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Table 3 Multiple regression analyses: odds ratio for back pain within 6 and 12 months of baseline

From: Risk factors for back pain in marines; a prospective cohort study

  Back pain within 6 months Back pain within 12 months
  OR 95 % CI p-value OR 95 % CI p-value
Body height (m)      
  < 1.86 1.00 Reference . 1.00 Reference .
  ≥ 1.86 2.81 1.16–6.84 0.022 2.75 1.21–6.29 0.016
Previous back pain a     
 No 1.00 Reference . 1.00 Reference .
 Yes 2.99 1.22–7.30 0.016 6.75 2.30–19.80 0.001
Previous lower extremity pain a     
 No 1.00 Reference . . . .
 Yes 2.32 1.02–5.24 0.044 . . .
Sitting work     
  < 1/2 work day 1.00 Reference . . . .
  ≥ 1/2 work day 2.78 1.06–7.32 0.038 . . .
Double leg lift-lower     
 Pass 1.00 Reference . . . .
 Fail 0.32 0.12–0.82 0.018 . . .
  1. odds ratio (OR) with corresponding 95 % confidence interval (95 % CI) and significance level (p-value) for back (lumbar and thoracic) pain within 6 and 12 months of baseline
  2. aPain within 6 months prior to baseline
  3. .Category not applicable