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Standardized scoring systems are available to risk-stratify hospitalized patients for venous thromboembolism (VTE), but many low-risk patients receive pharmacologic VTE prophylaxis anyway (NEJM JW Gen Med Jul 1 2018 and JAMA Intern Med 2018; 178:1122). In a retrospective study of inpatient pharmacologic VTE prophylaxis at 21 Kaiser Permanente hospitals in northern California, investigators compared risk assessment by admitting physicians with risk assessment according to electronic health record (EHR)–derived Padua VTE scores (calculated only for the purposes of this study).
In 82% of 850,000 adult nonsurgical, non–intensive care unit (ICU) hospitalizations, Padua scores categorized patients as low risk (i.e., not meeting indications for pha…