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Arquivos de Neuro-Psiquiatria

Print version ISSN 0004-282X

Arq. Neuro-Psiquiatr. vol.44 no.2 São Paulo June 1986

http://dx.doi.org/10.1590/S0004-282X1986000200006 

Posição ordinal dos filhos, sexo e esquizofrenia

 

Birth order, sex and schizophrenia

 

 

Antonios I. Térzis

Professor Titular do Departamento de Pós-Graduação em Psicologia Clinica, Pontifícia Universidade Católica de Campinas (PTJCCAMP)

 

 


RESUMO

O presente estudo investigou a hipótese de associação entre a posição ordinal dos filhos dentro de sua prole e a prevalência da esquizofrenia. Para examinar o objetivo acima proposto, foram observados 404 pacientes esquizofrênicos (201 do sexo masculino e 203 do sexo feminino) que estavam internados em 5 hospitais da área metropolitana de São Paulo. O método estatístico utilizado, que permitiu a análise dos efeitos da ordem de nascimento sobre a prevalência de esquizofrenia, foi o de Greenwood-Yule. Verificou-se que existe associação entre ordem de nascimento e esquizofrenia e que esta relação pode ser descrita em termos de um excesso de primogênitos esquizofrênicos, tanto masculinos como femininos.


SUMMARY

The purpose of the present study is to investigate the hypothesis of association between the children's ordinal position in the sibship and the prevalence of schizophrenia. In order to examine the proposal above mentioned 404 schizophrenic pacients (201 males and 203 females) from five psychiatric hospitals in the Greater São Paulo were observed. The statistical method here employed, which permitted the analysis of the effects of birth order on the prevalence of schizophrenia, was that of Greenwood-Yule. It was found that there is an association between birth order and schizophrenia, and that this relation may be described in terms of an excess of schizophrenia among first-borns, both male and female.


 

 

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