Table 3. Reasons for low PAP usage in the low compliance group according to the period of use

Reasons	Period of use (month)
	<13 (n=6)	≥13 (n=13)
Insufficient usage	0	3
Discomfort or side effects of PAP	4	4
Other disease	1	4
Personal reasons	1	2
Improvement of symptoms	0	0

Data are expressed as the patients’ number.
PAP: positive airway pressure.