Validation of sources of pertussis immunisation data

Area of Science:

• Public Health
• Epidemiology
• Immunisation Data Validation

Background:

• Accurate immunisation records are crucial for epidemiological studies, particularly for vaccine-preventable diseases like whooping cough (pertussis).
• West Glamorgan initiated a study on whooping cough, necessitating the validation of available immunisation data sources.

Purpose of the Study:

• To validate and compare the reliability of three distinct sources of immunisation data.
• To determine the most accurate data source for future epidemiological research on whooping cough in the study region.

Main Methods:

• Validation of immunisation data from three sources: general practitioners, parents, and the area health authority.
• Comparative analysis of data accuracy and completeness across the identified sources.

Main Results:

• Parental records emerged as the most reliable source for whooping cough immunisation status.
• General practitioner records were found to be the least reliable data source.
• Area health authority data is viable for future studies if adequate time is allocated for data compilation and computerisation.

Conclusions:

• The reliability of immunisation data varies significantly between sources.
• Parental recall provides a highly accurate method for documenting immunisation history in whooping cough studies.
• Area health authority data can be effectively utilised with proper logistical planning for data management.