Incidences of patients sustaining head wounds in those wearing a combat helmet versus those that were unprotected and ORs
| PPE worn | Head injury | No head injury | Total | OR |
|---|---|---|---|---|
| Wearing helmet (n=67) | 8/67 (0.12) | 59/67 (0.88) | 67 | 0.12/0.88=0.14 |
| No helmet (n=107) | 29/107 (0.27) | 78/107 (0.73) | 107 | 0.27/0.73=0.37 |
| Total | 36 | 138 | 174 | 0.37/0.14=2.7 |