fa شیوع اضافه‌وزن و چاقی در دانش‌آموزان 11 تا 15 ساله مقطع راهنمایی تحصیلی شهر بیرجند (سال 1385) General پژوهشي Research Article Background and Aim: The prevalence of obesity and overweight in children and adolescence has increased in communities in recent decades. Childhood obesity is likely associated with adulthood obesity and increases related diseases. By determining the prevalence, screening and appropriate intervention and consequently reduction of short and long term complications is expectable. The aim of this study was to estimate the prevalence of overweight and obesity in 11 to 15 years old mid-school students in Birjand.   Materials and Methods: This descriptive-analytic and cross sectional study was performed in 2005 in Birjand. We examined 2105 students (1067 boys and 1038 girls), 11-15 years old. Subjects were selected via a step wise random sampling from four districts of Birjand. Heights and weights and BMI were measured by two trained medical students via standard methods. Persons with BMI of 85 to 95 percentile were assumed as overweight and those with more than 95 as obese according to CDC standards. Other demographic information was gained through interviews and questionnaires. Then, information was encoded and data were analyzed by SPSS (11.5) at α Obesity,Overweight,Body weight,Body Mass Index,Adolescent,Prevalence,Schools 58 64 http://mcj.bums.ac.ir/browse.php?a_code=A-10-1-536&slc_lang=fa&sid=1 Fatemeh Taheri فاطمه طاهری 10031947532846004364 10031947532846004364 No Associate Professor, Department of Pediatric, Faculty of Medicine and Member of Birjand Cardiovascular Research Center, Birjand University of Medical Sciences, Birjand, Iran دانشیار گروه کودکان، دانشکده پزشکی و عضو مرکز تحقیقات قلب و عروق دانشگاه علوم پزشکی بیرجند، ایران Zangoie محبوبه زنگویی 10031947532846004365 10031947532846004365 Yes Assistant Professor, Department of Gynecology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran. Email: afshan_zn@yahoo.com استادیار گروه زنان، دانشکده پزشکی، دانشگاه علوم پزشکی بیرجند، ایران. تلفن: 0561443041-9 پست الکترونیک: afshan_zn@yahoo.com Toba Kazemi طوبی کاظمی 10031947532846004366 10031947532846004366 No Associate Professor, Department of Cardiology, Faculty of Medicine and Member of Birjand Cardiovascular Research Center, Birjand University of Medical Sciences, Birjand, Iran دانشیار گروه قلب و عروق دانشکده پزشکی و عضو مرکز تحقیقات قلب و عروق دانشگاه علوم پزشکی بیرجند، ایران Mohammad Zangoi Fard محمد زنگویی‌پور فرد 10031947532846004367 10031947532846004367 No Physician پزشک عمومی، دانش آموخته دانشکده پزشکی، دانشگاه علوم پزشکی بیرحند، ایران Marzieh Movahed Fazel مرضیه موحد فاضل 10031947532846004368 10031947532846004368 No Physician پزشک عمومی، دانش آموخته دانشکده پزشکی، دانشگاه علوم پزشکی بیرحند، ایران