Table 1.
Comparison of patient and operative characteristics between primary and revision shoulder arthroplasty
| Variable | All patients | Primary | Revision | p value |
|---|---|---|---|---|
| 10,867 (100%) | 10,371 (95.4%) | 496 (4.6%) | ||
| Age | < 0.001* | |||
| < 55 | 7.8% | 7.5% | 13.3% | |
| 55–65 | 21.8% | 21.7% | 24.4% | |
| 65–75 | 13.7% | 38.8% | 34.9% | |
| > 75 | 31.8% | 32.0% | 27.3% | |
| Female (%) | 56.3% | 56.3% | 55.6% | 0.766 |
| Body mass index (kg/m2) | 0.905 | |||
| Non-obese (< 30) | 50.4% | 50.4% | 51.5% | |
| Obese I (30–34.9) | 26.2% | 26.2% | 26.5% | |
| Obese II (35–39.9) | 13.5% | 13.5% | 12.7% | |
| Obese III (> 40) | 9.9% | 10.0% | 9.3% | |
| Comorbidities | ||||
| Diabetes | 16.7% | 16.6% | 19.8% | 0.062 |
| Smoking | 10.5% | 10.2% | 16.9% | < 0.001* |
| COPD | 6.2% | 6.2% | 7.7% | 0.177 |
| Hypertension | 67.0% | 67.1% | 64.3% | 0.194 |
| ASA ≥ 3 | 52.6% | 52.2% | 59.3% | 0.002* |
Significant values are presented in bold
*Significance defined as p < 0.05