Background: Low back pain (LBP) is a common disease among people under the age of 20. To the best of our knowledge few studies have been carried out on LBP among school children in Turkey, and none of them studied the correlation between pain intensity and related variables with LBP.
Material/Methods: This cross-sectional study was carried out to investigate the risk factors and their correlations with pain intensity among 222 school children (106 girls and 116 boys) aged 10–18 years in the city of Denizli. A self-reported questionnaire was used to collect the data. The regression tree method (RTM) was used to determine the risk factors by using the STATISTICA program package. Pain intensity was the outcome variable, and 8 independent variables (body mass index (BMI), sex, regular exercise habit, studying posture, transportation to/from school, duration of studying, bag handling, and type of bed) were used to detect their effect on pain intensity.
Results: The results showed that pain intensity is significantly affected by 4 independent variables: duration of studying, type of bed, transportation to/from school, and BMI. The overall mean and standard deviation of pain intensity was 2.58±0.86 (minimum=1, maximum=5).
Conclusions: Results from the literature, as well as our study, show that taking parents’ and teachers’ concerns seriously is of vital importance. Our results indicate that parents and teachers should be informed about duration of studying, type of bed, transportation and obesity as risk factors predicting NLBP in school children.

Keywords: Regression Analysis, Questionnaires, Low Back Pain - epidemiology, Child, Adolescent, Risk Factors, Schools