Background: Reports of poor outcomes among older adults with COVID-19 may have changed patient perceptions of Do-Not-Resuscitate (DNR) orders or caused providers to pressure older adults into accepting DNR orders to conserve resources. Objective: We determined early-DNR utilization during COVID-19 surges compared with nonsurge periods among nonsurgical adults ≥75 and its connection to hospital mortality. Methods: We conducted a retrospective cohort study among adults ≥75 years using the California Patient Discharge Database 2020. The primary outcome was early-DNR utilization. Control cohorts included nonsurgical adults <75 years in 2020 and nonsurgical adults ≥75 in 2019. Multiple causal inference methods were used to address measured and unmeasured confounding. Results: A total of 487,955 adults ≥75 years were identified, with 233,678 admitted during COVID-19 surges. Older adults admitted during surges had higher rates of early-DNR orders (30.1% vs. 29.4%, absolute risk differences = 0.7, 95% confidence interval [CI]: 0.5-1.0) even after adjusting for patient case-mix (adjusted odds ratio [aOR] = 1.02, 95% CI: 1.01-1.04). Patients with early-DNR orders experienced higher hospital mortality (15.5% vs. 4.8%, aOR = 3.96, 95% CI: 3.85-4.06). Difference-in-difference analyses demonstrated that adults <75 years in 2020 and adults ≥75 years in 2019 did not experience variation in early-DNR utilization. Conclusions: Older adults had slightly higher rates of early-DNR orders during COVID-19 surges compared with nonsurge periods. While the difference in early-DNR utilization was small, it was linked to higher odds of death. The increase in early-DNR use only during COVID-19 surges and only among older adults may reflect changes in patient preferences or increased pressure on older adults stemming from provider fears of rationing during COVID-19 surges.
Keywords: COVID-19; Crisis Standards of Care; DNR orders; ageism.