Investigation and analysis of sleep quality and cognitive situation among medical students in Changsha City

Objective To investigate the sleep quality and cognitive situation among medical students in Changsha City and to provide the government reference basis of formulating concrete measures to improve the medical students' sleep quality. Methods Using random cluster sampling method, part of students (not including graduate students) were randomly selected from several medical colleges in Changsha as the object of investigation. The main contents of the questionnaire included general items, sleep quality, and sleep cognitive. Data were analyzed by SPSS 17.0 after collection and arrangement. Results The overall average score of medical students' sleep quality was 9.49±2.55, 4.27% college students had trouble in sleeping. The overall average score of sleep cognitive was 15.10±3.58,23.33% had incorrect cognition about sleeping. There were no significant differences of sleep quality between girls and boys(t=-0.285,P=0.775).But there were significant differences of sleep cognition between genders, girls were better than boys (t=2.369,P=0.018).Significant correlation was observed between the stand or fall of sleep cognition and sleep quality(χ²=110.84,P<0.001). Conclusions It is prevalent that some college students have sleep problems. And the bad sleep cognition rate is relatively high, it associates with unscientific sleep cognition. Moreover, there are significant differences of sleep cognition between genders.