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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