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Table 2 Prevalence and adjusted odds ratio (ORadj) with 95% confidence interval (95%CI) of low back pain with respect to factors in the final modelling (n = 397)

From: Development of a risk score for low back pain in office workers - a cross-sectional study

Factors N Prevalence n (%) ORadj 95% CI P
Previous history of working as an office worker      
   Yes 173 109 (63.0) 1.72 1.08-2.74 0.023
   No 224 110 (49.1) 1.00   
Years of work experience (years)      
   < 10 122 54 (44.3) 1.00   
   10-19 146 96 (65.8) 3.48 1.95-6.20 < 0.001
   ≥20 129 69 (53.5) 2.03 1.14-3.62 0.017
Continuous standing >2 hrs/d      
   Yes 86 55 (64.0) 1.86 1.03-3.33 0.039
   No 311 164 (52.7) 1.00   
Frequently bending forward during the work day      
   Yes 228 137 (60.1) 1.78 1.12-2.83 0.014
   No 169 82 (48.5) 1.00   
Chair having lumbar support      
   Yes 177 88 (49.7) 1.00   
   No 220 131 (59.5) 1.65 1.04-2.63 0.035
Backache Index outcome      
   0 197 79 (40.1) 1.00   
   ≥1 200 140 (70.0) 4.02 2.52-6.42 < 0.001
Effort-Reward ratio      
   ≤ 1 382 206 (53.9) 1.00   
   >1 15 13 (86.7) 6.41 1.25-32.87 0.026