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Table 1 Preoperative variables and overall mortality

From: The effect of cognitive dysfunction on mid- and long-term mortality after vascular surgery

  All patients (n = 164, 100%)  
Survivors (n = 122, 74.39%) Nonsurvivors (n = 42, 25.61%)
Preoperative Variable   n (%) Mean/Median Standard Deviation/ IQR n (%) Mean/Median Standard Deviation/IQR p valueb
Sex male 77 (63.11)    28 (66.67)    0.679
Age   66.87 9.98   67.60 7.96 0.874
BMI   27.52 4.72   26.03 3.82 0.092
ASA Score 1 1 (0.82)    0 (0.00)    0.783c
2 46 (37.70)    10 (24.39)   
3 72 (59.02)    29 (70.73)   
4 3 (2.46)    2 (4.88)   
Vascular POSSUMa   16.00 (14.00–18.00)   17.00 (15.00–22.00) 0.025
Medical variables
 Ischaemic Heart Disease 43 (35.25)    15 (35.71)    0.956
 Myocardial infarction 23 (18.85)    5 (11.90)    0.302
 Diabetes mellitus 35 (28.69)    19 (45.24)    0.049
 Obesity 31 (25.41)    5 (11.90)    0.068
 Hypertension 108 (88.52)    34 (80.95)    0.214
 CABG 10 (8.20)    4 (9.52)    0.791
 Previous vascular surgery 53 (43.44)    28 (66.67)    0.009
 Stroke or TIA 20 (16.39)    11 (26.19)    0.162
 Thyroid disorder 7 (5.74)    2 (4.76)    0.811
 Haemoglobin (g/L)   140.33 14.63   129.80 19.70 0.020
 Platelet (G/L)   235.37 81.04   251.90 111.90 0.632
 Glomerular filtration rate (ml/min)   84.39 13.56   86.20 10.24 0.537
 C reactive protein (mg/L)   3.00 (1.16–6.18)   12.35 (4.46–33.50) < 0.001
Psychological variables
 Cognitive dysfunction assessed using the MMSE (age and education adjusted) 11 (9.02)    10 (23.81)    0.013
 Depression assessed using the BDI (≥10points) 41 (35.96)    15 (36.59)    0.943
 Anxiety assessed using the STAI-T (≥45 points) 47 (38.52)    18 (42.86)    0.621
Comprehensive Frailty Score
Comprehensive Frailty Index
  4.00 (3.00–6.00)   5.00 (3.30–6.70) 0.039
 1st quartile   47 (38.52)    10 (23.81)    0.201
 2nd quartile   20 (16.39)    6 (14.29)   
 3rd quartile   35 (28.69)    14 (33.33)   
 4th quartile   20 (16.38)    12 (28.57)   
  1. anot normally distributed
  2. bPearson chi square test for categorical variables and Mann-Whitney U test for continuous variables
  3. cKolmogorov-Smirnov Z test