Table 1.
Demographic variables of the burn patients
| Variable | Survival, n = 132,531 | Death, n = 4530 | P value | ||
|---|---|---|---|---|---|
| Missing | Value | Missing | Value | ||
| Age, years (mean ± SD) | 30,542 | 30.5 ± 22.4 | 704 | 56.5 ± 22.5 | < 0.001* |
| Children < 18 years, n (%) | 33,601 (32.9) | 233 (6.1) | < 0.001* | ||
| Gender, n (%) | 0 | 0 | < 0.001* | ||
| Male | 91,814 (69.3) | 2933 (64.7) | |||
| Female | 40,717 (30.7) | 1597 (35.3) | |||
| Race, n (%) | 5564 | 197 | < 0.001* | ||
| Caucasian | 74,403 (58.6) | 2835 (65.4) | |||
| African-American | 24,024 (18.9) | 878 (20.3) | |||
| Hispanic | 19,770 (15.6) | 388 (9.0) | |||
| Other | 8770 (6.9) | 232 (5.3) | |||
| Alcohol, n (%) | N/A | 3792 (2.9) | N/A | 226 (5.0) | < 0.001* |
| Illicit drug use, n (%) | N/A | 2959 (2.2) | N/A | 130 (2.9) | 0.005* |
| Smoker, n (%) | N/A | 6685 (5.0) | N/A | 263 (5.8) | 0.022* |
| Uninsured, n (%) | 14,057 | 17,426 (14.7) | 538 | 590 (14.8) | 0.903 |
| Comorbidities, anya, n (%) | N/A | 19,281 (14.5) | N/A | 1206 (26.6) | < 0.001* |
| CHF | 871 (0.7) | 147 (3.2) | < 0.001* | ||
| Diabetes | 3901 (2.9) | 291 (6.4) | < 0.001* | ||
| Hypertension | 8850 (6.7) | 631 (13.9) | < 0.001* | ||
| Psychiatric illness | 4512 (3.4) | 227 (5.0) | < 0.001* | ||
| Obesity | 1405 (1.1) | 87 (1.9) | < 0.001* | ||
| Respiratory disease | 5464 (4.1) | 291 (6.4) | < 0.001* | ||
*Significant with p < 0.05
aAlcoholism, bleeding disorder, chemotherapy, congenital anomalies, CHF, connective tissue disease, current smoker, dialysis, CVA, diabetes mellitus, cancer, drug abuse, esophageal varices, dependent health status, history of angina/MI, hypertension, immunodeficiency, neurological impairment, obesity, other, prematurity, psychiatric illness, respiratory disease, steroid use, and transplant of organ(s)
CHF congestive heart failure, CVA cerebrovascular accident, MI myocardial infarction, N/A not available, SD standard deviation