Background: Hospitalists have been practicing alongside oncologists to provide high quality care for hospitalized cancer patients. We examined the differences in hospital utilization and outcomes among solid tumor patients admitted to oncologist-led teams (OT) versus hospitalist-led teams (HT). Methods: We performed a retrospective cohort study of patients with solid tumors admitted to the OT or HT at Mount Sinai Hospital from July to December 2019. We excluded patients less than 18 years of age, primary hematologic malignancies, or admission to intensive care or surgical units. We used the Activity Measure for Post Acute Care (AMPAC) and Charlson Comorbidity Index as a measure of functional ability and illness severity, respectively. We performed bivariate and multivariate analyses comparing differences in length of stay, ICU transfers, palliative care consults, healthcare proxy (HCP) decision, new DNR decision, readmission within 30 days and inpatient mortality by type of admitting service (OT vs HT). Results: A total of 544 patients were identified; 61% (334) admitted to HT. There were significant differences according to race and cancer type (p= 0.001 for both). HT patients had more functional impairment (p<0.0001) and poorer prognosis (p=0.0002). In bivariate analysis, HT had significantly more ICU transfers (OT, 2% vs HT, 8%; p=0.008), new DNR decisions (OT, 7% vs HT, 16%; p=0.002), and inpatient mortality (OT, 4% vs HT, 9%; p=0.02) while OT had significantly more palliative care consults (OT, 45% vs HT, 20%; p<0.0001). Multivariate analysis (Table) demonstrates HT had significantly more new DNR decisions (odds ratio [OR]: 0.46, 95% confidence interval [CI]: 0.23-0.93) and OT had significantly more palliative care consults (OR: 4.01, 95% CI: 2.51-6.43). Conclusions: At our academic hospital, inpatient cancer care led by hospitalists is comparable to that of oncologists despite HT caring for more severely ill oncology patients. From a value perspective, hospitalists facilitating care for hospitalized cancer patients will allow oncologists to maximize ambulatory time and focus on active cancer treatment.

*Days, not OR