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Table 1 Population and peri-operative intervention characteristics according to treatment group

From: Epoetin administrated after cardiac surgery: effects on renal function and inflammation in a randomized controlled study

Variables * All Control EPO 20’000ui EPO 40’000ui P
  N = 80 N = 40 N = 20 N = 20  
Population characteristics:      
Age in years 66.3 ± 14.5 64.7 ± 14.7 68.9 ± 12.0 66.5 ± 16.5 0.56
Sex      
    Male 56 (70) 27 (67.5) 16 (80) 13 (65) 0.52
    Female 24 (30) 13 (32.5) 4 (20) 7 (35)  
Hypertension 55 (68.8) 26 (65) 17 (85) 12 (60) 0.18
Diabetes 23 (28.8) 14 (35) 5 (25) 4 (20) 0.44
Chronic kidney disease 11 (13.8) 6 (15) 2 (10) 3 (15) 0.85
Ischemic heart disease 33 (41.3) 17 (42.5) 9 (45) 7 (35) 0.79
Creatinine baseline μmol/l 86.4 ± 25.5 84.7 ± 26.4 92.5 ± 26.1 86.7 ± 24.0 0.79
Intraoperative variables:      
Cardiopulmonary bypass min 100 (80–136) 100 (77–120) 96 (77.5-144) 110 (83–143) 0.58
Transfusions administred 28 (40) 17 (50) 6 (33.3) 5 (27.8) 0.24
Inotropic agent use 16 (20.3) 6 (15) 4 (21.1) 6 (30) 0.39
Vasopressor agent use 18 (22.8) 9 (22.5) 4 (21.1) 5 (25) 0.96
Urgency of operation 19 (23.8) 7 (17.5) 5(25) 7 (35) 0.32
  1. *Age and creatinine are expressed as mean ± standard deviation and length of cardiopulmonary bypass as median (25th-75thpercentiles).
  2. Categorical variables are written as numbers of participants and percentages (%).
  3. p compares the 3 treatment groups.
  4. information missing for 10 patients, 6 in the control group:% calculated for a total of 70 patients.
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