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Table 1 Characteristics of delirium patients and non-delirium patients

From: Association between glucose variability and postoperative delirium in acute aortic dissection patients: an observational study

Variables Delirium
(n = 103)
Non-delirium (n = 154) P
Demographic information
 Age, mean (SD), years 53.3 ± 10.5 51.1 ± 12.8 0.145
 BMI, median IQR, kg/m2 25.4 (23.5, 27.7) 24.0 (22.2, 26.7) 0.014
 Male, n (%) 81 (78.6) 113 (73.4) 0.336
 Smoker, n (%) 41 (39.8) 60 (39.0) 0.892
 Drinker, n (%) 41 (39.8) 56 (36.4) 0.577
 High school and above, n (%) 20 (19.4) 36 (23.4) 0.374
 Married, n (%) 100 (97.1) 152 (98.7) 0.648
 Hypertension, n (%) 83 (80.6) 112 (72.7) 0.149
 History of cardiac surgery, n (%) 7 (6.8) 2 (1.3) 0.019
Preoperative data
 First admission blood glucose, IQR, mmol/L 7.6 (6.6, 9.2) 6.9 (5.9, 7.8) < 0.001
 WBC, mean (SD), [×109/L] 12.9 ± 4.1 11.8 ± 3.9 0.033
 Neutrophil, median (IQR), [×109/L] 10.0 (7.0, 12.6) 8.5 (4.6, 11.5) 0.061
 Lymphocyte, median (IQR), [×109/L] 6.5 (4.1, 10.0) 7.1 (4.1, 11.3) 0.330
 Monocyte, median (IQR), [×109/L] 5.0 (3.5, 8.0) 5.4 (2.6, 7.6) 0.344
 RBC, median (IQR), [×109/L] 4.3 (3.9, 4.8) 4.3 (4.0, 4.7) 0.922
 Platelet, median (IQR), [×109/L] 196.0 (149.8, 235.0) 193.0 (149.8, 217.0) 0.138
 Hb, median (IQR), g/L 134.0 (122.0, 146.0) 131.0 (118.0, 142.0) 0.175
 Anemia, n (%) 18 (17.5) 21 (13.6) 0.896
 ASA grade, n (%)    0.608
  III level 20 (19.4) 34 (22.1)  
   ≥ IV level 83 (80.6) 120 (77.9)  
 Entry status, n (%)    0.173
  Quiet 50 (48.5) 64 (41.6)  
  nervous 33 (32.0) 67 (43.5)  
  confused 20 (19.4) 23 (14.9)  
Intraoperative data
 Operating time, median (IQR), minutes 299.0 (255.0, 365.0) 290.5 (253.5, 362.5) 0.642
 Aortic cross-clamp time, median (IQR), minutes 65.0 (46.0, 95.0) 57.0 (43.0, 95.0) 0.326
 CPB, median (IQR), minutes 155.0 (130.0, 188.0) 149.0 (125.0, 186.5) 0.600
 Blood loss, median (IQR), ml 800.0 (600.0, 1000.0) 800.0 (600.0, 1000.0) 0.367
Postoperative data
 APACHE-II scores, n (%)    < 0.001
  < 15 38 (36.9) 111 (72.1)  
  15–20 46 (44.7) 32 (20.8)  
  > 20 19 (18.4) 11 (7.1)  
 Hypoxemia, n (%) 52 (50.5) 25 (16.2) < 0.001
  MBG, mmol 13.1 (11.6, 15.0) 10.7 (9.6, 11.9) 0.001
  SDBG, mmol 2.9 (2.2, 3.9) 1.7 (1.3, 2.5) < 0.001
ICU stay, median (IQR), day 7.0 (5.0, 10.0) 5.0 (4.0, 7.0) < 0.001
Mechanical ventilation duration, median (IQR), hours 61.0 (37.0, 139.0) 42.5 (27.8, 82.3) < 0.001
Hospitalization days, median (IQR), day 21.0 (15.0, 26.0) 18.0 (14.0, 25.0) 0.357
  1. Values are n (%) unless otherwise indicated
  2. SD Standard Deviation, BMI Body Mass Index, IQR Interquartile, WBC White Blood Cell, RBC Red Blood Cell, Hb Hemoglobin, ASA American Society of Anesthesiologists, CPB Cardiopulmonary Bypass, APACHE Acute Physiology and Chronic Health Evaluation Score, MBG Mean of Blood Glucose, SDBG Standard Deviation of Blood Glucose, ICU Intensive Care Unit