- Preoperative data (N=469).
| Demographics | n (%) |
|---|---|
| Age (years) | 64 (58-70) |
| Female | 393 (83.8) |
| Males | 76 (16.2) |
| BMI (kg/m2) | 34.6 (31-39.1) |
| Smokers | 12 (2.6) |
| Comorbidities | |
| Diabetes mellitus | 183 (39.0) |
| Hypertension | 264 (56.3) |
| Cardiac disease | 50 (10.7) |
| Renal disease | 13 (2.8) |
| Rheumatoid arthritis | 26 (5.5) |
| Osteoporosis | 13 (2.8) |
| Indications for surgery | |
| Primary osteoarthritis | 454 (96.8) |
| Post-traumatic osteoarthritis | 3 (0.6) |
| Preoperative diagnosis of rheumatoid arthritis | 26 (5.5) |
| Arthritis secondary to still disease | 1 (0.2) |
Continuous data are presented as median (Q1-Q3) and categorical data as number and percentages (%).