Subgroup analyses of blue-collar workers only (socioeconomic status 4 and 5)
| Number of physical work exposures | N | Per cent | Model 1 | Model 2 | Model 3 | Model 4 |
|---|---|---|---|---|---|---|
| HR (95% CI) | HR (95% CI) | HR (95% CI) | HR (95% CI) | |||
| 0 | 895 | 17.9 | 1 | 1 | 1 | 1 |
| 1 | 953 | 19.1 | 1.43 (0.96 to 2.11) | 1.37 (0.91 to 2.06) | 1.34 (0.89 to 2.03) | 1.32 (0.87 to 2.02) |
| 2 | 1001 | 20.0 | 1.92 (1.33 to 2.78) | 1.91 (1.30 to 2.79) | 1.91 (1.30 to 2.80) | 1.91 (1.29 to 2.84) |
| 3 | 913 | 18.3 | 2.14 (1.49 to 3.09) | 2.06 (1.41 to 3.02) | 2.01 (1.37 to 2.96) | 1.78 (1.20 to 2.66) |
| 4 or more | 1234 | 24.7 | 2.56 (1.81 to 3.62) | 2.42 (1.68 to 3.47) | 2.38 (1.65 to 3.43) | 2.09 (1.42 to 3.05) |
Summed number of physical workloads from table 4 and risk of long-term sickness absence. Risk estimates are provided as HRs and 95% CIs.
Model 1: Adjusted for age, gender and year of questionnaire reply.
Model 2: Model 1+ psychosocial work environment (influence at work, emotional demands, support from colleagues, support from leader).
Model 3: Model 2+ lifestyle (smoking, leisure physical activity, BMI).
Model 4: Model 3+ back pain, neck-shoulder pain and mental health.
BMI, body mass index.