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Do children born after assisted conception have less risk of developing infantile autism?
Rikke Damkjaer Maimburg1, Michael Vaeth
1Institute of Public Health, Department of Epidemiology, University of Aarhus, Vennelyst, Boulevard 6, 8000 Aarhus C, and Department of Obstetrics and Gynecology, Aarhus University Hospital, Skejby, Denmark. rmai@soci.au.dk
Insights
Children conceived via assisted conception show a significantly lower risk of developing infantile autism. This finding suggests potential links to maternal health factors, warranting further research into autism risk.
Area of Science:
- Perinatal health
- Neurodevelopmental disorders
- Reproductive medicine
Background:
- Investigated perinatal risk factors for infantile autism.
- Examined the association between assisted conception and infantile autism.
- Utilized a Danish population-based matched case-control study design.
Purpose of the Study:
- To explore the relationship between assisted conception and the risk of infantile autism.
- To identify potential perinatal risk factors associated with infantile autism.
- To analyze obstetric factors in children diagnosed with infantile autism.
Main Methods:
- Conducted a matched case-control study in Denmark.
- Included 461 children diagnosed with infantile autism (cases) born between 1990-1999.
- Matched controls were identified from the Danish Civil Registration System.
Main Results:
- Children conceived via assisted conception had a 59% decreased risk of infantile autism (OR 0.41).
- After adjusting for known risk factors, the decreased risk remained significant (OR 0.37).
- Obstetric risk factors were analyzed in relation to infantile autism development.
Conclusions:
- Children born after assisted conception demonstrated a reduced risk of developing infantile autism.
- Maternal health status during early pregnancy may influence these findings.
- Further investigation in larger cohorts is recommended to validate these observations.
Background:
A Danish population based matched case-control study of perinatal risk factors in children with infantile autism has provided some interesting and surprising observations regarding infantile autism and children born after assisted conception.
Methods And Results:
The cases (461) consisted of all children born between 1990 and 1999 and diagnosed with infantile autism in the Danish Psychiatric Central Register before February 2001. Matched controls were identified in the Danish Civil Registration System. The main exposure measures included obstetric risk factors for infantile autism. We found a 59% decreased risk for developing infantile autism among children conceived after assisted conception (odds ratio [OR] 0.41, 95% [0.19-0.89]) and a 63% decreased risk after adjusting for known risk factors for assisted conception and infantile autism (OR 0.37, 95% [0.14-0.98]).
Conclusion:
We found that children born after assisted conception had a lower risk of developing infantile autism then their matched controls. Our observations could possibly be explained by the mother's health status before and during early pregnancy. Our findings require further investigation in larger studies.
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