Abstract
3 Background: The number of cancer survivors in the US surpassed 13 million in 2012. In response to rising costs or care and greater demand for services, recent national reports and policies promote cancer care coordination to reduce costly and potentially avoidable services such as Emergency Department (ED) visits. Such efforts must be informed by reliable estimates and improved understanding of ED use and costs among oncology patients. This study quantifies the extent to which cancer survivors use the ED compared to individuals with other chronic conditions and estimates related annual expenses. Methods: Data from the 2008-2011 Medical Expenditure Panel Survey (MEPS) and survey-weighted regression models were used to determine the odds of any ED use (logistic), counts of ED visits (negative binomial) and mean annual medical expenditures attributed to ED use (generalized linear models) in three groups of respondents: cancer survivors, those with chronic conditions other than cancer, and those with neither (reference group). All models were adjusted for important confounding variables (age, sex, race/ethnicity, education, health insurance and health status). Estimates are generalizable to US non-institutionalized populations. Results: Among individuals with cancer, other chronic conditions, and neither condition, 17%, 15% and 9% visited the ED, respectively. Mean annual expenditures attributed to ED use among those with visits were $1471 (95% CI: $1262-$1678), $1517 (95% CI:$1395-$1640) and $1106 (95% CI: $984-$1228). Cancer survivors and individuals with other chronic conditions consistently had significantly higher ED use and costs than did the reference group. The likelihood of having any ED visit was similar between cancer survivors and those with other conditions, however cancer survivors incurred more visits (IRR: 1.17; 95% CI: 1.01, 1.36). Conclusions: ED use and expenditures are substantial among cancer survivors and equal or exceed the same outcomes in individuals with other chronic conditions. Future research is recommended to explore specific areas of unmet health need that may be driving increased frequency of ED visits in the growing population of cancer survivors.