Skip to main content

Table 4 Comparisons of baseline parameters of patients free of any cardiovascular co-morbidity (excluding smoking and alcohol consumption) who completed serial carotid IMT measurements between CPAP and CT group

From: A prospective cohort study of the long-term effects of CPAP on carotid artery intima-media thickness in Obstructive sleep apnea syndrome

  CPAP (n = 12) CT (n = 12) P value
Male/Female 11/1 9/3 0.590
Age (yrs) 44.3 (2.1) 48.5 (1.7) 0.135
Body mass index (kg/m²) 27.4 (1.1) 25.9 (1.1) 0.357
Neck circumference (cm) 40.0 (1.1) 37.6 (1.0) 0.127
Waist circumference (cm) 96.3 (3.2) 91.9 (2.9) 0.320
Hip circumference (cm) 101.7 (2.2) 97.5 (2.1) 0.179
Systolic blood pressure (mmHg) 139.9 (3.6) 129.7 (6.5) 0.164
Diastolic blood pressure (mmHg) 81.7 (2.7) 75.7 (3.2) 0.160
Cholesterol (mmol/l) 5.8 (0.5) 5.4 (0.4) 0.535
HDL Cholesterol (mmol/l) 1.5 (0.3) 1.2 (0.1) 0.331
LDL Cholesterol (mmol/l) 3.7 (0.4) 3.4 (0.3) 0.548
Triglycerides (mmol/l) 1.3 (0.3) 1.8 (0.3) 0.338
Fasting plasma glucose (mmol/l) 5.2 (0.3) 5.1 (0.1) 0.676
ESS (0-24) 12.7 (1.0) 11.5 (1.3) 0.477
Smoking status    
   Non smoker 10 8 0.640
   Smoker 2 4  
Alcoholic consumption    
   Non drinker 7 5 0.684
   Drinker 5 7  
AHI (events per hr) 36.3 (6.5) 35.5 (6.6) 0.929
REM-AHI (events per hr) 34.4 (6.5) 30.5 (7.6) 0.712
Non-REM-AHI (events per hr) 36.4 (6.8) 35.7 (6.7) 0.942
Minimum SaO2 (%) 77.0 (3.4) 80.0 (2.9) 0.509
Mean SaO2 (%) 94.2 (0.7) 93.9 (0.9) 0.827
Arousal index (per hr of sleep) 29.1 (4.8) 26.8 (5.1) 0.746
Percentage of sleep time with SaO2<90% (%) 10.3 (4.7) 7.6 (3.2) 0.645
Snoring/TST (%) 16.2 (7.7) 7.0 (3.2) 0.510
Sleep efficiency (%) 81.9 (3.0) 81.6 (3.7) 0.943
Mean carotid IMT (micron) 721.7 (40) 660.0 (20) 0.153