Table 6. The results of ESS, Berlin, STOP and STOP-Bang questionnaires for the prediction of OSA .

		ESS	Berlin	STOP	STOP-Bang
AHI≥5	Sensitivity	40.7	79.8	74.5	66.3
	Specificity	85.7	71.4	57.1	28.6
	PPV	99	99	98.4	98.8
	NPV	4	9.3	6.1	5.7
	LR+	2.8(0.46-17.56)	2.79(0.86-9.01)	1.74(0.74-4.09)	0.93(0.58-1.5)
	LR-	0.69(0.5-0.95)	0.28(0.17-0.48)	0.45(0.23-0.88)	1.18(0.36-3.85)
AHI≥15	Sensitivity	17.8	72.8	46.5	74.8
	Specificity	85.4	75	89.6	75
	PPV	83.7	92.5	94.9	92.6
	NPV	19.8	32.8	28.5	41.4
	LR+	1.22(0.58-2.57)	2.91(1.77-4.79)	4.47(1.92-10.39)	2.92(1.82-4.92)
	LR-	0.96(0.84-1.1)	0.36(0.27-0.48)	0.6(0.5-0.7)	0.34(0.25-0.45)
AHI≥30	Sensitivity	15.7	63.5	83	80.5
	Specificity	91.2	76.9	42.9	61.5
	PPV	75.8	82.8	85.9	78.5
	NPV	38.2	54.7	51	64.4
	LR+	1.78(0.84-3.79)	2.75(1.86-4.07)	1.45(0.85-9.58)	2.09(1.60-2.74)
	LR-	0.92(0.84-1.01)	0.47(0.38-0.6)	0.4(0.88-1)	0.32(0.22-0.45)

AHI; Apnea/hypopnea index, ES; Epworth Sleepiness Score; LR+; likelihood ratio for a positive test; LR_; likelihood ratio for a negative test; NPV; negative predictive value; PPV; positive predictive value.