Methods: 313 college students were randomly sampled in clusters,and the Pittsburgh Sleep Quality Index(PSQI) and scales correlated were used to assess their sleep quality and mental status.

• 方法:通过整群随机抽样选取313名大学生为调查对象,采用匹兹堡睡眠质量指数(PSQI)和相关量表评定大学生的睡眠质量及相关心理状况。