Table 4.

—Performance of the ESS for SDB

ESS Score	Sensitivity, %	Specificity, %	PPV, %	NPV, %
5	82.1 (74.4-87.9)	14.3 (5.7-31.5)	80.8 (73.0-86.7)	15.4 (6.2-33.5)
6	73.2 (64.7-80.2)	21.4 (10.2-39.5)	80.4 (72.0-86.7)	15.4 (7.2-29.7)
7	65.0 (56.3-72.9)	32.1 (17.9-50.7)	80.8 (72.0-87.4)	17.3 (9.4-29.7)
8	54.5 (45.7-63.0)	42.9 (26.5-60.9)	80.7 (71.0-87.8)	17.6 (10.4-28.4)
9	46.3 (37.8-55.1)	46.4 (29.5-64.2)	79.2 (68.4-86.9)	16.5 (9.9-26.1)
10	39.0 (30.9-47.9)	46.4 (29.5-64.2)	76.2 (64.4-85.0)	14.8 (8.8-23.7)
11	32.5 (24.9-41.2)	53.6 (35.8-70.5)	75.5 (62.4-85.1)	15.3 (9.5-23.7)
12	29.3 (22.0-37.8)	67.9 (49.3-82.1)	80.0 (66.2-89.1)	17.9 (11.8-26.3)

Data are presented as median (95% CI). SDB was defined as an AHI ≥ 5 events/h. NPV = negative predictive value; PPV = positive predictive value; SDP = sleep-disordered breathing. See Table 2 and 3 legends for expansion of other abbreviations.