Sleep Quality in Medical Residents and its Relationship with General Health

The purpose of this study was to determine the quality of sleep and its relationship with general health of first-and second-year medical residents of various specialties working in teaching centers affiliated with Iran University of Medical Sciences.
This study was a cross-sectional and descriptive-analytical study. Of 1246 first- and second-year medical residents 330 (56.1% male, 43.9% female with mean age of 31.9) were selected randomly to participate in the study. The data collection instruments included a demographic questionnaire and habits of residents, the Pittsburgh Sleep Quality Index (PSQI), and the General Health Questionnaire-28 (GHQ-28). The data were analyzed using Pearson's correlation coefficient and multi-nominal logistic regression analysis.
Mean score of PSQI (±SD) of studied individuals was 6.9±0.5, (median 5). In total 200 persons (60.6%) had scores higher than 5 indicating undesirable sleep quality. Sleep quality scores had relatively strong correlation with subscales’ scores of anxiety and insomnia; and also with GHQ-28 total score (r More than half of the first-and second-year residents were experiencing poor sleep quality and sleep quality had significant and inverse correlation with general health status and number of shifts per month.