OBJECTIVE: To evaluate the validity of the multidimensional construct proposed by DSM-IV for the diagnosis of attention-deficit/hyperactivity disorder (ADHD) in a school sample of young Brazilian adolescents. METHOD: An instrument including all 18 DSM-IVADHD symptoms was administered to 1,013 students aged 12 to 14 years at 64 state schools by trained research assistants. Each symptom was rated on a Likert scale with five levels of severity (never, almost never, sometimes, frequently, and always). RESULTS: Using an exploratory factor analytic approach (principal components analysis), two factors were extracted. Factor I (hyperactivity-impulsivity) comprised eight DSM-IV hyperactive-impulsive symptoms with loadings > or =0.40. Factor II (inattention) included also eight DSM-IV symptoms of inattention. The two factors explained 34% of the total variance and had an interfactor correlation of 0.45. Latent class analysis demonstrated similar classes in males and females, but class structures were markedly different from previous analyses of parent report data. CONCLUSION: The findings support the appropriateness of the multidimensional construct introduced by DSM-IV in the diagnosis of ADHD in a different culture but emphasize the possible impact of different reporters on the results of structural model-testing.
OBJECTIVE: To evaluate the validity of the multidimensional construct proposed by DSM-IV for the diagnosis of attention-deficit/hyperactivity disorder (ADHD) in a school sample of young Brazilian adolescents. METHOD: An instrument including all 18 DSM-IVADHD symptoms was administered to 1,013 students aged 12 to 14 years at 64 state schools by trained research assistants. Each symptom was rated on a Likert scale with five levels of severity (never, almost never, sometimes, frequently, and always). RESULTS: Using an exploratory factor analytic approach (principal components analysis), two factors were extracted. Factor I (hyperactivity-impulsivity) comprised eight DSM-IV hyperactive-impulsive symptoms with loadings > or =0.40. Factor II (inattention) included also eight DSM-IV symptoms of inattention. The two factors explained 34% of the total variance and had an interfactor correlation of 0.45. Latent class analysis demonstrated similar classes in males and females, but class structures were markedly different from previous analyses of parent report data. CONCLUSION: The findings support the appropriateness of the multidimensional construct introduced by DSM-IV in the diagnosis of ADHD in a different culture but emphasize the possible impact of different reporters on the results of structural model-testing.
Authors: Maria T Acosta; F Xavier Castellanos; Kelly L Bolton; Joan Z Balog; Patricia Eagen; Linda Nee; Janet Jones; Luis Palacio; Christopher Sarampote; Heather F Russell; Kate Berg; Mauricio Arcos-Burgos; Maximilian Muenke Journal: J Am Acad Child Adolesc Psychiatry Date: 2008-07 Impact factor: 8.829
Authors: Ronald C Kessler; Jennifer Greif Green; Lenard A Adler; Russell A Barkley; Somnath Chatterji; Stephen V Faraone; Matthew Finkelman; Laurence L Greenhill; Michael J Gruber; Mark Jewell; Leo J Russo; Nancy A Sampson; David L Van Brunt Journal: Arch Gen Psychiatry Date: 2010-11
Authors: Kevin L Delucchi; Hilga Katerberg; S Evelyn Stewart; Damiaan A J P Denys; Christine Lochner; Denise E Stack; Johan A den Boer; Anton J L M van Balkom; Michael A Jenike; Dan J Stein; Danielle C Cath; Carol A Mathews Journal: Compr Psychiatry Date: 2010-08-05 Impact factor: 3.735
Authors: Josephine Elia; Mauricio Arcos-Burgos; Kelly L Bolton; Paul J Ambrosini; Wade Berrettini; Maximilian Muenke Journal: Psychiatry Res Date: 2009-11-08 Impact factor: 3.222
Authors: H Christiansen; W Chen; R D Oades; P Asherson; E A Taylor; J Lasky-Su; K Zhou; T Banaschewski; C Buschgens; B Franke; I Gabriels; I Manor; R Marco; U C Müller; A Mulligan; L Psychogiou; N N J Rommelse; H Uebel; J Buitelaar; R P Ebstein; J Eisenberg; M Gill; A Miranda; F Mulas; H Roeyers; A Rothenberger; J A Sergeant; E J S Sonuga-Barke; H-C Steinhausen; M Thompson; S V Faraone Journal: J Neural Transm (Vienna) Date: 2008-01-16 Impact factor: 3.575