Table 1 Baseline characteristics of study patients stratified by survival outcome
Variables | All patients | Patients surviving to hospital discharge | Death at hospital discharge | P value |
|---|---|---|---|---|
(n = 340) | (n = 50) | (n = 290) | ||
Age, y, mean (SD) | 65.9 (16.2) | 65.2 (16.2) | 66.0 (16.2) | 0.75 |
Male, n (%) | 214 (63) | 37 (74) | 177 (61) | 0.08 |
Comorbidities, n (%) | Â | Â | Â | Â |
 Heart failure | 93 (27) | 17 (34) | 76 (26) | 0.30 |
 Myocardial infarction | 45 (13) | 9 (18) | 36 (12) | 0.27 |
 Arrhythmia | 55 (16) | 11 (22) | 44 (15) | 0.22 |
 Hypotension | 68 (20) | 8 (16) | 60 (21) | 0.57 |
 Respiratory insufficiency | 236 (69) | 34 (68) | 202 (70) | 0.87 |
 Renal insufficiency | 138 (41) | 22 (44) | 116 (40) | 0.64 |
 Hepatic insufficiency | 64 (19) | 4 (8) | 60 (21) | 0.03 |
 Metabolic or electrolyte abnormality | 66 (19) | 9 (18) | 57 (20) | 1 |
 Diabetes mellitus | 112 (33) | 23 (46) | 89 (31) | 0.05 |
 Baseline evidence of motor, cognitive, or functional deficits | 63 (19) | 12 (24) | 51 (18) | 0.32 |
 Acute stroke | 16 (5) | 3 (6) | 13 (5) | 0.71 |
 Favorable neurological status 24 hours before cardiac arrest | 143 (42) | 25 (50) | 118 (41) | 0.28 |
 Pneumonia | 111 (33) | 19 (38) | 92 (32) | 0.42 |
 Metastatic cancer or any blood-borne malignancy | 68 (20) | 6 (12) | 62 (21) | 0.18 |