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Published on: June 15, 2011

[The association between paternal age and schizophrenia in a Chinese Han population]

Yue-jing Wu1, Xiang Liu, Gao-feng Zhao

  • 1The Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 P. R. China.

Zhonghua Yi Xue Yi Chuan Xue Za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics
|June 7, 2011
PubMed

Insights

Advanced paternal age significantly increases schizophrenia risk in offspring within the Chinese Han population. This finding highlights the importance of parental age in psychiatric disorder etiology.

Area of Science:

  • Psychiatry
  • Genetics
  • Epidemiology

Background:

  • Advanced paternal age is a potential risk factor for psychiatric disorders.
  • Schizophrenia is a complex mental disorder with genetic and environmental influences.

Purpose of the Study:

  • To determine the association between advanced paternal age and schizophrenia risk.
  • To investigate this relationship in the Chinese Han population.

Main Methods:

  • A case-control study involving 351 schizophrenia patients and 199 healthy controls.
  • Logistic regression analysis was used to assess the odds ratio (OR) of schizophrenia based on paternal age categories.
  • Covariates included participant's sex, age, and parental age at birth.

Main Results:

  • A significant increase in schizophrenia risk was observed with advanced paternal age (ORs of 3.834, 8.805, and 11.619 for ages 31-35, 36-40, and ≥41 years, respectively).
  • Advanced maternal age did not show a significant effect on schizophrenia risk.

Conclusions:

  • Advanced paternal age is a significant risk factor for schizophrenia in offspring in the Han Chinese population.
  • Potential biological mechanisms include accumulated de novo mutations and epigenetic alterations during spermatogenesis.
Abstract

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