Table 7.
Comparison of outcome measures: unadjusted and adjusted for case-mix.
| INTENT TO TREAT | AS TREATED | ||||
|---|---|---|---|---|---|
| Outcome | Unadjusted | Adjusted1 | Unadjusted | Adjusted1 | |
| Mean (SE) | Mean (SE) | Mean (SE) | Mean (SE) | ||
| Total Cost | |||||
| (N=142) | MMF | $11,924 (1,983) | $17,770 (3,954) | $7,206 (807) | $11655 (3294) |
| ORIF | $15,115 (1,792) | $23,454 (3,782) | $26,089 (2,805) | $30,760 (3303) | |
| Difference2 | $3,191 (2,673) | $5,684 (2,752) ** | $18,882 (2,919) *** | $19,105 (2,512) *** | |
| Pain at 6 Months | |||||
| (N=73) | MMF | 1.22 (.39) | 0.74 (1.3) | 1.39 (.35) | 0.42 (1.4) |
| ORIF | 1.93 (.48) | 1.65 (1.3) | 2.08 (.67) | 1.67 (1.3) | |
| Difference | 0.71 (.62) | 0.91 (.70) | 0.70 (.76) | 1.245 (.785) | |
| Pain at 12 Months | |||||
| (N=77) | MMF | 0.58 (.30) | 1.05 (1.3) | 1.00 (.34) | 1.08 ( 1.4) |
| ORIF | 1.78 (.52) | 2.40 (1.2) | 1.71 (.67) | 2.10 (1.2) | |
| Difference | 1.2 (.60) ** | 1.35 (.66) ** | 0.71 (.76) | 1.02 (.788) | |
1
Adjusted for gender, race, employment status, major trauma, nerve deficit, age, and injury severity
2
Significance for differences in total costs was assessed on a log10 scale in order to satisfy assumptions for statistical tests. Actual values and differences are expressed in real terms for interpretability.
*
Significant at alpha=.10
**
Significant at alpha=.05
***
Significant at alpha=.001