fa بررسی عوامل موثربرنمایه توده بدنی دردانش آموزان مدارس راهنمایی شهرستان بابل در سال 1397-1396 تغذیه تغذیه پژوهشی اصیل Original Article <strong>Background and Objective:</strong> The rising trend of Body Mass Index (BMI) in adolescents is one of the major problems minatory societies. Several factors may affect higher BMI adolescents. This study aimed to identify factors influencing BMI in guidance school students of Babol.<br> <strong>Methods:</strong> This cross-sectional study was conducted in winter 2017. On research population, including about 504 students who were selected by stratified random sampling method. The data collection tool was a researcher-made questionnaire containing demographic, behavioral Such as age, eating fast food, exercising, walking with asked students and questions such as physiological maturity, using breast milk mother&#39;s students asked.&nbsp; dependent variables such as weight with beurer Germany 0.5 kg carefully and Height stadiometer seca Japan Unacceptable reaction with 0.5 cm carefully is measured and calculated BMI based on the standard percentile CDC2000 was analyzed<br> <strong>Results: </strong>The mean BMI in 474 students were 21.5&plusmn;4.9 that109 persons (23%) were Weight loss 65 persons(13.7%) were overweight and 27 persons(5.7) were obese. BMI in students had a significant relationship with school feeding, sex, duration of breastfeed, maturity, consumption of carbonated beverages, working with computers, physical activity, (p<0.05), and had no significant relationship with birth, type of home, residential area, how to go to school, , watching TV, reading, father&#39;s education and job, mother&#39;s education and age(p>0.05).<br> <strong>Conclusion:</strong> The results of this study showed that about a half of the students had a BMI above the normal range. It is recommended to design and apply intervention programs for adolescents.<br> &nbsp; Keywords: Body Mass Index, BMI, Students, Overweight, Obesity,Weight loss 52 58 http://crms.mubabol.ac.ir/browse.php?a_code=A-10-126-1&slc_lang=fa&sid=1 GH Rostampour غلام حسن رستم پور hasan_rostampoor@yahoo.com 10031947532846001562 10031947532846001562 Yes Health Education Center, Vice-Chancellor of Health, Babol University of Medical Sciences and Health Services, Babol, Iran. بهداشت ودرمان P Heidarpour پیغام حیدر پور 10031947532846001563 10031947532846001563 No Faculty of Management and Medical Education, University of Medical Sciences and Services Shahid Beheshti Health Care, Tehran, Iran. SD Nasrollahpour سید داوود نصراله پور 10031947532846001564 10031947532846001564 No Faculty of Paramedicine, Babol University of Medical Sciences and Health Services, Babol, Iran.