Table 2.
Patient characteristics and follow-up between the PVNS group and the control group
| PVNS (n = 19) | Controls (n = 38) | p value | |
|---|---|---|---|
| Age (year), mean ± SD | 35.2 ± 10.2 | 35.2 ± 10.0 | 1.000 |
| Gender, n (%) | 1.000 | ||
| Female | 12 (63.2%) | 24 (63.2%) | |
| Male | 7 (36.8%) | 14 (36.8%) | |
| Body mass index (kg/m2), mean ± SD | 24.6 ± 2.2 | 24.5 ± 1.9 | 0.975 |
| American Society of Anesthesiologists score | 1.000 | ||
| 1 | 14 | 28 | |
| 2 | 4 | 8 | |
| 3 | 1 | 2 | |
| Diagnosis, n (%) | – | ||
| Osteonecrosis | 0 (0%) | 27 (71%) | |
| Osteoarthritis | 0 (0%) | 11 (29%) | |
| PVNS | 19 (100%) | 0 (0%) | |
| Follow-up (years), mean ± SD | 8.7 ± 1.3 | 8.6 ± 1.1 | 0.902 |
PVNS pigmented villonodular synovitis, SD standard deviation