Patient characteristics by type of pneumothorax
| Characteristic | Overt PTX, n = 121 | Occult PTX, n = 25 |
|---|---|---|
| Mean age, yr | 30.9 | 29.4 |
| Male sex, no. of patients | 111 | 22 |
| Mechanism, no. of patients | ||
| Gun shot | 73 | 16 |
| Stab | 48 | 9 |
| Length of hospital stay, mean, d | 7.5 | 7.9 |
| Length of ICU stay, mean, d | 2.8 | 3.3 |
ICU = intensive care unit; PTX = pneumothorax.