TABLE 3

ASQ-3 Psychometric Values Compared With Bayley-III for Different Age Groups

ValuesAge GroupTotal
(N = 306)
8 Months
(n = 110)18 Months
(n = 100)30 Months
(n = 96)
Sensitivity71 (53–84)79 (52–92)82 (52–95)75 (62–85)
Specificity76 (66–84)84 (75–90)84 (74–90)81 (76–86)
PPV54 (39–68)44 (27–63)39 (22–59)47 (37–58)
NPV87 (77–93)96 (89–99)97 (91–99)94 (90–96)
Positive LR 2.9 (1.9–4.6)4.8 (2.8–8.4)5.0 (2.9–8.6)4.0 (3.0–5.4)
Negative LR 0.4 (0.22–0.67)0.26 (0.09–0.7)0.22 (0.06–0.77)0.31 (0.20–0.49)
  • Data are presented as % (95% CI) or n (95% CI). NPV, negative predictive value; PPV, positive predictive value.