The Effects of Continuous Positive Airway Pressure on Premature Ventricular Contractions and Ventricular Wall Stress in Patients with Heart Failure and Sleep Apnea

Table 2

Drug usage characteristics of the groups.

	Groups		value
	Study group (n = 40)	Control group (n = 40)
β blocker
Not using	3 (7.5)	3 (7.5)	1.0
Using	37 (92.5)	37 (92.5)
Renin-angiotensin system blocker
Not using	2 (5)	2 (5)	1.0
Using	38 (95)	38 (95)
Aldosterone antagonist
Not using	9 (22.5)	9 (22.5)	1.0
Using	31 (77.5)	31 (77.5)
Class III antiarrhythmic agents
Not using	25 (62.5)	30 (75)	0.23
Using	15 (37.5)	10 (25)
Diuretics
Not using	5 (12.5)	3 (7.5)	0.71
Using	35 (87.5)	37 (92.5)