Table 3.
Mean, Median, and Range of Unadjusted and Unadjusted Contact Exposure Estimates, by Playing Level and Number of Concussions Sustained
| Unadjusted | Adjusteda | |||||
|---|---|---|---|---|---|---|
| Mean (SD) | Median | Range | Mean (SD) | Median | Range | |
| College only | ||||||
| Low concussionb (n=15) | 897.39 (320.16) | 773.13 | 467.25–1590.00 | 956.98 (323.39) | 835.08 | 550.54–1661.37 |
| High concussionc (n=17) | 1263.43 (360.16) | 1244.13 | 793.75–2247.00 | 1347.75 (383.58) | 1293.76 | 824.41–2415.54 |
| College mean | 1091.85 (384.30) | 1027.13 | 467.25–2247.00 | 1164.58 (403.02) | 1119.27 | 550.54–2415.54 |
| NFL | ||||||
| Low concussion (n=16) | 2743.51 (1081.34) | 2566.13 | 1085.75–5070.63 | 2928.40 (1094.11) | 2755.31 | 1181.15–5263.38 |
| High concussion (n=16) | 2611.48 (1391.59) | 2680.63 | 142.88–5445.00 | 2786.72 (1387.89) | 2835.01 | 447.87–5611.49 |
| NFL mean | 2677.50 (1227.73) | 2612.44 | 142.88–5445.00 | 2857.56 (1231.45) | 2755.31 | 447.87–5611.49 |
| Overall mean | 1884.67 (1205.37) | 1452.00 | 142.88–5445.00 | 2011.07 (1246.61) | 1530.57 | 447.87–5611.49 |
| ANOVA p values | ||||||
| Low vs. high concussion | 0.83 | 0.82 | ||||
| College only vs. NFL | <0.001 | <0.001 | ||||
| Interaction term | 0.28 | 0.25 | ||||
a
Weights added to game contact hours are based on primary positions played.
b
Zero to one concussions.
c
Two or more concussions.