Geographical variation in ADHD: do diagnoses reflect symptom levels?

ABSTRACT: Rates of ADHD diagnosis vary across regions in many countries. However, no prior study has investigated how much within-country geographic variation in ADHD diagnoses is explained by variation in ADHD symptom levels. We examine whether ADHD symptom levels explain variation in ADHD diagnoses among children and adolescents using nationwide survey and register data in Norway. Geographical variation in incidence of ADHD diagnosis was measured using Norwegian registry data from the child and adolescent mental health services for 2011-2016. Geographical variation in ADHD symptom levels in clinics' catchment areas was measured using data from the Norwegian mother, father and child cohort study for 2011-2016 (n = 39,850). Cross-sectional associations between ADHD symptom levels and the incidence o

SUBMITTER: Widding-Havneraas T 

PROVIDER: S-EPMC10460326 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature