Table 1.

Participants' characteristics and the devices used in each group.

	PZ0	PZ trial	PZ definitive
Number of PZ	40	16	28
Male	33	13	22
Female	7	3	6
Mean age	55.6 ± 12.73	53.88 ± 12.88	56.79 ± 12.33
AHI T0	26.51 ± 14.79	29.9 ± 19.97	AHI 23.90 ± 9.19
Number of PZ/OSAS severity
Mild (5 ≥ AHI < 15)	9	4	5
Moderate (15 ≥ AHI < 30)	17	7	14
Severe (AHI ≥ 30)	14	5	9