Association between physical work demands and work ability in workers with musculoskeletal pain: cross-sectional study

Table 3 Odds ratios (OR) and 95% confidence intervals (95% CI) for summed number of physical work demands and work ability

Number of exposures	n	%	Model 1	Model 2
Number of exposures	n	%	OR (95% CI)	OR (95% CI)
0	1342	25.4	1	1
1	1029	19.5	1.20 (1.03–1.40)	1.03 (0.88–1.21)
2	931	17.6	1.81 (1.55–2.11)	1.29 (1.09–1.52)
3	904	17.1	2.01 (1.71–2.36)	1.28 (1.08–1.51)
4 or more	1084	20.5	2.78 (2.39–3.25)	1.45 (1.22–1.72)

Model 1: Adjusted for age and gender.
Model 2: model 1 + lifestyle (smoking, BMI), psychosocial work environment (influence at work, emotional demands), pain (intensity in the lower back, neck-shoulder, and arm), chronic disease (depression, diabetes, cardiovascular disease, cancer).
Significant differences (P < 0.05) from reference are marked in bold. Cut-points for physical work demands were set at 25% of workday, except ‘Standing in the same place’, which was set at 50% of workday.

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