fa شیوع اختلال صدا در معلمین دبستان‌های شهر یزد و آگاهی شیوع اختلال صدا در معلمین دبستان‌های شهر یزد و آگاهی General پژوهشي Research Article Background and Aim : Teaching in schools is known as a work hazard causing voice disorders and is also associated with job satisfaction and performance. The object of this study is to investigate the knowledge and prophylaxis behaviors and the rate of disphonia in elementary school teachers of Yazd.   Materials and Methods: This descriptive- analytic study was conducted on 280 teachers (140 men, 140 women) that were chosen from 2 education areas of Yazd city, Iran by simple sampling method. The data were collected by a questionnaire which its validity and reliability were established. The data were analyzed by using SPSS software and some tests, like Analyze Variance, t- test (P˂0.01).   Results: The prevalence of this disease was 55.4%among the teachers and the most common form was stiffness of larynx. The knowledge of teachers was in average. There was a significant correlation between education levels of samples and their knowledge. The knowledge of teachers with bachelor degree or higher than it, was more than others ( P Voice disorders.Dysphonia,Occupational diseases,Teaching,awareness,Prevalence 79 85 http://mcj.bums.ac.ir/browse.php?a_code=A-10-1-540&slc_lang=fa&sid=1 Mohammad Hosein Baghiyani Moghadam محمدحسین باقیانی مقدم 10031947532846004377 10031947532846004377 No Professor, Department of Public Health, Yazd University of Medical Sciences, Yazd, Iran استاد گروه خدمات بهداشتی، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران Zahra Lalegani زهرا لله‌گانی 10031947532846004378 10031947532846004378 Yes M.Sc of Health Education, Department of Public Health, Yazd University of Medical Sciences, Yazd, Iran. Email: lalegani59@yahoo.com کارشناس ارشد آموزش بهداشت، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران. تلفن: 021-44807964 پست الکترونیک: lalegani59@yahoo.com Mohammad Ali Morowaty محمدعلی مروتی 10031947532846004379 10031947532846004379 No Associate Professor, Department of Public Health, Yazd University of Medical Sciences, Yazd, Iran دانشیار گروه بهداشت، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران Ghasem Karimi قاسم کریمی 10031947532846004380 10031947532846004380 No Assistant Professor, Department of ENT, Faculty of Medicine, Yazd University of Medical Sciences, Yazd, Iran استادیار گروه گوش حلق بینی، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران Hossein Fallah Zade حسین فلاح‌زاده 10031947532846004381 10031947532846004381 No Associate Professor, Department of Epidemiology, Yazd University of Medical Sciences, Yazd, Iran دانشیار گروه آمار زیستی و اپیدمیولوژی دانشگاه علوم پزشکی شهید صدوقی یزد، ایران