Positive Predictive Value of French Hospitalization Discharge Codes for Stroke and Transient Ischemic Attack.
<b><i>Background:</i></b> We aimed at measuring the positive predictive value (PPV) of data in the French Hospital Medical Information Database (FHD). <b><i>Summary:</i></b> This retrospective multicenter study included 31 hospitals from where 56 hospital stays were randomly selected among all hospitalizations for the years 2009 and 2010 with at least 1 principal diagnosis of stroke or transient ischemic attack (TIA). Three algorithms were evaluated. Algorithm 1 selected discharge abstracts with at least 1 principal diagnosis identified by one of the relevant International Classification of Diseases, 10th revision codes. Algorithm 2 selected s…