 525 undergraduates were recruited by random sampling. All participants completed the Pittsburgh Sleep Quality Index scale, material capital scale and perceived stress scale. Results: 22% of college students had reached the criteria of sleep problems (PSQI ≥ 8); material capital was negatively associated with sleep problems; perceived stress was positively related to sleep problems. Bootstrap analysis showed the 95% CI [−0.15, −0.02] was significant, indicating that the relationship between material capital and sleep quality was mediated by perceived stress. Conclusions: Abundant material capital and reduced perceived stress are beneficial to improve sleep quality of college students.