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Table 2 Patient Demographics and OHCA Characteristics

From: Assessing unrealised potential for organ donation after out-of-hospital cardiac arrest

  Total Madrid Criteria San Carlos, Madrid Criteria Maastricht Criteria Paris Criteria p-value††
Best-case Worst-case Best-case Worst-case
n = 12,546 n = 1202 n = 660 n = 2460 n = 1987 n = 648 n = 544  
Patient Demographics  
 Mean age in years (SD) 65.2 (18.5) 48.5 (9.0) 43.5 (9.8) 49.6 (12.8) 50.1 (11.8) 42.4 (9.2) 43.3 (8.6)
 Male (%) 8125 (64.8) 975 (81.1) 526 (79.7) 1940 (78.9) 1653 (83.2) 563 (86.9) 494 (90.8) <.05
Ethnicity (%)  
 Chinese 8492 (67.7) 627 (52.2) 333 (50.5) 1327 (53.9) 1050 (52.9) 323 (49.8) 279 (51.3) <.05
 Malay 1961 (15.6) 276 (23.0) 150 (22.7) 540 (22.0) 430 (21.6) 112 (17.3) 86 (15.8) <.05
(excl. Paris)
 Indian 1358 (10.8) 181 (15.0) 99 (15.0) 370 (15.0) 320 (16.1) 116 (17.9) 98 (18.0) <.05
 Others 735 (5.9) 118 (9.8) 78 (11.8) 223 (9.1) 187 (9.4) 97 (15.0) 81 (14.9)
Presence of comorbidities precluding organ donation (%) 8335 (66.4)
OHCA Characteristics (%)  
 Witnessed Arrest 7502 (59.8)
First Arrest Rhythm  
 Asystole 6107 (48.7) 429 (35.7) 238 (36.0) 995 (40.4) 736 (37.0) 265 (40.9) 211 (38.8) <.05
 PEA 3519 (28.0) 307 (25.5) 156 (23.6) 700 (28.5) 542 (27.3) 140 (21.6) 104 (19.1) >.05
 VF 1908 (15.2) 371 (30.9) 201 (30.5) 589 (23.9) 563 (28.3) 194 (29.9) 186 (34.2) <.05
 VT 58 (0.5) 6 (0.5) 2 (0.3) 11 (0.4) 10 (0.5) 2 (0.3) 2 (0.4) >.05
Bystander CPR 5477 (43.7) 690 (57.4) 442 (67.0) 1112 (45.2) 899 (45.2) 334 (51.5) 292 (53.7) <.05 (excl. Maastricht)
Median time to CPR initiation, min (IQR) 15.00 (12.08) 12.00 (8.08) 11.00 (10.00) 14.00 (10.23) 14.00 (10.00) 14.47 (9.45) 14.40 (9.19)
Bystander AED 399 (3.2) 74 (6.2) 52 (7.9) 112 (4.6) 97 (4.9) 41 (6.3) 39 (7.2) <.05
Pre-hospital Defibrillation 3202 (25.5) 577 (48.0) 321 (48.6) 947 (38.5) 892 (44.9) 311 (48.0) 299 (55.0) <.05
  1. Examples include trauma, Acquired Immunodeficiency Syndrome (AIDS), signs of infection, and unknown causes of death
  2. PEA = pulseless electrical activity; VF = ventricular fibrillation; VT = ventricular tachycardia
  3. †† Two-sample z-test was used for all statistical analyses