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Table 1 Characteristics of the study population of 272 patients undergoing elective isolated coronary artery bypass graft surgery

From: Quality of life 10 years after cardiac surgery in adults: a long-term follow-up study

Variable

Overall (N = 272)

Alive (a) (N = 118)

NR & Died (b) (N = 154)

p-value

(a) vs (b)

Male

213 (78)

100 (85)

113 (73)

0.026

Age

65 ± 10

63 ± 9

66 ± 10

0.016

Living maritally

215 (79)

99 (84)

116 (75)

0.057

Living in an urban area

118 (43)

55 (47)

63 (41)

0.39

Professionally active

48 (17)

23 (20)

25 (16)

0.52

On invalidity

7 (3)

4 (3)

3 (2)

0.47

Socio-economic class

 Upper middle class

20 (7)

9 (8)

11 (7)

0.51

 Middle class

52 (19)

13 (11)

39 (25)

0.011

 Lower middle class

66 (24)

37 (31)

29 (19)

0.73

 Skilled working class

77 (28)

39 (33)

38 (25)

0.69

 Working class

41 (15)

15 (13)

26 (17)

0.81

 Others

16 (6)

5 (4)

11 (7)

0.44

Level of education ≥ high school diploma

49 (18)

25 (21)

24 (16)

0.27

Diabetes mellitus

87 (32)

30 (25)

57 (43)

0.049

Peripheral arterial disease

67 (25)

24 (20)

43 (36)

0.16

Atrial fibrillation

5 (2)

1 (1)

4 (3)

0.14

Depression

15 (6)

5 (4)

10 (8)

0.59

LVEF

 > 50%

184 (68)

80 (68)

104 (88)

0.78

 30–50%

75 (28)

33 (28)

42 (36)

0.93

 < 30%

13 (5)

5 (4)

8 (7)

0.67

CCS class ≥3

50 (18)

18 (15)

32 (27)

0.27

NYHA class ≥3

23 (9)

6 (5)

17 (14)

0.12

Complicated Outcome

38 (14)

10 (9)

28 (24)

0.023

  1. NR, Non-responders (N = 73 patients missing at least one questionnaire at 10 years); Died: N = 81 patients had died at 10 years. Data are presented as mean ± standard deviation or number (percentage)
  2. COPD, chronic obstructive pulmonary disease; LVEF, left ventricular ejection fraction, CCS, Canadian Cardiovascular Society; NYHA, New York Heart Association. Variables highlighted in bold show statistically significant differences