Long-Term Effectiveness of Guided Self-Help for Parents of Children With ADHD in Routine Care-An Observational Study.

To assess long-term effectiveness of guided self-help for parents of children with ADHD under routine care conditions. 6- to 12-year-old children diagnosed with ADHD were enrolled in an observational study on a 1-year telephone-assisted parent-administered behavioral intervention. = 136 families who completed the intervention participated in a follow-up assessment. Pre-, post-, and follow-up data were analyzed by repeated measures ANOVA with planned contrasts. Clinical significance was analyzed according to the reliable change index. Child ADHD symptoms (primary outcome), oppositional defiant disorder (ODD) symptoms, overall behavioral problems, and quality of life improved during the intervention. There was a further improvement in ADHD symptoms at follow-up, with a medium effect size. Improvements during treatment in ODD symptoms, overall behavioral problems, and quality of life were maintained at follow-up. The findings suggest that telephone-assisted self-help interventions may result in a long-term reduction of child behavior problems.