Factor analysis on ADHD and autism spectrum disorder DSM-IV-derived items shows lack of overlap.

摘要: I studied with interest the review article about shared heritability of attention-deficit/hyperactivity disorder (ADHD) and autism spectrum (ASD). The authors mentioned that there is a considerable rate co-morbidity ADHD ASD. It was concluded are similar familial/genetic factors for ASD origins. recommended in children both should be examined instead only one conditions. discussed co-occurrence two disorders may due to overlapping diagnostic criteria resulting inflated co-morbidity. Then they their ‘‘vital concern’’ ‘‘as far as know, no studies exist have performed factor analysis on DSM-IVderived items examine extent criteria’’ [1]. There an argument Diagnostic Statistical Manual Mental Disorders 4th edition (DSM-IV) precludes making diagnosis [2]. However, many reports these [3, 4]. Herein, results re-analysis study symptoms community sample 1,600 school aged presented. More information sampling method participants presented before. Valid reliable parent-completed, DSM-IV-referenced rating scales were used [5, 6]. Exploratory varimax rotation conducted 30 (including 12 18 ADHD). Kaiser–Meyer–Olkin measure adequacy 0.92, Bartlett’s test sphericity \0.001. indicated 52.5% variance explained by solution. Factor number determined eigenvalue more than 1. loading six shown Table A confirmatory fixed also conducted. According analyses, Therefore, support idea ‘‘the high most likely not ASD’’