Demographics and clinical characteristic of burn patients with and without NI
| Variables | Total n=986 | NI n=156 | No-NI n=830 | P values |
| Male, n (%) | 642 (65.1) | 105 (64.7) | 537 (67.3) | 0.530 |
| Age (years), median (25th, 75th) | 37 (18, 49) | 37 (17, 49) | 37 (24, 37) | 0.470 |
| Diabetes, n (%) | 38 (3.9) | 11 (7.1) | 27 (3.3) | 0.024 |
| TBSA, n (%) | ||||
| <10% | 469 (47.6) | 55 (35.3) | 414 (49.9) | 0.031 |
| 10%–29% | 304 (30.8) | 38 (24.4) | 266 (32.0) | 0.056 |
| ≥30% | 213 (21.6) | 63 (40.3) | 150 (18.1) | 0.000 |
| Full thickness burn, n (%) | 221 (22.4) | 60 (38.5) | 161 (19.4) | 0.000 |
| Inhalation injury, n (%) | 46 (4.7) | 38 (24.3) | 8 (1.0) | 0.000 |
| Burn type, n (%) | ||||
| Flame | 771 (78.2) | 118 (75.6) | 653 (84.7) | 0.400 |
| Scalding | 96 (9.7) | 11 (7.1) | 85 (10.2) | 0.218 |
| Electric | 73 (7.4) | 15 (9.6) | 58 (7.0) | 0.250 |
| Others | 46 (4.7) | 12 (7.7) | 34 (4.1) | 0.051 |
| Length of hospital stay median (25th, 75th) | 14 (8, 28) | 27 (13.25, 57.75) | 13 (7, 24) | 0.000 |
| In-hospital mortality, n (%) | 54 (5.5) | 25 (16.0) | 29 (3.5) | 0.000 |
Values of P<0.05 are given in bold.
NI, nosocomial infection; TBSA, total body surface area.