TABLE 1.
Baseline Patient Characteristics of 2,291 Patients Admitted for Surgical/Trauma Intensive Care
| Variables | Trauma
|
Nontrauma
|
||||
|---|---|---|---|---|---|---|
| Men (n = 1,024) | Women (n = 383) | pa | Men (n = 471) | Women (n = 413) | p | |
| Age, mean (SD), yr | 42.2 (18.1) | 47.0 (19.4) | < 0.0001 | 59.4 (13.5) | 57.7 (15.8) | 0.082 |
|
| ||||||
| Race, % | ||||||
| White | 80.7 | 87.2 | 0.016 | 84.3 | 86.0 | 0.73 |
| Black | 12.5 | 8.4 | 12.1 | 10.4 | ||
| Other | 6.8 | 4.4 | 3.6 | 3.6 | ||
|
| ||||||
| Pre-ICU admission medical history, % | ||||||
| No listed comorbidities | 66.3 | 57.4 | 0.0021 | 11.5 | 11.6 | 0.94 |
| Diabetes mellitus | 7.2 | 10.7 | 0.034 | 27.8 | 29.3 | 0.63 |
| Cardiac disease | 11.9 | 14.1 | 0.27 | 34.3 | 30.8 | 0.27 |
| Dialysis dependence | 0.2 | 0.8 | 0.13 | 6.4 | 4.1 | 0.13 |
| Malignancy | 2.5 | 2.1 | 0.62 | 30.0 | 19.6 | 0.0004 |
| Hepatic dysfunction | 3.8 | 2.9 | 0.40 | 22.1 | 13.8 | 0.0034 |
| Chronic corticosteroid use | 0.8 | 1.8 | 0.14 | 7.9 | 9.2 | 0.48 |
|
| ||||||
| Menopausal status, % | ||||||
| Premenopausal | NA | 44.4 | NA | NA | 17.4 | NA |
| Perimenopausal | NA | 15.4 | NA | NA | 12.8 | NA |
| Postmenopausal | NA | 40.2 | NA | NA | 69.7 | NA |
|
| ||||||
| Solid-organ transplants, % | 0.2 | 0.3 | > 0.99 | 17.0 | 12.1 | 0.041 |
|
| ||||||
| Trauma mechanism, % | ||||||
| Blunt | 86.9 | 93.9 | 0.0002 | NA | NA | NA |
| Penetrating | 13.1 | 6.1 | NA | NA | NA | |
|
| ||||||
| Patients with infections present at the time of ICU admission, % | 66 (6.4) | 24 (6.3) | 0.90 | 167 (35.5) | 164 (39.7) | 0.19 |
|
| ||||||
| World Health Organization score at ICU admission, mean (SD) | 0.15 (0.52) | 0.25 (0.65) | 0.0093 | 1.3 (1.2) | 1.2 (1.2) | 0.56 |
|
| ||||||
| McCabe score at ICU admission, mean (SD) | 0.22 (0.46) | 0.24 (0.47) | 0.43 | 1.2 (0.8) | 1.0 (0.7) | < 0.0001 |
|
| ||||||
| Acute Physiology and Chronic Health Evaluation II score, mean (SD) | 15.9 (6.4) | 16.8 (5.9) | 0.012 | 19.6 (6.9) | 18.4 (6.5) | 0.013 |
|
| ||||||
| Marshall or Multiple Organ Dysfunction score, mean (SD) | 7.5 (3.6) | 7.2 (3.6) | 0.16 | 7.8 (4.7) | 7.0 (4.5) | 0.015 |
|
| ||||||
| Injury Severity Score, mean (SD) | 30.2 (12.5) | 29.7 (12.0) | 0.55 | NA | NA | NA |
|
| ||||||
| Probability of trauma survival, mean (SD) | 0.68 (0.32) | 0.71 (0.30) | 0.26 | NA | NA | NA |
|
| ||||||
| Do-not-resuscitate status at time of ICU admission, % | 1.1 | 0.8 | 0.77 | 1.9 | 1.7 | 0.81 |
NA = not applicable.
a
Student t test for continuous variables; chi-square test or Fisher exact test for categorical variables.