Use of hospitalisation history (lookback) to determine prevalence of chronic diseases: impact on modelling of risk factors for haemorrhage in pregnancy
<p>Abstract</p> <p>Background</p> <p>Concern about the completeness of comorbidity information in hospital records has been raised as a limitation of using hospital discharge data for research. The aim of this study is to assess the impact of additional comorbidity info...
|Main Authors:||, , ,|
|Series:||BMC Medical Research Methodology|