Early integration of outpatient palliative care among adults with advanced cancer in a safety-net health system.

195 Background: Medically underserved adults with cancer present at later disease stages. The American Society of Clinical Oncology recommends all advanced cancer patients receive early intervention by a palliative care (PC) team soon after diagnosis (within 8 weeks) and during active treatment. Few studies have examined early integration of PC in the outpatient setting among advanced cancer patients within a safety-net system. This study examined patterns of outpatient PC service delivery (referrals and visits) for advanced cancer patients seen in the primary safety-net provider of cancer care for under- and uninsured adults in Dallas, TX. Methods: Patients diagnosed with advanced-stage solid tumor and who had at least one outpatient oncology visit January 1, 2018 to July 31, 2023 at the safety-net system were identified via electronic health record. The primary outcome was timeliness of outpatient PC referral (categorical outcome). Among patients with an outpatient PC referral, we used Kruskal-Wallis to test univariate associations across key characteristics, including age, race/ethnicity, cancer site, preferred language, insurance, and diagnosis year. Further, we used multivariate logistic regression to evaluate associations between key characteristics and completed PC visits among those with any outpatient PC referral. Results: Among 1,572 eligible patients (mean age 59, range: 21-94), 44% were female and 76% were non-White. Diagnoses included lung (20%), gastrointestinal (17%), colorectal (14%), breast (9%), prostate (9%), head/neck (9%), pancreatic (8%), and gynecologic (6%) cancers. Over half (n=870, 55%) of patients received an outpatient PC referral during the study period. Of those with a referral, 486 (56%) patients were referred ≤ 8 weeks of diagnosis, 157 (18%) between 9 and 24 weeks, 105 (12%) between 25 and 52 weeks, and 122 (14%) > 52 weeks. Timeliness of referral varied according to race/ethnicity and cancer type (p 52 Weeks Cancer type (%) Colorectal 50 16 17 17 Lung 64 17 11 8 Pancreatic 64 19 8 9 Prostate 30 17 12 40 Race/ethnicity, (%) White 66 14 10 9 Black 54 22 12 12 Hispanic 52 17 13 18 Select cancer types shown where significant differences were found. *p<.05.