“Months, not years”: Impact of clinical discussions of advanced cancer life-expectancy on patient illness understanding.
30 Background: Patients’ understanding of their illness often guides best practice, and this is no less true at the end of life. Data showing the influence of patients’ acknowledgment of prognostic discussions on the accuracy of patients’ illness understanding could inform the debate regarding how to engage in these difficult discussions. Methods: To evaluate the effects of recent and past oncologist-patient discussions about prognosis/life-expectancy (P/LE) on changes in advanced cancer patents’ illness understanding (acknowledgement of their illness as 1. terminal; 2. incurable; 3. advance staged; and 4. associated with an estimated life-expectancy in months, not years), 208 patients (with advanced lung or upper gastrointestinal cancers that progressed on 1 chemotherapy regimen, or advanced colorectal cancers that progressed on 2) from Coping with Cancer II, a prospective observational cohort study, were interviewed before and after a visit with their oncologists who discussed scan results regarding potential additional progression. Results: Median time between pre- and post-scan interviews was 38 days. Controlling for potential confounds (i.e., patients’ race) and adjusting for patients’ pre-scan illness understanding, patients who acknowledged ever having discussions of P/LE with their oncologists were more likely to recognize that their disease was incurable (Adjusted Odds Ratio [AOR] = 2.97, p = 0.009) than those who did not. Compared to patients who denied ever having a discussion of P/LE, those who reported having both recent and past discussions of P/LE were more likely to recognize that their disease was at an advanced stage (AOR = 4.88, p = 0.012), and those who reported having only recent discussions, or both recent and past discussions, of P/LE were more likely to estimate their life-expectancy in terms of months as opposed to years (AOR = 10.1, p = 0.050, and AOR = 17.5, p = 0.006, respectively). Conclusions: Advanced cancer patients who acknowledge having discussions of P/LE with their oncologists have a better understanding of the terminal nature of their illnesses as compared to those who do not, and thus may be better prepared to make informed end-of-life care decisions.