Interphysician Differences in Emergency Department Length of Stay

Stephen Traub, Soroush Saghafian, Kurtis Judson, Christopher Russi, Bo Madsen, Stephen Cha, Hannah C. Tolson, Leon D. Sanchez, Jesse M. Pines

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Background: Emergency physicians differ in many ways with respect to practice. One area in which interphysician practice differences are not well characterized is emergency department (ED) length of stay (LOS). Objective: To describe how ED LOS differs among physicians. Methods: We performed a 3-year, five-ED retrospective study of non-fast-track visits evaluated primarily by physicians. We report each provider's observed LOS, as well as each provider's ratio of observed LOS/expected LOS (LOSO/E); we determined expected LOS based on site average adjusted for the patient characteristics of age, gender, acuity, and disposition status, as well as the time characteristics of shift, day of week, season, and calendar year. Results: Three hundred twenty-seven thousand, seven hundred fifty-three visits seen by 92 physicians were eligible for analysis. For the five sites, the average shortest observed LOS was 151 min (range 106–184 min), and the average longest observed LOS was 232 min (range 196–270 min); the average difference was 81 min (range 69–90 min). For LOSO/E, the average lowest LOSO/E was 0.801 (range 0.702–0.887), and the average highest LOSO/E was 1.210 (range 1.186–1.275); the average difference between the lowest LOSO/E and the highest LOSO/E was 0.409 (range 0.305–0.493). Conclusion: There are significant differences in ED LOS at the level of the individual physician, even after accounting for multiple confounders. We found that the LOSO/E for physicians with the lowest LOSO/E at each site averaged approximately 20% less than predicted, and that the LOSO/E for physicians with the highest LOSO/E at each site averaged approximately 20% more than predicted.

Original languageEnglish (US)
Pages (from-to)702-710.e1
JournalJournal of Emergency Medicine
Issue number5
StatePublished - May 1 2018


  • Emergency Department
  • length of stay
  • provider differences

ASJC Scopus subject areas

  • Emergency Medicine


Dive into the research topics of 'Interphysician Differences in Emergency Department Length of Stay'. Together they form a unique fingerprint.

Cite this