TY - JOUR T1 - Sleep quality and related factors in interns and externs of Tehran Islamic Azad University medical students TT - بررسی شیوع اختلال خواب و عوامل مرتبط با آن در دانشجویان پزشکی دانشگاه آزاد اسلامی تهران JF - iau-tmuj JO - iau-tmuj VL - 20 IS - 4 UR - http://tmuj.iautmu.ac.ir/article-1-381-en.html Y1 - 2011 SP - 278 EP - 284 KW - Sleep disorders KW - Medical students KW - Sleep quality N2 - Background: Sleep sufficiency and quality affects medical students’ academic learning and understanding. So, this study was conducted to assess sleep quality and its associated factors among medical students. Materials and Methods: In this descriptive cross- sectional study, 407 medical students (269 interns and 138 externs) were chosen by a multi-stage random sampling method from five hospitals in Tehran, Iran and questioned using Sleep and Day- Time Habits Questionnaire (S&DHQ). Data were analyzed using descriptive statistic methods and Spearman correlation coefficient test. Results: 407 medical students with mean (± SD) age of 25±1.67 were studied. 257 (63.1%) and 150 (36.9) were female and male, respectively. 9.1% of students reported their sleep quality as excellent, 36.1% good, 39.3% satisfactory, 13.5% unsatisfactory and 2% poor. There was statistically significant relationship between students’ sleep quality and awakening due to environmental noises, day time napping duration, uncommon bed entry time, early morning awakenings, and day time fatigue and drowsiness in class rooms (P M3 ER -