. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: Sleep Breath. 2014 Mar 5;18(4):875–883. doi: 10.1007/s11325-014-0959-z

Table 4.

I-NAP Cut-Point ≥ −4.8 Predictive Utility (n=97)

		CPAP Adherence < 4hrs/night
		Yes	No
I-NAP4 Screening Index Cut- Point ≥ −4.8^†	Yes	33 True +	22 False +
I-NAP4 Screening Index Cut- Point ≥ −4.8^†	No	5 False −	37 True−

^†

Sensitivity = 87%; Specificity = 63%; PPV = 60%; NPV = 88%