Positive predictive value of cardiovascular diagnoses in the Danish National Patient Registry: a validation study

The majority of cardiovascular diagnoses in the Danish National Patient Registry (DNPR) remain to be validated despite extensive use in epidemiological research. We therefore examined the positive predictive value (PPV) of cardiovascular diagnoses in the DNPR.Population-based validation study.1 university hospital and 2 regional hospitals in the Central Denmark Region, 2010-2012.For each cardiovascular diagnosis, up to 100 patients from...