Table 1.
Demographics by Study Group
| Group 1 (TKA Performed in 2005-2006, N = 214) | Group 2 (TKA Performed in 2018, N = 213) | P Value∗ | |
|---|---|---|---|
| Age, y | 64.3 ± 11.46 | 67.0 ± 8.31 | .01 |
| Body mass index | 34.03 ± 8.65† | 33.31 ± 7.56 | .36 |
| Sex | .40 | ||
| Male | 70 (32.7%) | 78 (36.6%) | |
| Female | 144 (67.3%) | 135 (63.4%) | |
| TKA laterality | .05 | ||
| Right | 88 (41.1%) | 91 (42.7%) | |
| Left | 67 (31.3%) | 84 (39.4%) | |
| Bilateral | 59 (27.6%) | 38 (17.8%) |
NOTE. Data are reported as mean ± standard deviation or N (%).
TKA, total knee arthroplasty.
∗
The P value was derived from t-tests for comparisons of continuous data and χ2 test for comparisons of categorical data.
†
Body mass index was missing for 2 patients in Group 1 and for 1 patient in Group 2.