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Table 2 Results of univariate logistic regression of factors associated with musculoskeletal pain among school children, Ethiopia

From: Musculoskeletal pain and associated factors among Ethiopian elementary school children

Variable Crude Odds ratio 95% CI interval P
Lower Upper
Age (5–10 years)
 10–15 years 0.86 0.62 1.18 0.34
  > 15 years 1.64 0.85 3.15 0.14
Bag/body weight (0–10%)
 10–20% 1.30 0.94 1.81 0.11
  > 20% 2.19 1.29 3.71 0.00
BMI (underweight)
 Normal 0.83 0.56 1.21 0.33
 Overweight 0.72 0.36 1.46 0.36
 Obese 0.51 0.14 1.85 0.31
Carrying supplies (back pack)
 Single strap 1.02 0.65 1.61 0.92
 Hand bag 0.31 0.06 1.70 0.18
 In hand (no bag) 1.92 0.89 4.14 0.10
Mode of transport (walking)
 Motorized 0.43 0.30 0.60 0.00
Type of school (private)
 Governmental 2.01 1.46 2.78 0.00
Walking duration (no walking)
  < 20 min 0.53 0.27 1.04 0.06
  ≥ 20 min 2.77 1.95 3.94 0.00
Bag/body weight X Gender 1.138 0.83 1.56 0.42
Bag/body weight X Type of school 1.061 0.71 2.45 0.89
Bag/body weight X Walking duration 5.761 2.67 9.41 0.00
Type of school X walking duration 4.27 1.93 9.44 0.00