Table 1. Baseline characteristics of patients stratified according to 30-day mortality and neurologic outcomes.
| Variables | Total | 30-day Mortality | 30-day CPC score | 30-day CPC score | |||
|---|---|---|---|---|---|---|---|
| Death (n = 49) | Survival (n = 34) | p-value | Good (n = 12) | Poor (n = 71) | p-value | ||
| Age, years | 61.4±15.9 | 59.2±17.2 | 64.6±13.5 | 0.13 | 45±18.0 | 64.2±13.8 | <0.001* |
| Sex (Female) | 20 (23.1) | 10 (20.4) | 10 (29.4) | 3 (25.0) | 17 (23.9) | >0.999 | |
| Hypertension | 36 (43.4) | 22 (44.9) | 14 (41.2) | 0.737 | 3 (25.0) | 33 (46.5) | 0.165 |
| Diabetic mellitus | 24 (28.9) | 12 (24.5) | 12 (35.3) | 0.286 | 2 (16.7) | 22 (31.0) | 0.494 |
| Pulmonary disease | 3 (3.6) | 3 (6.1) | 0 (0.0) | 0.266 | 1 (8.3) | 2 (2.8) | 0.378 |
| Malignancy | 4 (4.8) | 2 (4.1) | 2 (5.9) | >0.999 | 0 (0.0) | 4 (5.6) | >0.999 |
| Cardiovascular disease | 20 (24.1) | 13 (26.5) | 7 (20.6) | 0.534 | 3 (25) | 17 (23.9) | >0.999 |
| Previous ACS | 7 (8.4) | 5 (10.2) | 2 (5.9) 0 | 0.695 | 1 (8.3) | 6 (8.5) | >0.999 |
| Renal disease | 13 (15.7) | 9 (18.4) | 4 (11.8) | 0.416 | 0 (0.0) | 13 (18.3) | 0.198 |
| Cardiac origin | 47 (56.6) | 30 (61.2) | 17 (50.0) | 0.31 | 10 (83.3) | 37 (52.1) | 0.444 |
| Cardiac arrest in public place | 35 (42.7) | 22 (44.9) | 13 (39.4) | 0.621 | 4 (33.3) | 31 (44.3) | 0.478 |
| Pre-hospital ROSC | 1 (1.2) | 1 (2.0) | 0 (0.0) | >0.999 | 1 (8.3) | 0 (0.0) | 0.145 |
| Initial rhythm shockable | 22 (26.5) | 17 (34.7) | 5 (14.7) | 0.043* | 8 (66.7) | 14 (19.7) | 0.002* |
| Total CPR time in hospital, min | 13.5±11.2 | 12.8±10.5 | 14.5±12.3 | 0.496 | 14.3±12.9 | 13.3±11.0 | 0.793 |
| Arrest time, min | 31.0±15.6 | 29.3±14.7 | 33.4±16.9 | 0.243 | 35.1±15.9 | 30.3±15.6 | 0.323 |
| Bystander CPR | 19 (23.5) | 10 (20.8) | 9 (27.3) | 0.502 | 3 (25.0) | 16 (23.2) | >0.999 |
| Hypothermia | 44 (53.0) | 27 (55.1) | 17 (50.0) | 0.647 | 6 (50.0) | 38 (53.5) | 0.821 |
| Witness | 31 (37.35) | 17 (34.69) | 14 (41.18) | 0.548 | 4 (33.33) | 27 (38.03) | >0.999 |
| BUN, mg/dL | 26.6±19.2 | 28.0±22.4 | 24.6±13.1 | 0.39 | 21.9±22.0 | 27.4±18.7 | 0.36 |
| Cr, mg/dL | 2.6±3.2 | 2.9±3.7 | 2.2±2.2 | 0.244 | 1.4±0.7 | 2.8±3.4 | 0.002* |
| Albumin, g/dL | 3.4±0.7 | 3.5±0.6 | 3.3±0.9 | 0.296 | 3.6±0.8 | 3.4±0.7 | 0.393 |
| Platelet count | 139.5±64.9 | 173.0±53.3 | 109.8±61.7 | 0.04* | 152.3±67.4 | 135.6±66.4 | 0.668 |
| Haematocrit, % | 40.3±9.3 | 40.4±9.3 | 40.1±9.4 | 0.905 | 43.3±13.1 | 39.8±8.5 | 0.387 |
| RDW day 1, % | 13.9±1.6 | 13.8±1.6 | 14.1±1.5 | 0.285 | 13.2±1.0 | 14.0±1.6 | 0.087 |
| WBC day 1 | 14,841.3±7642.2 | 16,678.6±8255.9 | 12,193.5±5809.1 | 0.005* | 16,085.8±8692.0 | 14,631.0±7498.8 | 0.545 |
| DNI day 1, % | 5.3±9.1 | 3.6±5.1 | 7.7±12.5 | 0.076 | 2.3±2.9 | 5.8±9.6 | 0.02* |
| DNI day 2, % | 10.7±12.8 | 7.5±7.9 | 15.3±16.8 | 0.015* | 7.0±6.8 | 11.3±13.5 | 0.099 |
| DNI day 3, % | 8.3±9.7 | 5.3±6.3 | 15.3±12.5 | 0.003* | 4.3±3.9 | 9.2±10.4 | 0.009* |
| DNI day peak, (%) | 14.3±14.4 | 10.9±11.1 | 20.8±17.7 | 0.017* | 8.0±6.4 | 15.7±15.3 | 0.008* |
| DNI peak, day (day) | 3.1±3.7 | 2.5±2.0 | 4.2±5.6 | 0.17 | 2.7±3.0 | 3.2±3.9 | 0.635 |
| Antibiotics prophylaxis | 50 (82.0) | 41 (85.4) | 9 (69.2) | 0.226 | 11(91.7) | 39 (79.6) | 0.438 |
| Inotrophics | 44 (72.1) | 35 (72.9) | 9 (69.2) | >0.999 | 8 (66.7) | 36 (73.5) | 0.723 |
| APACHE II | 19.0±5.7 | 18.7±6.3 | 19.5±4.7 | 0.508 | 17.1±7.4 | 19.3±5.3 | 0.209 |
CPC: cerebral performance category, ACS: acute coronary syndrome, ROSC: return of spontaneous circulation, CPR: cardiopulmonary resuscitation, BUN: blood urea nitrogen, Cr: creatinine, RDW: red cell distribution width, APACHE II:Acute Physiology and Chronic Health Evaluation II, DNI: delta neutrophil index
*: p<0.05.