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Table 5 Risk scores for low back pain with the exclusion of the Thai ERIQ

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

Factors Beta Coefficient Risk score*
Previous history of working as an office worker   
   Yes 0.51 1
   No   0
Years of work experience (years)   
   < 10   0
   10-19 1.17 2
   ≥20 0.62 1
Continuous standing >2 hrs/d   
   Yes 0.59 1
   No   0
Frequently bending forward during the work day   
   Yes 0.55 1
   No   0
Chair having lumbar support   
   Yes   0
   No 0.48 1
Backache Index   
   0   0
   ≥1 1.41 3
  1. * Reference groups were assigned a score of 0. β Coefficient of chair without lumbar support was assigned a score of 1 and then the other β Coefficient was multiplied by 2 (1/0.50) and rounded off to the nearest integer.