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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.
Objectives:
to geocode all residence addresses from Lazio Health Information System in order to obtain a geographical regional database.
Design:
a semiautomatic and multistep geocoding procedure using several tools and software.
Setting And Participants:
all residence addresses of resident population of Lazio Region (Central Italy) in 2020.
Main Outcome Measures:
geographic coordinates at residence addresses and accuracy level of geocoding procedure for more than 1 million of addresses.
Results:
the 99% of residence addresses in the Lazio Region have been geocoded thanks to the purposed procedure; almost 94% of the addresses have been geocoded with a good level of accuracy (more than 56% at civic number level). In the province of Rome, the percentage of addresses geocoded with a good level of accuracy is higher (97.1%), while in the province of Rieti and Frosinone is lower (82.7% and 84.2%, respectively).
Conclusions:
this method is useful to obtain accurate geographic coordinates of residences of the entire regional population. This database will be useful for several epidemiological studies in the Region.
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