Hyperactivity and inattention are commonly reported in children with AD, but there is little documentation of symptom frequency. Rutter and Lokyer (1967) reported overactivity in half of 63 children in a study of infantile psychosis. Ando and Yoshimora (1979) studied 47 children with autism and reported 36% had hyperactivity. Chong et al. (1990) reported 47% of 66 children with autism were hyperactive. We studied a group of children from a genetic study of AD to determine the frequency of hyperactivity and inattention reported by parents. Of 66 SNAP-IVs completed by parents, 31 (47%) of the individuals exceeded X+1SD for inattention while 20 (30%) exceeded X+2SD. For hyperactivity the numbers were 22 (33%) and 13 (20%) respectively. Parents also completed the Aberrant Behavior Checklist (ABC). The hyperactivity sub-scale of the ABC includes both hyperactivity and inattention questions. Of 138 children, 33 (24%) exceeded the 85th percentile for hyperactivity. For 37 children, the SNAP-IV and ABC were completed within 6 months. The correlation between the ABC hyperactivity sub-scale and the sum of the SNAP-IV hyperactivity and inattention scores was 0.65. Examination of the ADHD symptoms may prove useful in stratifying the data set for linkage analysis.
|Original language||English (US)|
|Number of pages||1|
|Journal||American Journal of Medical Genetics - Neuropsychiatric Genetics|
|State||Published - Aug 7 2000|
ASJC Scopus subject areas
- Psychiatry and Mental health
- Cellular and Molecular Neuroscience