The WHO Adult ADHD self-report Scale used in a clinical sample of patients with overlapping symptoms - psychometric properties of and scoring methods for the Swedish translation

Figures & data

Figure 1. Flow chart of the recruitment process, starting with all patients from one out-patient clinic diagnosed with either ADHD, and/or BPD, and/or BD.

Table 1. Descriptive data of participating psychiatric patients (n = 151) diagnosed with ADHDa, and/or BDb and/or BPDc.

	n (%)
Gender (females)	113 (74.8)
Full time work or studies	104 (68.9)
Some social welfare recipiencyd	37 (25.5)
Only ADHD	20 (13.2)
Only BD	46 (30.5)
Only BPD	18 (11.9)
BD + BPD	24 (15.9)
ADHD + BD	9 (6.0)
ADHD + BPD	9 (6.0)
ADHD + BD + BPD	4 (2.6)
Subthreshold symptoms of ADHD, and/or BD, and/or BPD	21 (13.9)
	Mean (SD)
Age	23.1 (2.1)
ASRS (0–72)	37.0 (13.7)
WURS (0–100)	36.6 (22.2)
SDS (0–30)	15.0 (7.0)

^a Attention deficit hyperactivity disorder.

^b Bipolar disorder.

^c Borderline personality disorder.

^d Includes both social welfare, disability pension and unemployment benefit payments.

Figure 2. Confirmatory factor analysis for ASRSv1.1, with two factors, Inattention (INA) and Impulsivity (IMP). Standardised factor loadings for all latent variables.

Figure 3. Confirmatory factor analysis for ASRS-S. Standardised factor loadings for all latent variables.

Figure 4. Receiver operating characteristic (ROC) analysis of the ASRSv1.1 and the ASRS-S, non-dichotomised and dichotomised scoring.

Table 2. ASRSv1.1 Non-dichotomised total points (0–72) and dichotomised points (0–18), ASRS-S non-dichotomised points (0–24) and dichotomised points (0–6), sensitivity, specificity, PPV and NPV for selected cut-off scores (optimal cut-off score marked in bold).

ASRSv1.1 non-dichotomised total points (0–72)
Cut-off score	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
32	95.1	44.5	39	96
36	87.8	55.5	42	92
40	78.0	69.1	48	89
ASRSv1.1 dichotomised points (0–18)
8	85.4	59.1	53	88
9	85.4	67.3	59	89
10	75.6	72.7	60	85
ASRS-S non-dichotomised total points (0–24)
13	90.2	59.1	54	92
14	87.8	65.5	58	90
15	78.0	70.0	59	89
ASRS-S dichotomised points (0–6)
3	92.7	54.5	53	93
4	70.7	73.6	60	83
5	41.5	93.6	77	74

Data availability statement

The data that support the findings of this study are available on reasonable request from the corresponding author. The data are not publicly available due to ethical restrictions, as they contain information that could compromise the privacy of research participants.