The Relationship between Birth Weight and Birth Season with Frequency of Attention Deficit and Hyperactivity Disorder

Background and Aim : he aim of this study was to investigate the relationship between birth weight and birth season with frequency of attention deficit and hyperactivity disorder in primary school children.Methods : The statistical population of this study was all children with hyperactivity/restlessness disorder aged 6-12 years old in Tehran. From this population through available & targeted sampling 96 people who were diagnosed of having ADHD through Conner s (1999) questionnaire and clinical interview were selected as sample. Their hyperactivity was measured by the Conner s (1999) questionnaire and demographic information, birth weight and the birth season was collected by a researcher-made questionnaire.Results : Correlation analysis with SPSS23 software showed that there is a reverse and significant relationship between birth weight and hyperactivity at 0.05 and birth weight with negative coefficient can predict hyperactivity and restlessness. On the other hand, the results of the χ2 test showed no significant difference between the frequency of children with ADHD born in different seasons.Conclusion : Therefore, it can be concluded that birth weight is related to ADHD, but the birth season is not related to this disorder.

Keywords:

Attention deficit and Hyperactivity Disorder , Birth weight , Birth season