Table 2 Basic characteristics of the CAD patients with SA according to SA severity

Variable

Mild

AHI: 5–14.9

n = 192

Moderate

AHI: 15–29.9

n = 59

Severe

AHI: ≥30

n = 49

p for trend^a

1

2

3

Age, years

59.1 ± 8.7

59.7 ± 9.3

60.9 ± 7.3

0.401

Age over 60 years, n (%)

88 (47)

32 (54)

33 (67)

0.037

Male, n (%)

148 (79.1)

52 (88.1)

44 (89.8)

0.087

BMI, kg/m²

30.5 ± 4.9

30.7 ± 4.5

33.2 ± 5.5^b

0.003

Hypertension, n (%)

171 (91.4)

53 (89.8)

45 (91.8)

0.965

Diabetes mellitus, n (%)

38 (20.3)

9 (15.3)

15 (30.6)

0.139

NYHA class, mean

2.05 ± 0.43

2.14 ± 0.47

2.16 ± 0.47

0.203

Myocardial infarction, n (%)

133 (71)

39 (66)

16.9 (71)

0.746

LVEF ≤ 45%, n (%)

53 (28.3)

13 (22.0)

13 (26.5)

0.600

Smoking history, n (%)

19 (10.2)

7 (11.9)

3 (6.1)

0.588