Research Article

Circulating ADAMTS13 Levels Are Associated with an Increased Occurrence of Obstructive Sleep Apnea

Table 1

Comparison of demographic and sleep data between OSA patients and controls.

VariablesControls ()OSA () value

Anthropometric characteristics
Age (years)0.798
Male, (%)49 (62.8%)119 (82.1%)0.002
BMI (kg/m2)<0.001
Current smoker, (%)26 (33.3%)57 (39.3%)0.318
Diabetes mellitus, (%)10 (12.8%)21 (14.5%)0.476
Hypertension, (%)24 (30.7%)83 (57.2%)<0.001
Hypercholesterolemia, (%)8 (10.3%)24 (16.6%)0.304
CAD, (%)13 (16.7%)69 (47.6%)<0.001
SBP (mmHg)120.0 (112.5-134.0)124.5 (117.0-135.3)0.027
DBP (mmHg)70.0 (63.2-83.5)79.0 (71.0-88.0)0.011
Sleep data
Neck circumference (cm)<0.001
AHI (events/h)2.7 (1.6-3.9)29.1 (16.7-59.4)<0.001
ESS0 (0-7)9 (5-13)<0.001
MSaO2 (%)96.0 (95.0-97.0)95.0 (93.0-95.2)<0.001
Lowest SaO2 (%)92.0 (91.0-93.3)81.0 (74.0-87.8)<0.001
CT90% (%)0 (0-0.15)2.8 (0.0-17.6)<0.001
Arousal index (events/h)4.1 (0.0-9.6)12.6 (6.7-40.0)<0.001

Data are presented as or (%), , or median (interquartile range, IQR), unless otherwise stated. OSA: obstructive sleep apnea; BMI: body mass index; CAD: coronary artery disease; SBP: systolic blood pressure; DBP: diastolic blood pressure; AHI: apnea-hypopnea index; ESS: Epworth Sleepiness Scale; MSaO2: mean oxygen saturation; lowest SaO2: lowest oxygen saturation; CT90: percentage of cumulative time with oxygen saturation below 90% during sleep time.