Paternal Age and Schizophrenia Risk in Iran
Author Information
Author(s): Naserbakht Morteza, Ahmadkhaniha Hamid-Reza, Mokri Bahareh, Smith Cassandra L
Primary Institution: Tehran University of Medical Sciences
Hypothesis
Is advanced paternal age a risk factor for schizophrenia in an Iranian population?
Conclusion
The study found that advanced paternal age is linked to a higher risk of schizophrenia in Iranian families.
Supporting Evidence
- 35% of schizophrenia cases were in the third or higher birth rank compared to 24% of controls.
- The mean paternal age at birth was significantly higher in the case group (30 years) than in the control group (26.45 years).
- Individuals with fathers older than 32 years had a 2.77 times higher risk of schizophrenia.
Takeaway
Having an older dad might make kids more likely to get schizophrenia, especially if they are born later in the family.
Methodology
A case-control study comparing 220 schizophrenia patients with 220 matched controls.
Potential Biases
Potential biases in self-reported family history and the exclusion of certain groups.
Limitations
The study is limited to a specific cultural group and may not generalize to other populations.
Participant Demographics
Participants included 220 schizophrenia patients and 220 matched controls, matched for sex and age.
Statistical Information
P-Value
0.0001
Confidence Interval
95% CI 1.80 to 4.27
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website