Table 2.
Comparison of Harris hip and SF-12 scores
| Variable | Statistic | THA (n = 26) | Surviving FVFG (n = 39) | Difference | p value* |
|---|---|---|---|---|---|
| Preoperative Harris hip score | Mean (SD) | 66 (19.5) | 66 (16.5) | 0 | 0.102 |
| Postoperative Harris hip score | Mean (SD) | 89 (28) | 89 (15) | 0 | 0.432 |
| Change in Harris hip score | Mean (SD) | +23 (19) | +23 (18) | 0 | 0.302 |
| SF-12 Physical Component Summary | Mean (SD) | 47 (9.4) | 49 (9.6) | 2 | 0.521 |
| SF-12 Mental Component Summary | Mean (SD) | 50 (7.7) | 54 (4.35) | 4 | 0.018 |
The p value less than or equal to 0.05 should be in bold.
* p value based test of mean difference equal to zero in model using generalized estimating equations to account for the correlation of multiple observations from the same subject; THA = total hip arthroplasty; FVFG = free vascularized fibular graft.