Table 4.

Sensitivity, Specificity, and Positive (PPV) and Negative (NPV) Predictive Value for Different Cut-Offs of AHI from the STD Home and STD+PSG lab vs. AHI from PSG lab and PSG+STD

	PSG lab				PSG+STD lab
	Sensitivity	Specificity	PPV	NPV	Sensitivity	Specificity	PPV	NPV
AHI ≥ 5
STD Home	93	59	85	76	95	62	87	81
STD+PSG lab	92	48	82	71	98	62	87	93
AHI ≥ 15
STD Home	85	80	80	84	86	78	78	86
STD+PSG lab	94	71	76	93	97	74	78	96
AHI ≥ 30
STD Home	77	93	81	91	74	96	91	87
STD+PSG lab	86	79	63	93	96	92	87	98

PSG = polysomnography; STD = Stardust portable monitor; AHI = apnea-hypopnea index.