Association of factors entered into the final model (after being selected into stepwise models (a) and (b)4-150) with disabling shoulder pain
| Factor entered into model | No | % | PRR4-151(95% CI)4-152 |
| Work above shoulder level (min) | |||
| 0 | 108 | 20 | 1.0 |
| 0.5–10 | 45 | 34 | 1.7 (1.1 to 2.4) |
| 10.5–60 | 45 | 52 | 2.2 (1.5 to 3.3) |
| Lifting with one hand (min) | |||
| 0 | 94 | 19 | 1.0 |
| 0.1–6 | 45 | 33 | 1.7 (1.2 to 2.5) |
| 6.1–60 | 57 | 43 | 2.0 (1.4 to 2.8) |
| GHQ4-151 score | |||
| 12–20 | 39 | 16 | 1.0 |
| 21–23 | 57 | 23 | 1.5 (1.0 to 2.3) |
| 24–48 | 101 | 37 | 1.9 (1.3 to 2.9) |
| Does work cause stress/worry? | |||
| Never/occasionally | 119 | 22 | 1.0 |
| About half the time | 52 | 36 | 1.6 (1.2 to 2.3) |
| Always/most of the time | 27 | 38 | 1.4 (1.0 to 2.1) |
↵4-150 Stepwise model (a) included variables relating to the duration of occupational physical demands, and stepwise model (b) included variables relating to psychosocial working environment and psychological wellbeing.
↵4-151 PRR = prevalence rate ratio; GHQ = General Health Questionnaire.
↵4-152 PRR and 95% confidence interval adjusted for age, sex, occupational setting, and other factors entered into regression model.