Table 1 Sociodemographic data of all studied patients

Age ± SD, years

73 ± 9.5

59 ± 19

54.2 ± 12.6

59.1 ± 13.9

14.56*

< 0.001^a

Male

8 (63.3%)

132 (65.3%)

17 (51.5%)

157 (62.8%)

2.93

0.23

Female

7 (46.7%)

70 (34.7%)

16 (50%)

93 (37.2%)

Non-smoker

8 (53.3%)

111 (55.0%)

24 (72.7%)

143 (57.2%)

3.75

0.15

Smoker

7 (46.7%)

91 (45.0%)

9 (27.3%)

107 (42.8%)

Antiplatelet therapy

3 (20.0%)

23 (11.4%)

3 (9.1%)

29 (11.6%)

1.24

0.53

Respiratory

4 (26.7%)

89 (44.1%)

15 (45.5%)

108 (43.2%)

1.8

0.4

Cardiac

8 (53.3%)

33 (16.3%)

4 (12.1%)

45 (18.0%)

13.1

0.001^a

Diabetes mellitus

2 (13.3%)

34 (16.8%)

5 (15.2%)

43 (17.2%)

0.16

0.91

Hepatic

4 (26.7%)

13 (5.9%)

2 (6.1%)

18 (7.2%)

6.2

0.04^a

Renal

2 (13.3%)

9 (4.5%)

1 (3.0%)

12 (4.8%)

2.66

0.26