Determining the influence of patient-perceived curability on advance care planning in patients with cancer.

Abstract

198 Background: Advance Care Planning (ACP) allows patients to express their wishes regarding medical interventions when they are no longer able to make decisions. We hypothesized that among cancer patients treated at the University of Alabama at Birmingham (UAB), those who perceived their disease to be incurable were more likely to have an ACP. Methods: This cross-sectional study utilized data from patient reported outcome (PRO) surveys administered at the UAB outpatient oncology clinic. PRO responses included Eastern Cooperative Oncology Group (ECOG) performance status, perceived curability, and ACP status. Clinical and demographic information abstracted from the electronic health record included sex, stage, disease progression, phase of care (treatment: diagnosis to 1 year; survivorship: 1 year to 6 months before death; end of life: 6 months prior to death), diagnosis date, race, and marital status. The association between perceived curability and ACP was evaluated using likelihood ratios (LR) and 95% confidence intervals (CI) from generalized linear models with a log link and Poisson distribution with robust variance estimates adjusting for sex, race, stage, phase of care, ECOG, and marital status. Results: We analyzed PRO responses from 818 patients with a variety of different cancers. The majority of patients were female (68%), white (74%), were married (61%), had an early stage (0/I/II/III) cancer with no progression (56%), and had an ECOG of 0 or 1 (74%). Gynecologic (30%) and hematologic (28%) were the most common malignancies. The majority of patients were in the treatment (46%) or survivorship (48%) phase of care. Most patients did not have an ACP (59%). The majority of patients believed that their cancer was curable (61%). In adjusted models, there was no difference in ACP status between those believing their cancer was curable versus incurable (LR: 0.97, CI: 0.77-1.23). Conclusions: The absence of difference in ACP with respect to perceived curability suggests that patients’ completion of ACP depends on other factors, which may be more patient-specific rather than disease-specific. Our data reinforce the importance of addressing ACP for all patients.