A Study of the Factors Associated with Emergency Department Visits in Advanced Cancer Patients Receiving Palliative Care

Purpose: Several studies demonstrated that cancer patients visited the emergency department (ED) frequently. This indicates unmet needs and poor-quality palliative care. We aimed to investigate the factors that contribute to ED visits among patients with advanced cancer in order to identify strategies for reducing unnecessary ED visits among these patients.

Methods: A retrospective study was conducted between January and December, 2019. Eligible patients were previously enrolled in the comprehensive palliative care program prior to their ED visit. All patients older than 18 were included. Patients were excluded if they had died at the initial consultation, were referred to other programs at the initial consultation, or had an incomplete record. The trial ended when the patients died, were referred to other palliative programs, or the study ended. The time between the initial palliative consultation and study endpoints was categorized into three groups: 16 days, 16-100 days, and > 100 days, based on the literature review. To investigate the factors associated with ED visits, a logistic regression analysis was conducted. The variables with a P value < 0.15 from the univariate logistic regression analysis were included in the multiple logistic regression analysis.

Results: Among a total of 227 patients, 93 visited the ED and 134 did not. Mean age was 65.5 years. Most prevalent cancers were colorectal (18.5%), lung (16.3%), and hepatobiliary (11.9%). At the end, 146 patients died, 45 were alive, nine were referred to other programs, and 27 were lost to follow-up. In univariate logistic regression analysis, patients with > 100 days from palliative consultation (OR 0.23; 95%CI 0.08, 0.66; p-value 0.01) were less likely to attend the ED. In contrast, PPS 50-90% (OR 2.02; 95%CI 1.18, 3.47; p-value 0.01) increased the ED visits. In the multiple logistic regression analysis, these two factors remained associated with ED visits:> 100 days from the palliative consultation (OR 0.18; 95%CI 0.06, 0.55; p-value 0.01) and PPS 50-90% (OR 2.62; 95%CI 1.44, 4.79; p-value 0.01).

Conclusions: There was reduced ED utilization among cancer patients with > 100 days of palliative care. Patients having a lower PPS were associated with a lower risk of ED visits.