Table 1.

Sensitivity and specificity for SDQ hyperactivity/ADHD cut-points compared against ADHD diagnosis.

Cut-point	Sensitivity (95% CI)	Specificity (95% CI)
≥ 1	99.2% (95.5–100.0)	11.9% (10.9–12.9)
≥ 2	99.2% (95.5–100.0)	26.7% (25.3–28.1)
≥ 3	98.4% (94.2–99.8)	43.5% (41.9–45.0)
≥ 4	94.2% (88.4–97.6)	61.9% (60.3–63.4)
≥ 5	89.3% (82.3–94.2)	76.7% (75.3–78.0)
≥ 6	76.0% (67.4–83.3)	88.7% (87.7–89.7)
≥ 7	51.2% (42.0–60.4)	94.6% (93.9–95.3)
≥ 8	37.2% (28.6–46.4)	98.2% (97.7–98.6)
≥ 9	20.7% (13.8–29.0)	99.6% (99.4–99.8)
≥ 10	5.0% (1.84 –10.5)	100.0% (99.8–100.0)