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. 2024 Feb 14;53(2):dyae021.
doi: 10.1093/ije/dyae021.

Data Resource Profile: Registry of electronic health records of general practices in the north of The Netherlands (AHON)

Robin Twickler  1 , Marjolein Y Berger  1 , Feikje Groenhof  1 , Karina Sulim  1 , Liesbeth Ab  1 , Marco H Blanker  1 , Michiel R de Boer  1 , Nynke T Schouwenaars  1 , Guus C G H Blok  1 , Lilian L Peters  1
Affiliations

Data Resource Profile: Registry of electronic health records of general practices in the north of The Netherlands (AHON)

Robin Twickler et al. Int J Epidemiol. .
No abstract available

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Conflict of interest statement

None declared.

Figures

Figure 1.
Figure 1.
Active population by postal code (PC4) in the AHON Registry. To preserve privacy, only areas with ≥10 patients are included. AHON: Academic General Practitioner Development Network (Dutch: Academisch Huisartsen Ontwikkel Netwerk)
Figure 2.
Figure 2.
Total AHON registry population by year of entry. Data from before 2013 originate from the Registration Network Groningen database and are included in the AHON registry (note that this source may not be complete). The figure shows the number of patients for each reference year with their year of first occurrence in the registry, illustrating their follow-up. For example, when looking at the population for the reference year 2019, about 200 000 patients had been followed up since at least 2015. Newly affiliated practices extract data for the prior 5 years, meaning that practice inclusion of in 2017 led to population growth in 2013, and practice inclusion in 2022 led to population growth from 2018 onwards
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