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Table 2 Comparison of cardiovascular risk factors and obstructive sleep apnea related hypoxia parameters of patients according to the apnea-hypopnea index

From: Advanced age and apnea-hypopnea index predict subclinical atherosclerosis in patients with obstructive sleep apnea syndrome

 

Group 1

Group 2

Group 3

Group 4

P

(AHI < 5)

(AHI 5–15)

(AHI 16–29)

(AHI ≥30)

(n = 16)

(n = 14)

(n = 19)

(n = 24)

Age, years

50 ± 10

48 ± 9

47 ± 9

52 ± 10

0.282

Male/Female

9/7

6/8

13/6

15/9

0.498

Diabetes mellitus

4 (25%)

2 (14%)

6 (32%)

9 (38%)

0.473

Hypertension

6 (38%)

5 (36%)

4 (21%)

12 (50%)

0.281

Smoking

6 (38%)

7 (50%)

11 (58%)

14 (58%)

0.568

Body mass index, kg/m2

28.2 ± 4.8

30.9 ± 6.4

28.4 ± 4.8

32.2 ± 4.1

0.035

Hyperlipidemia

6 (38%)

3 (21%)

3 (16%)

9 (38%)

0.332

Apnea-hypopnea index (min-max)

2.4 ± 1.1

8.0 ± 2.0

22.5 ± 4.3

45.3 ± 16.3

<0.001

(1–4)

(6–12)

(16–28)

(30–95)

Basal oxygen saturation,%

94 ± 6

87 ± 10

77 ± 12

71 ± 12

<0.001

Oxygen desaturation index (min-max)

0.7 ± 2.7

2.7 ± 3.2

5.1 ± 3.3

14.6 ± 19.7

<0.001

(0–11)

(0–10)

(0–12)

(2–47)

Coronary calcium score (min-max)

1.4 ± 3.0

1.9 ± 4.9

32.2 ± 97.5

59.5 ± 121.2

0.015

(0–11)

(0–15)

(0–420)

(0–480)

Presence of coronary artery calcification

4 (25%)

2 (14%)

7 (37%)

14 (58%)

0.032