Electronic patient records
In the Netherlands, general practitioners keep an electronic patient record of each patient. This electronic patient record covers all medical information concerning the patient, including information on medication prescriptions and reports from laboratories and specialists. Medication prescriptions are coded according to the Anatomical Therapeutic Chemical (ATC) codes. Confirmed diagnoses are coded according to the International Classification of Primary Care (ICPC).
Collection of clinical endpoints via electronic patient records
Incident diagnoses of the clinical endpoints are extracted from the electronic patient records of the NEO participants. Four years after the start of the study, data were extracted for the first time. Data extractions are repeated at regular intervals. Up to now, the following diagnoses have been extracted from electronic patient records:
- cardiovascular disease
Prevalent diagnoses to assess medical history at baseline
In addition, electronic patient records are used to retrieve information about the medical history at baseline of the participants. When available, this information is used to either complement or replace the self-reported medical history obtained by questionnaire.
Please read this page for further information on how to perform research with the NEO study.