Association between discrete patient variables (percentages) and bone erosions.
| Bone Erosions | Yes | No | p |
|---|---|---|---|
| Rheumatoid factor-positive | 68.5 | 55.2 | < 0.001 |
| Anti-CCP-positive | 71.2 | 58.1 | < 0.001 |
| Smoking | 21.0 | 20.3 | NS |
| Postmenopausal status | 77.2 | 72.4 | 0.09 |
| DMARD treatment | 71.2 | 73.4 | NS |
| Glucocorticoid treatment | 86.2 | 85.5 | NS |
| TNF blocker therapy | 50.7 | 36.2 | < 0.001 |
| Vitamin D supplementation | 47.6 | 40.2 | 0.014 |
| Bisphosphonate therapy | 29.3 | 23.4 | 0.026 |
Anti-CCP: cyclic citrullinated peptide antibody; DMARD: disease-modifying antirheumatic drugs; TNF: tumor necrosis factor; NS: nonsignificant, p > 0.05.