Table 1 Baseline Characteristics of Study Patients.
Variables | All Patients (n = 1060) | Patients With Favourable Neurological Outcome at Hospital Discharge (n = 59) | Patients Without Favourable Neurological Outcome at Hospital Discharge (n = 1001) | p value | Odds ratio (95% confidence interval) |
|---|---|---|---|---|---|
Age, years, median (IQR) | 68.2 (56.5–78.9) | 62.6 (53.2–73.6) | 68.5 (56.9–79.4) | 0.007 | 0.98 (0.97–1.00) |
Male, n (%) | 649 (61.2) | 44 (80.0) | 605 (60.4) | 0.03 | 1.92 (1.03–3.76) |
Comorbidities, n (%) | |||||
Heart failure, this admission | 208 (19.6) | 17 (28.8) | 191 (19.1) | 0.07 | 1.72 (0.90–3.16) |
Heart failure, prior admission | 171 (16.1) | 11 (18.6) | 160 (16.0) | 0.59 | 1.20 (0.55–2.42) |
Myocardial infarction, this admission | 120 (11.3) | 12 (20.3) | 108 (10.8) | 0.02 | 2.11 (0.99–4.20) |
Myocardial infarction, prior admission | 39 (3.7) | 4 (6.8) | 35 (3.5) | 0.19 | 2.01 (0.50–5.91) |
Arrhythmia | 192 (18.1) | 9 (15.3) | 183 (18.3) | 0.56 | 0.80 (0.34–1.69) |
Hypotension | 260 (24.5) | 12 (20.3) | 248 (24.8) | 0.44 | 0.78 (0.37–1.51) |
Respiratory insufficiency | 764 (72.1) | 37 (62.7) | 727 (72.6) | 0.10 | 0.63 (0.36–1.15) |
Renal insufficiency | 446 (42.1) | 24 (40.7) | 422 (42.2) | 0.82 | 0.94 (0.53–1.65) |
Hepatic insufficiency | 182 (17.2) | 8 (13.6) | 174 (17.4) | 0.45 | 0.75 (0.30–1.62) |
Metabolic or electrolyte abnormality | 186 (17.5) | 8 (13.6) | 178 (17.8) | 0.41 | 0.73 (0.29–1.58) |
Diabetes mellitus | 354 (33.4) | 17 (28.8) | 337 (33.7) | 0.44 | 0.80 (0.42–1.46) |
Baseline evidence of motor, cognitive, or functional deficits | 329 (31.0) | 13 (22.0) | 316 (31.6) | 0.12 | 0.61 (0.30–1.17) |
Acute stroke | 45 (4.2) | 1 (1.7) | 44 (4.4) | 0.32 | 0.38 (0.01–2.29) |
Favourable neurological status 24 h before cardiac arrest | 462 (43.6) | 36 (61.0) | 426 (42.6) | 0.006 | 2.11 (1.20–3.79) |
Pneumonia | 337 (31.8) | 8 (13.6) | 329 (32.9) | 0.002 | 0.32 (0.13–0.69) |
Bacteraemia | 86 (8.1) | 0 (0) | 86 (8.6) | 0.02 | 0.09 (0.006–1.45) |
Cirrhosis | 70 (6.6) | 1 (1.7) | 69 (6.9) | 0.12 | 0.23 (0.006–1.40) |
Chronic obstructive pulmonary disease | 62 (5.8) | 4 (6.8) | 58 (5.8) | 0.75 | 1.18 (0.30–3.37) |
Dialysis | 191 (18.0) | 10 (16.9) | 81 (8.1) | 0.83 | 0.92 (0.41–1.89) |
Metastatic cancer or any blood-borne malignancy | 247 (23.3) | 4 (6.8) | 243 (24.3) | 0.002 | 0.23 (0.06–0.62) |
Charlson comorbidity index, median (IQR) | 2 (1–4) | 2 (1–3.8) | 2 (1–4) | 0.004 | 0.83 (0.72–0.95) |
