Adoption of a gastroenterology hospitalist model and the impact on inpatient endoscopic practice volume: a controlled interrupted time-series analysis.

Background and Aims: The gastroenterology (GE) hospitalist staffing model has multiple potential benefits for the inpatient and outpatient care of GE patients. The GE hospitalist model may improve inpatient endoscopy efficiency via better provider familiarity with management of GE emergencies, hospital systems, and workflow, and may also increase outpatient endoscopy capacity by decreasing the need for inpatient coverage by outpatient providers. However, the real-world impact of this model on inpatient and outpatient endoscopic volume remains uncertain. Methods: We conducted a controlled interrupted time-series analysis from September 2018 to March 2020 comparing inpatient endoscopy volume at 2 high-acuity hospitals within the same academic health system, one of which adopted a 2-physician GE hospitalist model in July 2019. We also performed a single interrupted time-series analysis of outpatient endoscopic volume of the practice employing GE hospitalists. Results: After implementation of the GE hospitalist model, weekly volume of inpatient endoscopic procedures increased by 10.9 (95% CI, .6-21.2; Conclusions: Our findings demonstrate that introduction of a GE hospitalist model increased inpatient and outpatient endoscopic volume in a large academic center.