Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.

It is not clear whether sibling's gender ratio is associated with attention deficit hyperactivity disorder (ADHD). This study examines whether inattentiveness severity and hyperactivity/impulsivity severity are associated with birth order of children with ADHD.Participants are a clinical sample...

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Main Authors: Ahmad Ghanizadeh, Marzie Abotorabi-Zarchi, Mohammad Reza Mohammadi, Ali Firoozabadi
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2012-09-01
Series:Iranian Journal of Psychiatry
Subjects:
Online Access:https://ijps.tums.ac.ir/index.php/ijps/article/view/240
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author Ahmad Ghanizadeh
Marzie Abotorabi-Zarchi
Mohammad Reza Mohammadi
Ali Firoozabadi
author_facet Ahmad Ghanizadeh
Marzie Abotorabi-Zarchi
Mohammad Reza Mohammadi
Ali Firoozabadi
author_sort Ahmad Ghanizadeh
collection DOAJ
description It is not clear whether sibling's gender ratio is associated with attention deficit hyperactivity disorder (ADHD). This study examines whether inattentiveness severity and hyperactivity/impulsivity severity are associated with birth order of children with ADHD.Participants are a clinical sample of 173 children and adolescents with ADHD and 43 ones without ADHD. Diagnoses were made using Diagnostic and Statistical Manual of Mental Disorders forth edition-Text Revision (DSM-IV-TR), diagnostic criteria according to face-to-face interview with the children and their parents. ADHD DSM-IV checklist was used to measure inattentiveness and hyperactivity/impulsivity scores.The association of birth order and diagnosis of ADHD was not statistically significant after adjusting for covariate factors. The gender ratio of siblings is not associated with ADHD.Birth order and siblings gender ratio are independent of ADHD diagnosis. The results of this study support the fact that genetic factors rather than environmental factor of birth order is associated with ADHD. Moreover, contrary to autism, the current results do not suggest the androgen theory for ADHD.
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spelling doaj.art-7e216d8436b74ab59da228fa01944de62022-12-21T23:17:29ZengTehran University of Medical SciencesIranian Journal of Psychiatry1735-45872008-22152012-09-0173Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.Ahmad Ghanizadeh0Marzie Abotorabi-Zarchi1Mohammad Reza Mohammadi2Ali Firoozabadi3Research Center for Psychiatry and Behavioral Sciences, 2Department of Psychiatry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. It is not clear whether sibling's gender ratio is associated with attention deficit hyperactivity disorder (ADHD). This study examines whether inattentiveness severity and hyperactivity/impulsivity severity are associated with birth order of children with ADHD.Participants are a clinical sample of 173 children and adolescents with ADHD and 43 ones without ADHD. Diagnoses were made using Diagnostic and Statistical Manual of Mental Disorders forth edition-Text Revision (DSM-IV-TR), diagnostic criteria according to face-to-face interview with the children and their parents. ADHD DSM-IV checklist was used to measure inattentiveness and hyperactivity/impulsivity scores.The association of birth order and diagnosis of ADHD was not statistically significant after adjusting for covariate factors. The gender ratio of siblings is not associated with ADHD.Birth order and siblings gender ratio are independent of ADHD diagnosis. The results of this study support the fact that genetic factors rather than environmental factor of birth order is associated with ADHD. Moreover, contrary to autism, the current results do not suggest the androgen theory for ADHD.https://ijps.tums.ac.ir/index.php/ijps/article/view/240Attention deficit disorder with hyperactivityBirth orderSex ratio
spellingShingle Ahmad Ghanizadeh
Marzie Abotorabi-Zarchi
Mohammad Reza Mohammadi
Ali Firoozabadi
Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
Iranian Journal of Psychiatry
Attention deficit disorder with hyperactivity
Birth order
Sex ratio
title Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
title_full Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
title_fullStr Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
title_full_unstemmed Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
title_short Birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder.
title_sort birth order and sibling gender ratio of a clinical sample of children and adolescents diagnosed with attention deficit hyperactivity disorder
topic Attention deficit disorder with hyperactivity
Birth order
Sex ratio
url https://ijps.tums.ac.ir/index.php/ijps/article/view/240
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