TABLE 4.
Regression Model 2: Analysis of West Coast Offense or Not, Strength of Schedule, Simple Rating Scale, and Attempts Statistics on Number of Concussions by Offensive Players During the 2012-2014 National Football League Regular Seasonsa
| Predictor | B (SE) | β | t | P | r 2 | sr 2 |
|---|---|---|---|---|---|---|
| West Coast offense | 1.018 (0.393) | 0.481 | 2.590 | .016 | 0.248 | 0.171 |
| SoS | –0.187 (0.189) | –0.189 | –0.989 | .332 | 0.089 | 0.025 |
| SRS | –0.033 (0.044) | –0.156 | –0.735 | .469 | 0.036 | 0.014 |
| Pass-Att | 0.055 (0.080) | 0.174 | 0.689 | .497 | 0.001 | 0.012 |
| Rush-Att | 0.070 (0.110) | 0.167 | 0.631 | .533 | 0.013 | 0.010 |
aOffensive players include running backs, fullbacks, quarterbacks, centers, offensive guards, offensive tackles, tight ends, and wide receivers. Dependent variable = number of concussions; F(5, 26) = 2.662; P = .045; R 2 = 0.339; adjusted R 2 = 0.211. B, regression coefficient; Pass-Att, pass attempts per game; Rush-Att, rush attempts per game; SE, standard error; SoS, strength of schedule; SRS, simple rating system.