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Table 1 Demographic data of cardiac arrest patients

From: Maximum emergency department overcrowding is correlated with occurrence of unexpected cardiac arrest

  Total IHCA (n = 187) Survivor (n = 108) Non-survivor (n = 79) P
Sex (male) 121 (64.7) 69 (63.9) 52 (65.8) 0.08
Age, years 67.0 (55.0–76.0) 67.0 (55.0–74.0) 71.0 (58.5–77.5) 0.18
Medical history
 Cardiac arrest 5 (2.7) 3 (2.8) 2 (2.5) 0.92
 Myocardial infarction 12 (6.4) 11 (10.2) 1 (1.3) 0.01
 PCI history 16 (8.6) 12 (1.1) 4 (5.1) 0.14
 CABG history 7 (3.7) 5 (4.6) 2 (2.5) 0.46
 Arrhythmia 28 (15.0) 22 (20.4) 6 (7.6) 0.02
 Heart failure 24 (12.8) 18 (16.7) 6 (7.6) 0.07
 Hypertension 66 (35.3) 47 (43.5) 19 (24.1) < 0.01
 Diabetes 56 (29.9) 41 (38.0) 15 (19.0) < 0.01
 Chronic lung disease 16 (8.6) 9 (8.3) 7 (8.9) 0.89
 Stroke 16 (8.6) 9 (8.3) 7 (8.9) 0.90
 Chronic renal failure 22 (11.8) 15 (13.9) 7 (8.9) 0.29
 Liver cirrhosis 9 (4.8) 6 (5.6) 3 (3.8) 0.58
 Malignancy 59 (31.6) 27 (25.0) 32 (40.5) 0.02
Presumed arrest cause
 Cardiac 61 (32.6) 37 (34.3) 24 (30.4) 0.58
 Respiratory 42 (22.5) 30 (27.8) 12 (15.2) 0.04
 Bleeding 20 (10.7) 10 (9.3) 10 (12.7) 0.46
 Others 64 (33.3) 30 (28.7) 33 (41.7) 0.06
  1. Data are presented as median with interquartile range or percentage
  2. Abbreviations: CABG coronary artery bypass graft, CPR cardiopulmonary resuscitation, IHCA in-hospital cardiac arrest, PCI percutaneous coronary intervention