Table 3.

Comparison of categorized data from manually edited AHI derived from PSG, the in-laboratory PM, and HSAT in the kappa coefficient of agreement.

	HSAT vs PSG		In-Laboratory PM vs PSG		HSAT vs In-Laboratory PM
Classification	Percentage Agreement	Kappa	Percentage Agreement	Kappa	Percentage Agreement	Kappa
AHI 4%*
Summary of all 4 AHI categories†	64.9	0.540	72.0	0.624	66.7	.563
≥ 5 events/h	84.4	0.582	89.3	0.718	89.3	.696
≥ 10 events/h	87.0	0.725	92.0	0.833	88.0	.738
≥ 15 events/h	88.3	0.764	94.7	0.892	90.7	.810
≥ 30 events/h	87.0	0.718	92.0	0.830	88.0	.728

*Scoring of hypopneas required ≥ 4% oxygen desaturation according to HSAT and the in-laboratory PM and ≥ 4% oxygen desaturation and/or an arousal according to PSG. †Patients classified into 4 AHI categories: AHI < 5 events/h, 5 ≤ AHI < 15 events/h, 15 ≤ AHI < 30 events/h, and ≥ 30 events/h. AHI = apnea-hypopnea index, HSAT = home sleep apnea test, PM = portable monitor, PSG = polysomnography.