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Follow-up validation study of the Victorian Congenital Malformations Register
M Kilkenny1, M Riley, J Lumley
1Perinatal Data Collection Unit, Department of Health and Community Services, Fitzroy, Victoria, Australia.
Insights
The Victorian Congenital Malformations Register (VCMR) shows significant improvement in tracking birth defects. Ascertainment of malformations, especially chromosomal anomalies, was high by 1992.
Area of Science:
- Public Health
- Medical Informatics
- Epidemiology
Background:
- The Victorian Congenital Malformations Register (VCMR) is crucial for monitoring birth defects.
- Previous validation studies assessed the completeness of VCMR ascertainment.
Purpose of the Study:
- To evaluate the improvement in malformation ascertainment by the VCMR.
- To compare current ascertainment rates with historical data.
Main Methods:
- A review of medical records for 500 children under four years old admitted to two Victorian pediatric hospitals in 1992.
- Comparison of recorded defects with notifications to the VCMR.
Main Results:
- Over 75% of recorded defects were notified to the VCMR.
- 100% ascertainment was achieved for chromosomal anomalies.
- A high proportion of major structural malformations were successfully notified.
Conclusions:
- Ascertainment of congenital malformations in the VCMR has markedly improved since 1986.
- The findings indicate enhanced data completeness for public health surveillance.
- The study validates the effectiveness of improvements in the VCMR system.
Objective:
To determine whether there has been an improvement in ascertainment of malformations in the Victorian Congenital Malformations Register (VCMR).
Methodology:
The medical records of 500 children under 4 years of age admitted consecutively to two paediatric teaching hospitals in Victoria in 1992 were viewed to determine whether these cases had been notified to the Register.
Results:
Over three-quarters of the defects recorded had been notified to VCMR. There was 100% ascertainment of chromosomal anomalies and a high proportion of major structural malformations were notified.
Conclusion:
This study repeats the validation study completed in 1986 and shows marked improvement in ascertainment of malformations in the VCMR by 1992.