Financial hardship and healthcare utilization among older cancer survivors with comorbidities.

349 Background: Financial burden among older cancer survivors (65y+) is understudied, particularly with regard to how comorbidities may affect financial burden and healthcare utilization despite Medicare eligibility. We assessed the relationship between financial hardship (FH), healthcare utilization, and comorbidities among cancer survivors. Methods: The University of Alabama at Birmingham tumor registry was used to identify patients diagnosed at ≥65y with lymphoma, breast, colorectal, prostate, or lung cancer types and received curative-intent treatment from 2000 to 2019. Patients were surveyed on FH, healthcare utilization, and comorbid conditions. FH was defined as having answered ‘Yes’ to experiencing material, psychological, or behavioral hardship in the past year. Visits to a primary care physician (PCP), oncologist, non-oncology specialist, or emergency department (ED) in the past 2 years were self-reported. A modified Common Terminology Criteria for Adverse Events (CTCAE) grading system captured 45 self-reported comorbidities. A CTCAE of 3 or 4 was considered severe. Multivariable models were used to determine the differences in risk of any FH between severe vs. non-severe CTCAE and to determine differences in healthcare utilization. All models were adjusted for age at survey completion, years from diagnosis to survey, sex, race, income, stage, distance travelled to medical center. Results: Among the 759 survivors included, median age was 77 (IQR=73-82), a majority identified as White (82%), half were female (53%) and a third reported annual income of less than 20,000 (32%). Breast (33%) was the most common cancer type followed by prostate (26%), lung (17%), colorectal (15%), and lymph (9%). Moderate or Severe comorbidities were reported by 46% of participants. FH was most commonly associated with coronary heart disease (18-47%), chronic obstructive pulmonary disease (20-57%), and myocardial infarction (25-60%) across all cancer types. Overall, patients with severe comorbidities had a higher risk of any FH (RR, 1.50; 95%CI, 1.15, 1.97), ED visits (IRR, 2.20; 95%CI, 1.22, 3.95), specialists (IRR, 1.52; 95%CI, 1.25, 1.87), and PCP (IRR 1.15; 95%CI, 1.01, 1.30). Those with severe comorbidities and financial hardship had higher utilization of PCP (p < 0.003), but not other types of utilization. Conclusions: Older patients with severe comorbidities were at increased risk of financial hardship while also utilizing healthcare facilities at a higher rate than those with fewer comorbidities. While those with severe comorbidities and financial hardship utilized their PCP more often, they did not utilize all healthcare facilities more than those with fewer comorbidities. Financial burden and high healthcare utilization remain after entering into cancer survivorship but is exacerbated by additional comorbid conditions.