Exploration of Ambulatory Care Physician Phenotypes for Electronic Health Record Use (Preprint)
BACKGROUND Electronic health records (EHRs) have become ubiquitous in United States office-based physician practices. However, the different ways users engage with EHRs remains poorly characterized. OBJECTIVE The objective of this paper is to explore EHR usage phenotypes amongst ambulatory care physicians. METHODS We applied affinity propagation, an unsupervised clustering machine learning technique, to identify EHR user types amongst primary care physicians. RESULTS We identified four distinct clusters generalized across internal medicine, family medicine, and pediatric specialties. Two groups, or phenotype clusters, of physicians with higher-than-average work outside of scheduled hours ratios had varied EHR usage suggesting one group may have worked from home out of necessity while the other preferred ad hoc work hours. From the two remaining groups, one group represented physicians with lower-than-average EHR time. The last group represented physicians who spend the largest proportion of their EHR time documenting notes. CONCLUSIONS These findings demonstrate the utility of cluster analysis for exploring EHR phenotypes and may offer opportunities for interventions to improve EHR design and use to better support EHR users’ needs.