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

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

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

* 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.

ISSN: 1471-2474