Related Variables

	other	Sleep Diary: list of other medications taken day of study	Lab Visit/Physiology
	cai4pa	Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep	Polysomnography/Respiratory Events/Indexes
	rdi4pa	Overall RDI at 4% oxygen desaturation or arousal	Polysomnography/Respiratory Events/Indexes