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Table 1 Demographic variables of delirious and non-delirious patients

From: Case–control study on the interplay between immunoparalysis and delirium after cardiac surgery

  Non-delirious patients (n = 52) Delirious patients (n = 14) p-value
Age (years), mean (SD) 65 (8.2) 68 (6.9) 0.196a
Sex, male, n (%) 37 (71) 9 (64) 0.745b
BMI, kg/m2, mean (SD) 28 (4.7) 28 (4.3) 0.636a
Type of surgery    0.536b
 CABG, n (%) 35 (67) 8 (57)  
 Aortic valve, n (%) 17 (33) 6 (43)  
Duration of surgery, minutes, mean (SD) 203 (53) 196 (65) 0.700a
Perfusion time, minutes, median [IQR] 90 [72–107] 82 [69–117] 0.790c
AOX time, median [IQR] 63 [52–78] 62 [48–75] 0.505c
APACHE-II score, median [IQR] 17 [14–29] 19 [16–42] 0.243c
EuroSCORE-II, mean (SD) 3.4 (2.3) 4.3 (2.0) 0.209a
Preoperative plasma creatinine level, μmol/L, median [IQR] 84 [75–96] 85 [70–103] 0.947c
  1. AOX, aortic cross-clamping; APACHE-II, Acute Physiology and Chronic Health Evaluation II score; BMI, body mass index; CABG, coronary artery bypass grafting surgery; EuroSCORE-II, European System for Cardiac Operative Risk Evaluation-II; IQR, interquartile range; SD, standard deviation
  2. aUnpaired t-test; bFisher’s exact test; cMann–Whitney U test