TABLE 2.
Statistics for Players by Surgery/Index Datea
| Statistic | Surgery | Control | ||||
|---|---|---|---|---|---|---|
| Preoperative | Postoperative | P Value | Before Index | After Index | P Value | |
| Pitchers | ||||||
| Innings pitched | 76.9 ± 40.4 | 68.6 ± 44.6 | .413 | 76.9 ± 47.7 | 68.2 ± 43.9 | .502 |
| Walks plus hits per inning pitched | 1.38 ± 0.19 | 1.30 ± 0.35 | .514 | 1.37 ± 0.19 | 1.30 ± 0.36 | .945 |
| Nonpitchers | ||||||
| Plate appearances | 382.2 ± 147.7 | 327.0 ± 168.9 | .100 | 420.8 ± 145.3 | 376.8 ± 171.2 | .234 |
| On-base plus slugging | 0.771 ± 0.109 | 0.753 ± 0.088 | .019 | 0.780 ± 0.061 | 0.715 ± 0.120 | .003b |
aData are shown as mean ± SD. P value as determined by a 2-tailed paired Student t test between preoperative and postoperative and before index versus after index.
bStatistically significant difference from before index to after index (P < .007).