Table 2. Results for Sensitivity, Specificity, PPV, NPV, and Cohens Kappa (κ) for the WURS-brief.

	CAADID	DIVA	PA (ICD-10)	DIVA orα CAADID	DIVA or CAADID andβ psychiatric
Sensitivity	1000.0	82.6	88.5	89.7	88.9
Specificity	.0	14.3	12.5	13.3	11.1
PPV	90.9	67.6	88.5	72.9	66.7
NPV	-	33.3	12.5	33.3	33.3
κ	.00	.006	.010	.038	.00

Note. All values in the table represent percentages except κ. PPV=positive predictive value; NPV=negative predictive value; CAADID=Conners’ Adult ADHD Diagnostic Interview for DSM-IV, dichotomised as ADHD if six or more symptom criteria are present in both adulthood and childhood, and in either or both of the domains Attention Deficit and Hyperactivity-Impulsivity, and as ADHD-negative if fewer than six symptom criteria are present; DIVA=Diagnostic Interview for ADHD in Adults, dichotomised as ADHD if both five or more symptom criteria in adulthood and six or more in childhood are present, and in either or both of the domains Inattention and Hyperactivity-Impulsivity, and as non-ADHD if fewer than six or five symptom criteria are present in the respective categories; Psychiatric=psychiatric diagnostic assessment, dichotomised as ADHD if ICD-10 code of F90, F90.0, F90.1, F90.8 or F90.9 are given post full diagnostic interview with clinician, and ADHD negative if another diagnostic code is given.

α ‘or’ indicates that the outcome on either assessment determined the diagnosis;

β ‘and’ indicates that the outcome of the combined means was required to determine the diagnosis.