|
|
Group 1 |
Group 2 |
Group 3 |
p-value |
| # TKAs |
3105 |
7537 |
4573 |
- |
| Diagnosis (%) |
|
|
|
<0.0001 |
| Osteoarthritis |
86.1% |
97.8% |
99.6% |
|
| Osteonecrosis |
10.4% |
1.6% |
0.3% |
|
| Rheumatoid arthritis |
3.5% |
0.5% |
0.1% |
|
| Other |
- |
0.1% |
- |
|
| Gender (%) |
|
|
|
0.7139 |
| Male |
39% |
40% |
37% |
|
| Female |
61% |
60% |
63% |
|
| Age (years) |
|
|
|
0.0006 |
| Average |
67.9 |
69.0 |
66.2 |
|
| Range |
19-91 |
19-93 |
30 - 91 |
|
| sd. |
9.4 |
9.3 |
9.5 |
|
| BMI (kg/m2) |
|
|
|
<0.0001 |
| Average |
27.8 |
31.0 |
33.7 |
|
| Range |
15 - 64 |
15 - 64 |
13 - 61 |
|
| sd. |
5.9 |
2.9 |
6.7 |
|
| Follow-up (years) |
|
|
|
- |
| Average |
12.8 |
7.6 |
3.6 |
|
| Range |
0 - 28 |
0 - 19 |
0 - 7 |
|
| sd. |
5.9 |
3.7 |
1.0 |
|