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[Geocoding one million of addresses using API: a semiautomatic multistep procedure].
Francesca Mataloni1, Lisa Bauleo2, Chiara Badaloni1
1Dipartimento di epidemiologia del Servizio sanitario regionale, Regione Lazio, ASL Roma 1, Roma.
Epidemiologia E Prevenzione
|April 21, 2022
Summary
A new geocoding procedure successfully mapped 99% of Lazio residence addresses, achieving high accuracy for over a million population points. This creates a valuable geographical database for regional health research.
Area of Science:
- Geographic Information Systems (GIS)
- Public Health Informatics
- Epidemiology
Background:
- Accurate geocoding of residential addresses is crucial for public health research.
- The Lazio Health Information System contains vital population data.
- A robust geographical database is needed for epidemiological studies in the Lazio Region.
Purpose of the Study:
- To geocode all residence addresses within the Lazio Health Information System.
- To establish a comprehensive geographical regional database.
- To facilitate future epidemiological research in the Lazio Region.
Main Methods:
- A semiautomatic, multistep geocoding procedure was developed.
- Multiple tools and software were integrated into the geocoding process.
- The procedure was applied to over one million residence addresses from the Lazio Region (2020).
Main Results:
- 99% of residence addresses in the Lazio Region were successfully geocoded.
- Approximately 94% of geocoded addresses achieved a good level of accuracy.
- Accuracy varied by province, with Rome showing 97.1% and Rieti/Frosinone lower percentages.
Conclusions:
- The developed geocoding method effectively provides accurate geographic coordinates for the regional population.
- The resulting geographical database is a valuable resource for epidemiological studies.
- This approach enhances the utility of health information systems for public health surveillance.
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