biostudies-literatureUnknown7(2)Brod MThe adult attention-deficit/hyperactivity disorder (ADHD) quality-of-life (AAQoL) scale was previously validated in adult patients in the USA; here, the AAQoL is validated in adult European patients. Data from a 12-week open-label acute treatment period with atomoxetine (80-100 mg/day) in adults with ADHD were used. Patients (≥ 18 to ≤ 50 years old) had a score ≥ 2 on ≥ 6 items on the inattentive or hyperactive core subscales of Conners' Adult ADHD Rating Scale-Investigator Rated: Screening Version (CAARS-Inv:SV); a CAARS-Inv:SV 18-item total ADHD symptom score ≥ 20; and Conners' Adult ADHD Rating Scale-Observer: Screening Version 6-item inattentive or hyperactive core subscale scores ≥ 2. Data were stratified based on patients' geographic region (Europe vs USA). Scale validation psychometAttention deficit and hyperactivity disorders141-50https://www.ebi.ac.uk/biostudies/studies/S-EPMC4449381biostudies-literatureValidation of the adult attention-deficit/hyperactivity disorder quality-of-life scale in European patients: comparison with patients from the USA.PMC4449381Tanaka YUpadhyaya HAdler LABrod MLipsius SHeinloth ANfalseValidation of the adult attention-deficit/hyperactivity disorder quality-of-life scale in European patients: comparison with patients from the USA.The adult attention-deficit/hyperactivity disorder (ADHD) quality-of-life (AAQoL) scale was previously validated in adult patients in the USA; here, the AAQoL is validated in adult European patients. Data from a 12-week open-label acute treatment period with atomoxetine (80-100 mg/day) in adults with ADHD were used. Patients (≥ 18 to ≤ 50 years old) had a score ≥ 2 on ≥ 6 items on the inattentive or hyperactive core subscales of Conners' Adult ADHD Rating Scale-Investigator Rated: Screening Version (CAARS-Inv:SV); a CAARS-Inv:SV 18-item total ADHD symptom score ≥ 20; and Conners' Adult ADHD Rating Scale-Observer: Screening Version 6-item inattentive or hyperactive core subscale scores ≥ 2. Data were stratified based on patients' geographic region (Europe vs USA). Scale validation psychomet2015-01-01T00:00:00Z2015 Jun2026-04-14T15:34:23.112Z2019-03-27T01:52:26ZS-EPMC44493812556321010.1007/s12402-014-0160-z