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An exploratory analysis of the relationship between paternal age at pregnancy and difficulties symptomatic of

Hiroki Ohmi1,2, Hiromi Muranaka2, Haruko Hirano2

  • 1Department of Nutritional Sciences, Faculty of Health and Welfare Science, Nayoro City University, Japan.

Journal of Rural Medicine : JRM
|January 14, 2021
PubMed

Insights

Paternal age during pregnancy may influence learning disorder development. This study found a link between older fathers and increased learning difficulties in their children, suggesting a potential risk factor.

Area of Science:

  • Neurodevelopmental disorders
  • Genetics
  • Reproductive medicine

Background:

  • Neurodevelopmental disorders often stem from prenatal and perinatal factors.
  • Previous research linked parental age to ADHD and ASD, but not learning disorders.
  • Environmental toxins are known risk factors for learning disorders.

Purpose of the Study:

  • To investigate the relationship between parental age at pregnancy and neurodevelopmental disorders.
  • To explore potential links between prenatal/perinatal data and learning disorder difficulties.

Main Methods:

  • 993 university freshmen participated, with prenatal/perinatal data from handbooks.
  • A 24-item mental health questionnaire assessed neurodevelopmental disorder symptoms.
  • Statistical analysis, including Spearman's rank correlation, was performed.

Main Results:

  • 881 (88.7%) records were available for analysis.
  • A weak but significant correlation was found between paternal age and learning disorder scores.
  • No significant association was found with maternal age or other neurodevelopmental disorders.

Conclusions:

  • Paternal age at pregnancy may be a risk factor for learning disorders.
  • Meiotic error accumulation during spermatogenesis could explain this association.
  • Further research is needed to confirm these findings.

Keywords:
Japanese undergraduate studentsdifficulties symptomatic of specific learning disorderserror accumulation in meiosis during spermatogenesispaternal age at pregnancy

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