Linked versus unlinked hospital discharge data on hip fractures for estimating incidence and comorbidity profiles
Open Access
- 1 August 2012
- journal article
- research article
- Published by Springer Nature in BMC Medical Research Methodology
- Vol. 12 (1) , 113
Abstract
Studies comparing internally linked (person–identifying) and unlinked (episodes of care) hospital discharge data (HDD) on hip fractures have mainly focused on incidence overestimation by unlinked HDD, but little is known about the impact of overestimation on patient profiles such as comorbidity estimates. In view of the continuing use of unlinked HDD in hip fracture research and the desire to apply research results to hip fracture prevention, we concurrently assessed the accuracy of both incidence and comorbidity estimates derived from unlinked HDD compared to those estimated from internally linked HDD.Keywords
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