ABSTRACT
Objective To investigate the sleep quality of students from a medical university and to analyze the risk factors of sleep disorders. Methods Students from a medical university were selected with cluster sampling method. A total of 886 students were included in this study: there were 55 Major A students, 80 Major B students, 97 Major C students, 577 Major D students, and 77 Major E students. The students were investigated by Pittsburgh sleep quality index (PSQI) and sel-designed physical state questionnaire. Results (1)The number of effective questionnaire was 843 and sleep disorders were found in 284 students, with an incidence of 33. 7% and a PSQI score of 5. 48 + 0. 12. The incidences of sleep orders and PSQI scores were 43. 4% (23/53) and 6. 23 + 0. 48 for Major A, 32. 9% (23/70) and 4. 93 + 0. 44 for Major B, 40. 4% (36/89) and 5. 75 + 0. 34 for Major C, 32. 4% (183/564) and 5. 47 + 0. 14 for Major D and 28. 4% (19/67) and 5. 18 + 0. 40 for Major E, with no significant difference found for different majors (P>0. 05). (2)The factors leading to somnipathy included emotional stress, ambient noise, somatic pain, school learning, seldom late-night snack and occasional late-night snack (OR=0. 577, 0. 611, 0. 265, 0. 260, 0. 547, and 0. 507, respectively). Conclusion The students in the involved medical university have a low sleep quality which may affect their physical state during day time. Active measures should be taken to improve students sleep quality so as to insure their study.