1Public Health Department, Yazd University of Medical Sciences, Tehran, Iran
2Physical therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
3Health Care Management Department, Science and Research Branch, Islamic Azad University, Tehran, Iran
4Health Occupational Department, Yazd University of Medical Sciences, Yazd, Iran
5Physiotherapy Department, Tehran University of Medical Sciences, Tehran, Iran.
6Chemical Engineering and VHS Department, Semnan University of Medical Sciences, Semnan, Iran.
Background: Low back pain is the most common cause of disability and absence from work among young and middle-aged people. As there is limited knowledge regarding this problem among Iranian students, this study aimed to determine the prevalence of low back pain and its ‘related sociodemographic factors among students of Islamic Azad University, Tehran, Iran. Material and Methods: This is a cross-sectional study in which 200 students of Islamic Azad University were selected purposively. Demographic questionnaire and Ronald-Morris Disability Scale were used to collect data regarding characteristics and disability caused by back pain. Data were entered SPSS 16 and analyzed through descriptive and analytic statistics. Results: In total, 190 students including78 (41%) men and 112 (59%) women were assessed. Of all studied students 113 individuals 65.9 %were suffering from low back pain and 91 students (47.8 %) were suffering from pain_ related disability. Body mass index (BMI) was normal in most participants. There was significant negative relationship between low back pain and physical activity (P= 0.006). Conclusion: To sum up, the results of this study verified a significant relationship among low back pain and disability. Moreover, the students who were more active and were living in good socio-economic status were less probably to suffer from low back pain and disability