Table 3.

Polygraphy results.

Patient numbetr	AHI (hour−1)	SpO2 <90% (% time)	PtCO2 min (mmHg)	PtCO2 max (mmHg)	PtCO2 >45 mmHg (% time)	Unassisted cycles (% of cycles)	Assisted cycles (% of cycles)	Controlled cycles (% of cycles)	Double triggering (% of cycles)	Auto Triggering (% of cycles)	Ineffective efforts (% of cycles)
1	0.0	2	29	36	0	20	80	0	0.2	0.0	10.8
2	1.6	0	31	44	0	1	0	99	1.5	0.2	104.9
3	0.2	0	35	51	30	9	0	91	0.1	2.0	3.6
4	0.0	0	25	41	0	72	9	19	6.2	0.6	0.0
5	4.2	0	31	46	<1	58	42	0	0	0.0	0.7
6	0.2	0	36	44	0	51	49	0	7.7	1.3	17.9
7	6.6	<1	31	44	0	56	24	29	0.0	0.0	1.0
8	5.1	<1	28	41	0	47	14	39	0.0	0.0	0.0

AHI: Apnea–Hypopnea Index; SpO₂: arterial oxygen saturation; PtCO₂: transcutaneous carbon dioxide pressure.