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[Maternal age as a risk factor for congenital malformations]
1Departamento de Biología Celular y Genética, Facultad de Medicina, Universidad de Chile, Hospital José Joaquín Aguirre, Santiago de Chile.
Revista Medica De Chile
|March 1, 1994
Summary
Maternal age is linked to congenital malformations. This study found that the risk of birth defects increases with advancing maternal age, a trend observed over several years.
Area of Science:
- Obstetrics and Gynecology
- Pediatrics
- Public Health
Context:
- A retrospective analysis of 131,899 births at the University of Chile Clinical Hospital.
- Examined congenital malformations and stillbirths between January 1982 and December 1992.
- Investigated trends in malformation rates and their correlation with maternal age.
Purpose:
- To determine the prevalence of congenital malformations in a large birth cohort.
- To assess the relationship between maternal age and the incidence of birth defects.
- To analyze temporal trends in congenital malformation rates.
Summary:
- Identified 4887 newborns with congenital malformations, a rate of 37.05 per 1000 live births.
- Observed 295 stillbirths (0.7%), with 41 (13.9%) being malformed.
- Found a sustained increase in malformation rates from 1972 to 1988, followed by a decrease and stabilization since 1982.
- Demonstrated a significant positive correlation between maternal age and congenital malformation rates.
Impact:
- Highlights the critical role of maternal age as a risk factor for congenital malformations.
- Provides valuable data for prenatal counseling and risk assessment.
- Informs public health strategies aimed at reducing the burden of birth defects.