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Table 2 Comparisons between different OSA groups

From: Epidemiological characteristics and gender-specific differences of obstructive sleep apnea in a Chinese hypertensive population: a cross-sectional study

Variables Without OSA Mild Moderate-severe P value
N (%) 286 (29.5) 318 (32.7) 367 (37.8)  
Age (years) 56.5 ± 13.3 59.9 ± 11.4 58.8 ± 11.9 0.002
Male (%) 71.7 73.6 82.6 <0.001
BMI (Kg/m2) 24.6 ± 3.6 24.8 ± 3.4 26.6 ± 4.4 <0.001
SBP (mm Hg) 137.3 ± 20.4 137.7 ± 21.5 137.1 ± 21.5 0.934
DBP (mm Hg) 79.3 ± 13.6 79.3 ± 14.8 79.4 ± 14.0 0.985
AHI 1.7 ± 1.4 9.2 ± 2.7 33.1 ± 15.7 <0.001
IVS (mm) 10.7 ± 1.8 11.2 ± 2.6 11.5 ± 2.1 <0.001
LVPW (mm) 10.2 ± 1.8 10.3 ± 1.7 10.7 ± 1.9 0.001
HbA1c (%) 6.1 ± 1.1 6.2 ± 1.1 6.2 ± 1.2 0.838
Creatinine (μmol/L) 91.6 ± 48.0 92.7 ± 45.3 104.5 ± 79.2 0.012
BUN (mmol/L) 5.5 ± 3.2 5.7 ± 2.9 5.9 ± 2.8 0.290
FPG (mmol/L) 6.2 ± 2.6 6.3 ± 2.5 6.6 ± 3.4 0.097
Triglyceride (mmol/L) 1.9 ± 0.3 1.7 ± 0.1 1.9 ± 0.1 0.665
Total cholesterol (mmol/L) 4.5 ± 1.3 4.5 ± 1.3 4.6 ± 1.2 0.442
LDL-C (mmol/L) 2.7 ± 1.0 2.7 ± 1.0 2.7 ± 1.0 0.938
HDL-C (mmol/L) 1.0 ± 0.3 1.0 ± 0.2 1.0 ± 0.2 0.892
Proteinuria (%) 17.1 18.5 22.0 0.027
Diabetes mellitus (%) 19.6 23.0 25.6 0.038
Dyslipidemia (%) 10.5 14.2 15.0 0.057
Aortic dissection (%) 20.3 20.8 19.1 0.358
Aneurysm (%) 4.5 4.7 6.0 0.221
CHD (%) 37.4 39.9 43.6 0.058
Cerebrovascular disease (%) 6.6 11.0 9.0 0.195
Heart failure (%) 19.2 17.6 25.6 0.019
Atrial fibrillation (%) 8.4 10.1 8.2 0.462
HCM (%) 1.7 3.1 3.5 0.112
Anti-platelet (%) 49.0 53.1 55.3 0.060
Statins (%) 59.1 68.2 65.7 0.057
ACEI (%) 22.0 22.0 22.1 0.514
ARB (%) 49.7 45.3 46.6 0.249
Beta-blocker (%) 59.4 62.9 69.5 0.004
Alpha-blocker (%) 6.6 6.3 6.5 0.514
CCB (%) 55.2 58.5 55.9 0.478
Diuretic (%) 16.1 16.7 20.4 0.076
Warfarin (%) 2.0 2.5 2.6 0.512
  1. Denote: BUN blood uria nitrogen, LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, CHD coronary heart disease, HCM hypertrophy cardiomyopahty, ACEI angiotensin converting enzyme inhibitor, ARB angiotensin receptor blocker, CCB calcium channel blocker