Impact of COVID-19 on referrals to outpatient palliative care for patients with advanced cancer in a safety-net health system.

Abstract

e24071 Background: Medically underserved adults with cancer experience challenges with access to care and tend to present at later disease stage. Amidst the complex needs of safety-net patients, the value of early palliative care (PC) services can go unrecognized. Few studies have examined PC referral patterns in the outpatient setting among advanced cancer patients within a safety-net system, and none has studied how or whether referrals have evolved since the most acute stages of the COVID-19 pandemic. This study examined PC referrals for cancer patients seen as outpatients in the urban safety-net primary provider of cancer care for uninsured individuals in Dallas, TX, and assessed changes from before to after the acute pandemic phase. Methods: We used tumor registry records linked to outpatient PC referral data from the safety-net health system’s electronic health record from January 1, 2018 to July 31, 2023. The primary outcome was a binary indicator for receipt of PC referral among patients diagnosed with advanced-stage solid tumor cancer. Using a multivariate logistic regression model, we evaluated whether our independent variable – a binary indicator for pre-pandemic (January 1, 2018 to February 28, 2020) and post-pandemic (March 1, 2020 to July 31, 2023) time periods – was associated with PC referrals. We included age, sex, race/ethnicity, cancer type, preferred language, and insurance as covariates. Results: Among 1,590 eligible patients (mean age 58.1, range: 21-94), 44% were female and 75% were non-White. Diagnoses included lung (20%), gastrointestinal (17%), colorectal (14%), breast (9%), prostate (9%), head/neck (9%), pancreatic (8%), gynecologic (6%), and other (8%) cancers. Across both time periods, a total of 785 (49%) of patients received a PC referral. Whereas 53% of the 754 patients in the pre-pandemic cohort received a PC referral, 46% of the 836 in the post-pandemic cohort received a referral. In the adjusted regression model, pre-pandemic patients were 1.26 times more likely to have a PC referral than post-pandemic patients (95% CI, 1.02-1.56). Referrals varied by cancer type across both time periods – compared to breast cancer patients, gynecologic cancer patients had lower odds of PC referral (aOR, 0.19; 95% CI, 0.10-0.36) and pancreatic cancer patients had higher odds of PC referral (aOR, 2.93; 95% CI, 1.71-5.00). Conclusions: Our analysis showed that referrals declined during the COVID-19 pandemic and revealed differing underlying patterns of PC referral along disease groups. Understanding pre-existing referral patterns and lasting practice changes post-pandemic can support clinicians to integrate PC and improve cancer outcomes. Findings can be used to develop interventions, such as clinical triggers, to improve PC delivery for underserved cancer patients.