Background: Real-world data of disease prevalence represents an important but underutilised source of evidence for health economic modelling.
Aims: The aim of this study was to estimate nationwide prevalence rates and summarise the characteristics of 199 chronic conditions using Danish population-based health registers, to provide an off-the-shelf tool for decision makers and researchers.
Methods: The study population comprised all Danish residents aged 16 years or above on 1 January 2013 (n = 4,555,439).