Table 2. Reasons for discontinuing PAP usage according to the period of use

Reasons	Period of use (month)
	<13 (n=29)	≥13 (n=4)
Insufficient usage	8	0
Discomfort or side effects of PAP	7	0
Other disease	5	3
Personal reasons	5	0
Improvement of symptoms	4	1

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