• Aranjan Lionel Karunanayake, Arunasalam Pathmeswaran, Anuradhini Kasturiratne, and Lalith Sirimevan Wijeyaratne.
• Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka. aranjan1368@gmail.com
• Int J Rheum Dis. 2013 Apr 1; 16 (2): 203-10.

BackgroundChronic low back pain is an important health problem Sri Lankan males.AimTo determine the association between low back pain and posture, exercise, family history, level of education, level of income, smoking, consumption of alcohol and animal proteins.MethodsA case control study was carried out among 166 cases (patients with low back pain) and 196 controls (without low back pain). Data was collected using a pretested structured interviewer-administered questionnaire, enquiring about demographic data and details of risk factors. Heights and weights were measured to calculate body mass index (BMI).ResultsAge range was 18-85 years. Mean age (SD) for cases was 47.8 (16) years. Mean age (SD) for controls was 42.6 (17) years. Bad posture (odds ration [OR] = 107.4), lack of exercise (OR = 16.4), positive family history (OR = 42.3), moderate education (OR = 1.8), daily alcohol consumption (OR = 2.4) and not consuming animal proteins (OR = 4.6) were significant risk factors for low back pain. BMI, level of income and smoking did not have a significant association with low back pain.ConclusionPosture, exercise, family history, level of education, consumption of animal proteins and consumption of alcohol had significant associations with low back pain. Most risk factors were similar to other countries. However, being marginally over weight and smoking regularly were not significantly associated with low back pain.© 2013 The Authors International Journal of Rheumatic Diseases © 2013 Asia Pacific League of Associations for Rheumatology and Wiley Publishing Asia Pty Ltd.

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