Study of Exhaled Nitric Oxide in Subjects with Suspected Obstructive Sleep Apnea: A Pilot Study in Vietnam

Table 4

Statistical parameters for the best cut-off point of CANO (4.1 ppb).

	Estimated value	95% CI
		Lower bound	Upper bound
Sensitivity	0.731	0.597	0.832
Specificity	0.933	0.787	0.981
PPV	0.950	0.835	0.986
NPV	0.667	0.516	0.790
LR+	10.962	2.844	42.243
LR−	0.288	0.182	0.456
Accuracy	0.805	0.706	0.876

PPV: positive predictive value; NPV: negative predictive value; LR: likelihood ratio; CI: confidence interval.