Table 2.
Number of concussive signs observed by head impact location
| Impact location | Total | Number of concussive symptoms | ||
| 0 | 1 | 2 or more | ||
| Inferior surface of the mandible (1) | 4 (1.7%) | 0 | 1 (25%) | 3 (75%) |
| Anterior surface of the mandible (2) | 43 (18.1%) | 0 | 2 (4.7%) | 41 (95.5%) |
| Nasal area and maxilla (3) | 39 (16.5%) | 1 (2.6%) | 4 (10.3%) | 34 (87.2%) |
| Frontal region (4) | 54 (22.8%) | 2 (3.7%) | 3 (5.6%) | 49 (90.7%) |
| Parietal and occipital region (5) | 47 (19.8%) | 1 (2.1%) | 6 (12.8%) | 40 (85.1%) |
| Temporal regions (6) | 46 (19.4%) | 0 | 5 (10.9%) | 41 (89.1%) |
| Not clear from video | 4 (1.7%) | 1 (25%) | 1 (25%) | 2 (50%) |
| Total | 237 (100%) | 5 (2.1%) | 22 (9.3%) | 210 (88.6%) |
(1) interior surface of the mandible, (2) anterior surface of the mandible, (3) nasal area and maxilla, (4) frontal region, (5) parieto-occipitalregion, and (6) temporal region.