Abstract
OBJECTIVETo determine if natural language processing (NLP) improves detection of nonsevere hypoglycemia (NSH) in patients with type 2 diabetes and no NSH documentation by diagnosis codes and to measure if NLP detection improves the prediction of future severe hypoglycemia (SH).RESEARCH DESIGN AND METHODSFrom 2005 to 2017, we identified NSH events by diagnosis codes and NLP. We then built an SH prediction model.RESULTSThere were 204,517 patients with type 2 diabetes and no diagnosis codes for NSH. Evidence of NSH was found in 7,035 (3.4%) of patients using NLP. We reviewed 1,200 of the NLP-detected NSH notes and confirmed 93% to have NSH. The SH prediction model (C-statistic 0.806) showed increased risk with NSH (hazard ratio 4.44; P < 0.001). However, the model with NLP did not improve SH prediction compared with diagnosis code–only NSH.CONCLUSIONSDetection of NSH improved with NLP in patients with type 2 diabetes without improving SH prediction.
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