[Prevalence of and screening for ADHD in Costa Rica].

Title[Prevalence of and screening for ADHD in Costa Rica].
Publication TypeJournal Article
Year of Publication2011
AuthorsBerrocal, M, Peskin V, Weiss N, Schuler J, Monge S, McGough JJ, Chavira D, Bagnarello M, Herrera LD, Mathews CA
JournalVertex (Buenos Aires, Argentina)
Date Published2011 Sep-Oct

This research project sought to estimate the prevalence of Attention-Deficit/Hyperactivity Disorder (ADHD) and to determine if the Swanson Nolan and Pelham Rating Scale IV (SNAP-IV) Spanish version is a useful screening tool in a population of Costa Rican school children. The SNAP-IV Spanish version was given to the parents and teachers of 425 children aged 5 to 13 (mean 8.8). All subjects were also assessed with the Swanson, Kotkin, Agler, M-Flynn and Pelham Scale (SKAMP), along with diagnostic confirmation by clinical interview. The sensitivity and specificity of the SNAP-IV was assessed as a predictor of DSM-IV ADHD diagnosis. The point prevalence of Attention Deficit Hyperactivity Disorder (ADHD) in this sample was 5%. The prevalence of ADHD among girls was 7%, while that among boys was 4%. The optimal screen was the teacher-rated SNAP-IV at a 20% cutoff, which had a sensitivity of 96% and specificity of 82%. Parent sensitivities were lower than teacher sensitivities. SNAP-IV teacher ratings with a cutoff isolating the top 20% of scores correctly categorized 87% of children.

Alternate JournalVertex