TABLE 4.
Performance Comparison Before and After Index Season (Controls)a
| Before | After | P Valueb | 95% CIc | |
|---|---|---|---|---|
| Mean games played per season | 364 ± 276 | 217 ± 142 | .009 | 38 to 255 |
| Goals per season, n | 8.70 ± 8.70 | 6.82 ± 7.00 | .374 | –2.3 to 6.1 |
| Assists per season, n | 12.8 ± 11.3 | 11.7 ± 9.47 | .673 | –4.3 to 6.7 |
| Points scored per season | 21.6 ± 19.6 | 18.3 ± 15.7 | .497 | –6.2 to 13 |
| +/– goal differential per seasond | –0.236 ± 6.62 | –0.815 ± 4.59 | .718 | –2.6 to 3.8 |
| Penalty time per season, min | 40.7 ± 29.9 | 36.6 ± 24.8 | .577 | –10 to 19 |
| Even-strength goals per season, n | 6.88 ± 5.96 | 5.20 ± 4.82 | .269 | –1.3 to 4.7 |
| Power play goals per season, n | 2.41 ± 2.67 | 1.84 ± 2.14 | .400 | –0.78 to 1.9 |
| Short-handed goals per season, n | 0.640 ± 1.58 | 0.235 ± 0.308 | .231 | –0.26 to 1.1 |
| Shots per season, n | 91.4 ± 58.8 | 87.1 ± 52.0 | .782 | –26 to 35 |
| Shooting percentage per season, % | 8.92 ± 3.84 | 6.96 ± 3.35 | .053 | –0.03 to 3.9 |
| Time on ice per season, min | 861 ± 371 | 860 ± 359 | .995 | –200 to 201 |
| Time on ice per game, min | 14.5 ± 4.27 | 14.6 ± 4.37 | .966 | –2.4 to 2.3 |
aValues are expressed as mean ± SD. Values in bold and italics indicate statistically significant differences between groups.
bPaired-samples Student t test with Bonferroni correction (statistical significance, P < .01).
c95% CI of the difference between before and after values.
dA measure of how the player’s team did when he was on the ice. If the player has a positive number, more goals were scored by his team when he was on the ice than allowed; if he has a negative number, his team allowed more goals than they scored when he was on the ice.