Nasal continuous positive airway pressure improves myocardial perfusion reserve and endothelial-dependent vasodilation in patients with obstructive sleep apnea

Table 1 Demographics and Clinical Characteristics

	Sub therapeutic nCPAP (n = 10)	Therapeutic nCPAP (n = 10)	All Patients (n = 20)	p value
Age, years	53.9 ± 10.8	52.9 ± 11.6	53.4 ± 11.2	0.85
Male	10/10	8/10	18/20	0.47
Caucasian	6/10	6/10	12/20	1.00
BMI, kg/m²	29.6 ± 5.6	30.1 ± 4.7	29.8 ± 5.2	0.85
Smoking	0/10	1/10	1/20	1.00
HTN	10/10	10/10	20/20	1.00
DM	1/10	0/10	1/20	1.00
Dyslipidemia	5/10	4/10	9/20	1.00
# Awakenings During Night	1.35 ± 0.98	2.1 ± 0.6	1.7 ± 0.9	0.07
# Hours of Sleep on Weekday Nights	7.15 ± 1.32	7.53 ± 0.81	7.34 ± 1.11	0.48
# Hours of Sleep on Weekend Nights	6.93 ± 2.43	7.7 ± 1.12	7.34 ± 1.11	0.40
# Naps ≥ 5 minutes Per Week*	1.7 ± 2.25	1.1 ± 1.46	1..4 ± 1.92	0.51
Feels Unrested During Day*	1.8 ± 1.2	1.2 ± 0.87	1.15 ± 1.2	0.25
Feel Excessively Sleepy During Day*	1.8 ± 0.87	1.3 ± 0.64	1.56 ± 0.80	0.18
Do Not Get Enough Sleep*	2.4 ± 0.8	2.0 ± 0.89	2.2 ± 0.87	0.33
Feel Excessively Fatigued During Day*	2.3 ± 1.27	1.6 ± 0.92	1.95 ± 1.16	0.20
# Caffeinated Beverages Per Week	1.9 ± 1.5	1.05 ± 0.57	1.5 ± 1.2	0.13
# Alcoholic Beverages Per Week	4.3 ± 5.2	2.1 ± 5.01	3.2 ± 5.2	0.37

p values reflect differences in scores between Post nCPAP minus Baseline for the Active vs. Sham Groups
* 0 = never; 1 = rare (1/month or less); 2 = sometimes (2-4/month); 3 = often (5 - 15/month); 4 = almost always (16-30/month)
BMI: body mass index, HTN: hypertension, DM: diabetes

ISSN: 1532-429X