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Table 2 Potential donor characteristics (excluding contraindications and family refusals) and their relationship with cardiac arrest

From: Positive impact of a clinical goal-directed protocol on reducing cardiac arrests during potential brain-dead donor maintenance

Characteristic Total, n = 465 (100 %) Cardiac arrests, n = 141 (30.3 %) p value OR (95 % CI)
Gender, n (%)
 Male 279 85 (30.5) 0.93  
 Female 186 56 (30.1)   
Age group, n (%)
  < 20 years 38 10 (26.3) 0.57  
 21–40 years 105 27 (25.7) 0.24  
 41–60 years 207 58 (28.0) 0.33  
  > 60 years 115 46 (40.0) 0.009 1.79 (1.15; 2.78)
Cause of BD, n (%)
 Traumatic brain injury 165 52 (30.9) 0.84  
 Hemorrhagic stroke 161 50 (31.1) 0.80  
 Ischemic stroke 56 14 (25.0) 0.35  
 Subarachnoid hemorrhage 34 10 (29.4) 0.90  
 Hypoxic encephalopathy 38 10 (26.3) 0.57  
 Other 11 5 (45.5) 0.27  
Organ dysfunction, n (%)
 Cardiovascular 297 85 (28.6) 0.46  
 Pulmonary 147 44 (29.9) 0.96  
 Renal 120 43 (35.8) 0.13  
 Hepatic 39 11 (28.2) 0.79  
 Hematologic 118 34 (28.8) 0.74  
Number of organ dysfunctions at the start of BD investigation, n (%)
 0–1 230 55 (13.9)   1 (Referencea)
 2 136 43 (31.6) 0.03 1.66 (1.03; 2.68)
 3 70 27 (38.0) 0.004 2.26 (1.27; 4.01)
 ≥4 29 16 (55.2) 0.002 4.43 (1.99; 9.82)
Infection, n (%)
 Yes 322 96 (29.8) 0.72  
 No 143 45 (31.5)   
Clinical management site, n (%)
 ICU 369 103 (27.9) 0.02 0.59 (0.37; 0.94)
 Outside the ICU 96 38 (39.6)   
  1. aWe used potential donors with zero and one dysfunction as a reference to test the effect of the number of organ dysfunctions at the start of the BD investigation of cardiac arrests. For the other variables with more than two categories, each category was compared with the sum of the others
  2. BD brain death, OR odds ratio, CI confidence interval