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Table 1 Baseline characteristics

From: Comparison of different clinical risk scores to predict long-term survival and neurological outcome in adults after cardiac arrest: results from a prospective cohort study

  All 2-year survivors 2-year non-survivors p-value
n 415 174 (41.9%) 241 (58.1%)  
Sociodemographics
 Age (years), mean (SD) 64.7 (14.9) 59 (14.5) 68.8 (13.7)  < 0.001
 Male gender 301 (72.5%) 141 (81.0%) 160 (66.4%)  < 0.001
Comorbidities
 Hypertension 206 (49.9%) 85 (48.9%) 121 (50.6%) 0.72
 Coronary artery disease 242 (58.6%) 114 (65.5%) 128 (53.6%) 0.015
 Congestive heart failure 58 (14.0%) 20 (11.5%) 38 (15.9%) 0.2
 COPD 40 (9.7%) 5 (2.9%) 35 (14.6%)  < 0.001
 Diabetes 91 (22.0%) 24 (13.8%) 67 (28.0%)  < 0.001
 Chronic kidney disease 61 (14.8%) 14 (8.0%) 47 (19.7%) 0.001
 End-stage liver disease 9 (2.2%) 1 (0.6%) 8 (3.3%) 0.057
 Malignant disease 47 (11.4%) 7 (4.0%) 40 (16.7%)  < 0.001
Resuscitation parameters
 IHCA 54 (13.0%) 20 (11.5%) 34 (14.2%) 0.43
 No-flow time (minutes), mean (SD) 4 (6) 1 (3) 5 (7)  < 0.001
 Low-flow time (minutes), mean (SD) 20 (17) 16 (13) 23 (19)  < 0.001
 Witnessed cardiac arrest 334 (81.1%) 162 (93.6%) 172 (72.0%)  < 0.001
 Bystander CPR 280 (67.8%) 145 (83.3%) 135 (56.5%)  < 0.001
 Bystander CPR professional 93 (40.8%) 49 (45.0%) 44 (37.0%) 0.22
Initial rhythm      < 0.001
 VF 204 (49.4%) 125 (71.8%) 79 (33.1%)  
 VT 19 (4.6%) 11 (6.3%) 8 (3.3%)  
 PEA 91 (22.0%) 12 (6.9%) 79 (33.1%)  
 Asystole 75 (18.2%) 10 (5.7%) 65 (27.2%)  
 Unknown 24 (5.8%) 16 (9.2%) 8 (3.3%)  
Clinical/laboratory parameters on ICU admission
 GCS, mean (SD) 5 (4) 7 (5) 4 (3)  < 0.001
 Endotracheal intubation 353 (86.1%) 127 (74.3%) 226 (94.6%)  < 0.001
 Haemodynamic support (mechanical) 47 (11.5%) 15 (8.8%) 32 (13.4%) 0.15
 Haemodynamic support (pharmacological) 289 (70.5%) 111 (64.9%) 178 (74.5%) 0.036
 Lactate (mmol/l), mean (SD) 6.8 (4.4) 4.9 (3.1) 8.1 (4.7)  < 0.001
 pH, mean (SD) 7.22 (0.16) 7.27 (0.11) 7.20 (0.17)  < 0.001
  1. Data presented as n (%) unless otherwise specified
  2. COPD chronic obstructive pulmonary disease, CPR cardiopulmonary resuscitation, GCS Glasgow Coma Scale, IHCA in-hospital cardiac arrest, PEA pulseless electrical activity, SD standard deviation, VF ventricular fibrillation, VT ventricular tachycardia