No of cases | Incidence rate (per 1000 py) | HR* | HR† | 95% CI† | |
All causes | |||||
Mostly sedentary | 882 | 11 | 1.00 | 1.00 | |
Much walking | 1239 | 15 | 1.28 | 1.26 | 1.16 to 1.38 |
Much walking + lifting | 1199 | 16 | 1.69 | 1.44 | 1.32 to 1.58 |
Heavy physical work | 517 | 16 | 1.76 | 1.49 | 1.33 to 1.70 |
Musculoskeletal disorders | |||||
Mostly sedentary | 273 | 4 | 1.00 | 1.00 | |
Much walking | 461 | 5 | 1.47 | 1.43 | 1.23 to 1.67 |
Much walking + lifting | 485 | 7 | 2.21 | 1.82 | 1.57 to 2.12 |
Heavy physical work | 255 | 9 | 2.94 | 2.39 | 2.00 to 2.86 |
Mental disorders | |||||
Mostly sedentary | 124 | 2 | 1.00 | 1.00 | |
Much walking | 142 | 2 | 1.05 | 1.09 | 0.85 to 1.39 |
Much walking + lifting | 100 | 2 | 0.97 | 0.93 | 0.71 to 1.23 |
Heavy physical work | 44 | 2 | 1.01 | 0.98 | 0.68 to 1.40 |
Occupational physical activity groups relative to the mostly sedentary group.
*Adjusted for age (continuous) and sex.
†Adjusted for age (continuous), sex and education (<10, 10–12 and ≥13 years), marital status (unmarried, married, widow/widower and divorced/separated), smoking (never, previous and current), physical symptoms (0–5), number of somatic conditions (0, 1, 2 and ≥3), Hospital Anxiety and Depression Scale (continuous), leisure-time physical activity (inactive and active) and body mass index (<25.0, 25.0–29.9 and ≥30.0 kg/m2).
py, person-years.