Table 1 Baseline characteristics of the study population according to acute kidney injury development
Variable | All patients (n = 275) | No AKI (n = 100) | AKI (n = 175) | P value |
|---|---|---|---|---|
Demographics | ||||
 Male sex | 187/275 (68) | 70/100 (70) | 117/175 (67) | 0.591 |
 Age ≥ 60 years | 139/275 (51) | 40/100 (40) | 99/175 (57) | 0.008 |
 Weight ≥ 60 kg | 178/272 (65) | 63/98 (64) | 115/174 (66) | 0.764 |
Medical history | ||||
 Heart failure | 7/272 (3) | 0/100 (0) | 7/172 (4) | 0.050 |
 Hypertension | 114/273 (42) | 30/100 (30) | 84/173 (49) | 0.003 |
 Diabetes mellitus | 67/273 (25) | 17/100 (17) | 50/173 (29) | 0.028 |
 Chronic kidney disease | 10/272 (4) | 0/100 (0) | 10/172 (6) | 0.015 |
Resuscitation | ||||
 Arrest cause |  |  |  | 0.841 |
  Medical or uncertain | 224/275 (82) | 83/100 (83) | 141/175 (81) |  |
  Trauma | 4/275 (2) | 0/100 (0) | 4/175 (2) |  |
  Poisoning | 3/275 (1) | 1/100 (1) | 2/175 (1) |  |
  Drowning | 1/275 (0) | 1/100 (1) | 0/175 (0) |  |
  Asphyxia | 43/275 (16) | 15/100 (15) | 28/175 (16) |  |
 Arrest location |  |  |  | 0.550 |
  Home | 134/275 (49) | 47/100 (47) | 87/175 (50) |  |
  Workplace | 10/275 (4) | 3/100 (3) | 7/175 (4) |  |
  Sport | 6/275 (2) | 5/100 (5) | 1/175 (1) |  |
  Street | 65/275 (24) | 19/100 (19) | 46/175 (26) |  |
  Public building | 56/275 (20) | 24/100 (24) | 32/175 (18) |  |
  Nursing home | 4/275 (1) | 2/100 (2) | 2/175 (1) |  |
  Witnessed arrest | 207/275 (75) | 80/100 (80) | 127/175 (73) | 0.170 |
  Bystander CPR | 161/275 (59) | 58/100 (58) | 103/175 (59) | 0.890 |
  CPR time ≥ 20 min | 135/242 (56) | 34/86 (40) | 101/156 (65) | < 0.001 |
  Shockable rhythm | 82/264 (31) | 45/95 (47) | 37/169 (22) | < 0.001 |
  Adrenaline dose ≥ 4 mg | 61/225 (27) | 11/71 (16) | 50/154 (33) | 0.008 |
Post-resuscitation | ||||
 Shock | 186/275 (68) | 44/100 (44) | 142/175 (81) | < 0.001 |
 Coronary angiography | 64/275 (23) | 34/100 (34) | 30/175 (17) | 0.001 |
 Target temperature = 33 °C | 210/275 (76) | 82/100 (82) | 128/175 (73) | 0.096 |
 TTM duration = 24 h | 224/275 (82) | 84/100 (84) | 140/175 (80) | 0.412 |
Outcomes | ||||
 Survival discharge | 142/275 (52) | 80/100 (80) | 62/175 (35) | < 0.001 |
 MRS score 0 to 3 at discharge | 72/275 (26) | 47/100 (47) | 25/175 (14) | < 0.001 |