Possible independent risk factors for non-vertebral fractures in patients with RA and controls. Logistic regression analysis for patients with RA and controls
| β | SE | OR | 95% CI | |
|---|---|---|---|---|
| *For controls, disease duration = number of years since dummy time of disease onset, corresponding with the time of disease onset of the matched patient with RA. | ||||
| Patients with RA | ||||
| Disease duration | 0.04 | 0.02 | 1.04 | 1.01 to 1.07 |
| Z score total hip (−1 SD) | 0.42 | 0.12 | 1.52 | 1.10 to 2.12 |
| Constant | −2.32 | 0.42 | ||
| Controls | ||||
| Disease duration* | 0.05 | 0.02 | 1.05 | 1.01 to 1.08 |
| Z score total hip (−1 SD) | 0.46 | 0.18 | 1.55 | 1.07 to 2.20 |
| Constant | −2.16 | 0.34 | ||