Table 3.
Regression: Positional Differences in Concussion Outcomes
| χ2 (p value) | B (p value) | χ2 (p value) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | OL | DL | RB | LB | DB | ST | TE | WR | QB | Position | Team | Duration | |
| During your football career | |||||||||||||
| Diagnosed concussion | 18.69 (0.411) | Ref | −0.03 (0.851) | 0.02 (0.899) | −0.17 (0.215) | −0.05 (0.734) | −0.27 (0.213) | 0.08 (0.675) | −0.06 (0.707) | 0.05 (0.808) | 4.31 (0.828) | 11.82 (0.224) | 2.00 (0.158) |
| Undiagnosed concussion | 33.74 (0.014) | Ref | −0.41 (0.492) | −0.66 (0.333) | −1.10 (0.064) | −1.79 (0.002) | −2.35 (0.010) | −0.39 (0.620) | −1.28 (0.042) | −1.93 (0.019) | 17.60 (0.024) | 14.42 (0.108) | 0.77 (0.380) |
| Ding | 36.49 (0.006) | Ref | −5.22 (0.383) | 12.78 (0.063) | −5.70 (0.342) | −10.14 (0.081) | −9.87 (0.269) | −7.09 (0.380) | −8.60 (0.187) | −5.84 (0.469) | 14.12 (0.079) | 22.32 (0.008) | 1.02 (0.312) |
| During the 2012 football season | |||||||||||||
| Diagnosed concussion | 16.94 (0.527) | Ref | −0.05 (0.443) | 0.10 (0.190) | −0.10 (0.117) | −0.04 (0.496) | −0.17 (0.100) | −0.05 (0.571) | −0.03 (0.669) | −0.11 (0.234) | 10.57 (0.227) | 5.95 (0.745) | 0.33 (0.566) |
| Undiagnosed concussion | 35.59 (0.008) | Ref | −0.46 (0.050) | −0.59 (0.027) | −0.53 (0.024) | −0.73 (0.001) | −1.16 (0.002) | −0.75 (0.017) | −0.58 (0.021) | −1.01 (0.002) | 20.44 (0.009) | 15.48 (0.079) | 0.27 (0.601) |
| Ding | 77.29 (<0.001) | Ref | −1.95 (0.002) | −1.20 (0.087) | −1.19 (0.053) | −2.48 (<0.001) | −3.68 (<0.001) | −1.59 (0.055) | −2.26 (0.001) | −2.18 (0.010) | 29.46 (<0.001) | 49.39 (<0.001) | 1.73 (0.189) |
Reflects differences in concussion diagnosis outcomes, based on GLM regression including position, team membership, and duration of football career.
OL, offensive linemen; DL, defensive linemen; RB, running backs; DB, defensive backs; ST, special teams; TE, tight end; WR, wide receiver; QB, quarterback.