Dose-risk relation between the number of main risk factors and knee pain
|
Exposures10-150
n | Total |
Knee pain n (%) |
Adjusted for age and sex OR (95% CI) |
Test for trend, χ2 p value | |
| 0 | 639 | 102 (16) | 1.0 | 21.6, p<0.005 | |
| 1 | 179 | 37 (21) | 1.2 (0.8 to 1.9) | ||
| 2 | 102 | 32 (31) | 2.1 (1.3 to 3.5) | ||
| 3 | 63 | 20 (32) | 2.1 (1.2 to 3.9) | ||
| ⩾4 | 32 | 15 (47) | 4.4 (2.0 to 9.4) | ||
↵10-150 Lifting >25 lb (11 kg) with one hand, lifting >50 lb (23 kg) with two hands, carrying >50 lb (23 kg) on one shoulder, lifting >25 lb (11 kg) at or above shoulder level, and kneeling for at least 15 minutes.