Introduction: Poor quality of sleep is a distressing and worrying
condition that can disturb academic performance of medical students. Sleep
hygiene practices are one of the important variables that affect sleep quality.
The objective of this study was to assess association between sleep hygiene
practices and sleep quality of medical students in Qazvin University of Medical
study, a total of 285 medical students completed a self-administered
questionnaire. Demographic data, sleep-wake schedule in weekday and weekend,
and sleep duration were collected. Students' sleep quality was assessed by
Pittsburg Sleep Quality Index (PSQI).
Data were analyzed by SPSS Ver 13.
Results: Overall, 164 (57.5) of students had poor sleep quality.
Mean global PSQI score and average score of four subscales were significantly
higher in male than female. Regression analysis showed that male students (β=-0.85,
P<0.05), students at senior level (β=-0.81, P<0.05), married students
(β=-0.45, P<0.05), and those with improper sleep hygiene practices slept
Conclusion: The findings of this
study showed that the prevalence of poor sleep quality in medical students is
high. Improper sleep hygiene behaviors might be a reason for poor quality of
sleep in medical students.