Related Variables

	other	Sleep Diary: list of other medications taken day of study	Lab Visit/Physiology
	ahi_a0h4a	Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep	Polysomnography/Respiratory Events/Indexes
	ahi_c0h4a	Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep	Polysomnography/Respiratory Events/Indexes
	ahi_o0h4a	Obstructive Apnea-Hypopnea Index (AHI) >= 4% - number of [obstructive apneas] and [hypopneas 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