Table 6. The diagnostic accuracy of the SDQ ‘probable’ algorithm.

	DAWBA ICD-10 HKD present N = 221	DSM-IV/V ADHD present N = 222	Clinical diagnosis ADHD present N = 152
Sensitivity % (95%CI)	45.0(35.6, 54.8)	43.2(35.1, 51.6)	42.5(33.5, 51.9)
Specificity % (95%CI)	74.5(65.4, 82.4)	79.7(68.8, 88.2)	84.4(64.2, 94.7)
Positive Predictive Value % (95%CI)	64.1(52.4, 74.7)	81.0(70.6, 89.0)	91.1(80.4, 97.0)
Negative Predictive Value % (95%CI)	57.3(48.8, 65.6)	41.3(33.1, 49.8)	28.1(19.4, 38.2)

Note. CI = confidence interval. DAWBA = Development and Well Being Assessment. HKD = hyperkinetic disorder.