Table 1 Clinical and demographic characteristics in control and OSAS groups.

From: Evaluation of right ventricular performance and impact of continuous positive airway pressure therapy in patients with obstructive sleep apnea living at high altitude

 

Control group (n = 31)

OSAS group (n = 71)

P value

Age (years)

47.2 ± 8.6

48.0 ± 7.8

0.67

Male gender (%)

19 (61.3%)

52 (73.2%)

0.87

Body mass index (kg/m2)

24.9 ± 2.3

26.0 ± 2.4

0.03

Body surface area (m2)

1.8 ± 0.1

1.8 ± 0.2

0.09

Smoker

11 (35%)

28 (39%)

0.86

Hypertension

8 (26%)

21 (30%)

0.98

Diabetes mellitus

4 (13%)

10 (14%)

0.89

Heart rate (beat/min)

69 ± 7

71 ± 6

0.11

Cholesterol (mg/dl)

159.8 ± 9.7

162.2 ± 6.6

0.19

LDL cholesterol (mg/dl)

79.9 ± 6.7

80.6 ± 6.1

0.65

HDL cholesterol (mg/dl)

39.6 ± 3.5

38.9 ± 2.9

0.34

Triglyceride (mg/dl)

116.8 ± 9.1

120.6 ± 9.0

0.07

AHI (events/hour)

2.6 ± 1.0

44.3 ± 17.2

 < 0.001

Awake SaO2 (%)

96.4 ± 2.2

96.4 ± 2.1

0.99

Minimal SaO2 (%)

85.8 ± 3.8

75.3 ± 8.2

 < 0.001

Time SaO2 < 90% (mins)

0.3 ± 0.3

22.7 ± 12.5

 < 0.001

CRP (mg/L)

2.0 ± 0.5

5.4 ± 1.1

 < 0.001

NT-proBNP (pg/ml)

794.2 ± 165.8

815.1 ± 115.3

0.51

cTnT (ng/ml)

 < 0.01

 < 0.01

1.00

  1. LDL low-density lipoprotein, HDL high-density lipoprotein, AHI apnea–hypopnea index, SaO2 saturation of arterial oxygen, CRP C-reactive protein, NT-proBNP N-terminal pro-B-type natriuretic peptide, cTnT cardiac troponin T.
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