Table 2.
Associated Injury Characteristics for an Abnormal Neurological Examination Following Upper Arm Gunshot Wounds.
| Injury Characteristic | Total | Abnormal examination | Normal examination | P value |
|---|---|---|---|---|
| No. (%) | 139 | 49 (35) | 90 (65) | |
| Mechanism of injury | .293 | |||
| Violence | 137 | 49 | 88 | |
| Self | 1 | 0 | 1 | |
| Accidental | 1 | 0 | 1 | |
| Arm involved | .959 | |||
| Right | 62 | 22 | 40 | |
| Left | 77 | 27 | 50 | |
| Humerus fracture | 38 (27) | 19 (39) | 19 (21) | .026 |
| Location of humerus fracture | .003 | |||
| Proximal third | 10 | 1 | 9 | |
| Middle third | 16 | 11 | 5 | |
| Distal third | 12 | 7 | 5 | |
| Brachial artery injury | 17 (12) | 14 (29) | 3 (2) | <.001 |
| Transection | 16 | 14 | 2 | |
| Dissection | 1 | 0 | 1 | |
| Location of gunshot wound | .002 | |||
| Proximal brachium | 41 | 4 | 37 | |
| Middle brachium | 66 | 28 | 38 | |
| Distal brachium | 32 | 17 | 15 |
Note. Nerve deficits were significantly more likely to be present in the event of a humerus fracture or brachial artery injury.