Relative risks (RR) and 95% confidence intervals (CI) for developing osteoarthrosis in women exposed to high and to medium physical loads of various kinds, compared with those with low exposure
| Medium exposure | High exposure | ||||||
| Exposure2-150 | RR† | 95% CI | Exposed cases | RR† | 95% CI | Exposed cases | |
| Sitting (h) | 0.8 | 0.5, 1.2 | 106 | 0.8 | 0.4, 1.3 | 59 | |
| Standing (h) | 1.4 | 0.8, 2.2 | 123 | 1.6 | 0.9, 2.8 | 59 | |
| Heavy lifts (n) | 1.1 | 0.7, 1.7 | 101 | 1.5 | 0.9, 2.5 | 82 | |
| Twisted position (h) | 1.1 | 0.7, 1.8 | 110 | 1.6 | 0.9, 2.6 | 72 | |
| Jumps (n) | 1.0 | 0.5, 2.0 | 15 | 2.1 | 1.1, 4.2 | 24 | |
| Stairs climbed (n) | 1.3 | 0.8, 2.0 | 106 | 2.1 | 1.2, 3.6 | 80 | |
| Non-occupational physically demanding tasks (y) | 1.6 | 0.8, 2.9 | 24 | 2.3 | 1.5, 3.6 | 81 | |
↵2-150 Exposures aggregated from the age of 16 to the age of 50. †RR adjusted for age, body mass index, smoking, sports activities, number of children, and hormone therapy.