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The Latent Class Structure of ADHD Is Stable Across Informants

  • Robert R. Althoff (a1), William E. Copeland (a2), Catherine Stanger (a3), Eske M. Derks (a4), Richard D. Todd (a5), Rosalind J. Neuman (a6), Toos C. E. M. Van Beijsterveldt (a7), Dorret I. Boomsma (a8) and James J. Hudziak (a9)...

Abstract

Previous studies have looked at the structure of attention-deficit/hyperactivity disorder (ADHD) using latent class analysis (LCA) of Child Behavior Checklist (CBCL) or Diagnostic and Statistical Manual of Mental Disorders (DSM) symptom structure. These studies have identified distinct classes of children with inattentive, hyperactive, or combined subtypes and have used these classes to refine genetic analyses. The objective of the current report is to determine if the latent class structure of ADHD subtypes is consistent across informant using the Conners' Rating Scales (CRS). LCA was applied to CRS forms from mother, father, and teacher reports of 1837, 1329 and 1048 latency aged Dutch twins, respectively. The optimal solution for boys was a 5-class solution for mothers, a 3-class solution for fathers, and a 4-class solution for teachers. For girls, a 4-class solution for mothers and a 3-class for fathers and teachers was optimal. Children placed into a class by one informant had markedly increased odds ratio of being placed into the same or similar class by the other informants. Results from LCA using Dutch twins with the CRS show stability across informants suggesting that more stable phenotypes may be accessible for genotyping using a multi-informant approach.

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Copyright

Corresponding author

*Address for correspondence: James J. Hudziak, University of Vermont, Department of Psychiatry, Division of Behavioral Genetics, Given B229, Burlington, VT 05405, USA.

The Latent Class Structure of ADHD Is Stable Across Informants

  • Robert R. Althoff (a1), William E. Copeland (a2), Catherine Stanger (a3), Eske M. Derks (a4), Richard D. Todd (a5), Rosalind J. Neuman (a6), Toos C. E. M. Van Beijsterveldt (a7), Dorret I. Boomsma (a8) and James J. Hudziak (a9)...

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