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Created on : 12 Nov 2004
Modified on : 02 Dec 2007

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Bibliographical entry (without author) :

Paternal age and schizophrenia: a population based cohort study. The British Medical Journal 2004;329:1070.

Author(s) :

Sipos A, Rasmussen F, Harrison G, Tynelius P, Lewis G, Leon DA, Gunnell D.

Year of publication :

2004

URL(s) :

http://bmj.bmjjournals.com/cgi/content/full/bmj;32…

Résumé (français)  :

Abstract (English)  :

Objective To investigate the association of paternal age at conception with the risk of offspring developing schizophrenia.

Design A population based cohort study.

Setting Sweden.

Subjects 754 330 people born in Sweden between 1973 and 1980 and still alive and resident in Sweden at age 16 years.

Main outcome measures Hospital admission with schizophrenia or non-schizophrenic, non-affective psychosis.

Results After adjustment for birth related exposures, socioeconomic factors, family history of psychosis, and early parental death the overall hazard ratio for each 10 year increase in paternal age was 1.47 (95% confidence interval 1.23 to 1.76) for schizophrenia and 1.12 (0.98 to 1.29) for non-schizophrenic non-affective psychosis. This association between paternal age and schizophrenia was present in those with no family history of the disorder (hazard ratio for each 10 year increase in paternal age 1.60, 1.32 to 1.92), but not in those with a family history (0.91, 0.44 to 1.89) (P = 0.04 for interaction).

Conclusions Advancing paternal age is an important independent risk factor for schizophrenia. The stronger association between paternal age and schizophrenia in people without a family history provides further evidence that accumulation of de novo mutations in paternal sperm contributes to the overall risk of schizophrenia.

Sumário (português)  :

Resumen (español)  :

Comments :

Ils n’ont pas l’air de tenir compte de l’age maternel aussi …

Argument (français) :

Argument (English):

Argumento (português):

Argumento (español):

Keywords :

➡ psychology

Author of this record :

Cécile Loup — 12 Nov 2004