Table 1.
—Characteristics of Patients in Cohort: Overall, Survivors to Hospital Discharge, and Nonsurvivors
| Parameter | Overall (N = 2,596) | Survivors (n = 2,313) | Nonsurvivors (n = 283) | P Valuea |
| Mean age, y (SD) | 63.2 (17.4) | 62.7 (17.6) | 66.6 (15.9) | < .01 |
| Sex | .69 | |||
| Female | 1,173 (45.2) | 1,042 (45.1) | 131 (46.3) | |
| Male | 1,423 (54.8) | 1,271 (54.9) | 152 (53.7) | |
| ICU | < .01 | |||
| Mixed | 760 (29.3) | 680 (29.4) | 80 (28.3) | |
| Medical | 1,162 (44.8) | 982 (42.5) | 180 (63.6) | |
| Surgical | 674 (26.0) | 651 (28.2) | 23 (8.1) | |
| Admission Source | < .01 | |||
| Direct admission | 227 (8.7) | 206 (8.9) | 21 (7.4) | |
| ED | 624 (24.0) | 556 (24.0) | 68 (24.0) | |
| Floor | 650 (25.0) | 525 (22.7) | 125 (44.2) | |
| Other ICU | 22 (0.9) | 15 (0.7) | 7 (2.5) | |
| Operating room | 339 (13.1) | 331 (14.3) | 8 (2.8) | |
| Other hospital | 173 (6.7) | 138 (6.0) | 35 (12.4) | |
| Recovery room | 535 (20.6) | 526 (22.7) | 9 (3.2) | |
| Respiratory care unit | 26 (1.0) | 16 (0.7) | 10 (3.5) | |
| DNR status | ||||
| On ICU admission | 211 (8.1) | 156 (6.7) | 55 (19.4) | < .01 |
| At end of first day | 252 (9.7) | 160 (6.9) | 92 (32.5) | < .01 |
| CPR before admission | 36 (1.4) | 17 (0.7) | 19 (6.7) | < .01 |
| Mechanical ventilation within 1 h of ICU admission | 630 (24.3) | 531 (23.0) | 99 (35.0) | < .01 |
| Surgical procedure | 874 (33.7) | 857 (37.1) | 17 (6.0) | < .01 |
| Hospital discharge location | ||||
| Death | 283 (10.9) | 0 | 283 (100) | |
| Home | 1,542 (59.4) | 1,542 (66.7) | 0 | |
| Rehabilitation center | 80 (3.1) | 80 (3.5) | 0 | |
| Skilled nursing facility | 460 (17.7) | 460 (19.9) | 0 | |
| Other hospital | 122 (4.7) | 122 (5.3) | 0 | |
| Other | 109 (4.2) | 109 (4.7) | 0 | |
| Acute physiology score, mean (SD) | 42.5 (23.6) | 38.8 (19.4) | 72.3 (32.3) | < .01 |
| APACHE III predicted hospital death, mean % (SD) | 16.5 (21.4) | 12.6 (16.7) | 47.7 (28.4) | < .01 |
| APACHE IV predicted hospital death, mean % (SD) | 14.7 (19.4) | 11.3 (14.8) | 42.9 (27.9) | < .01 |
| SAPS 3 score, mean (SD) | 45.3 (13.2) | 43.7 (12.3) | 58.6 (13.0) | < .01 |
| SAPS 3 predicted hospital death, mean % (SD) | 16.4 (16.8) | 14.2 (14.6) | 34.3 (21.8) | < .01 |
| MPM0III predicted hospital death, mean % (SD) | 13.9 (14.2) | 12.5 (12.6) | 25.4 (20.5) | < .01 |
Data given as No. (%) unless otherwise indicated. Percentages given are percentages of the overall group, survivor group, or nonsurvivor group. For example, there were 80 nonsurvivors in the Mixed ICU group, accounting for 28.3% (80 of 283) of the nonsurvivors overall. APACHE = Acute Physiology and Chronic Health Evaluation; DNR = do not resuscitate; MPM = Mortality Probability Model; SAPS = Simplified Acute Physiology Score.
a
P value is for comparison between survivors and nonsurvivors.