(Dis)concordance of comorbidity data and cancer status across administrative datasets, medical charts, and self-reports.
A SheriffdeenJ L MillarC MartinM EvansG TikellisSusan EvansPublished in: BMC health services research (2020)
Relying on a single data source to generate comorbidity indices for risk-modelling purposes may fail to capture the reality of a patient's disease profile. There does not appear to be a 'gold-standard' data source for the collection of data on comorbidities.