


Modifiable risk factors were those the research team judged could be alleviated or addressed through hospital-based interventions. To this end, the JHU team began by conducting an environmental scan of the literature, which pointed to a host of medical problems and social factors as predicting high ED use.įrom the factors identified in the scan, the JHU team selected six “modifiable” factors associated with high ED use. More specifically, JHU researchers sought to develop and test a tool to identify frequent ED users whose needs could be addressed through hospital-based interventions. The ultimate goal of this study was to identify the factors that drive patients’ frequent ED use in order to better address their needs through ED-based interventions. This research brief summarizes findings from this study. In 2013, the Agency for Healthcare Research and Quality (AHRQ) funded an ACTION II field-based research project, led by a team from Johns Hopkins University (JHU), to learn more on the specific vulnerabilities of patients at highest risk of frequent ED use and how they might be addressed during their ED visit. Eliminating revisits and inappropriate ED use could reduce health care spending by as much as $32 billion each year. It has been estimated that ED care costs two to five times as much as the same treatment delivered by a primary care physician.

7-9 Since the ED is also an expensive place to receive care, ED revisits can be an important contributor to high health care costs. Nonurgent revisits are associated with overcrowding, unnecessary delays in care, dissatisfaction, and avoidable patient harm. Published studies estimate that between 4.5 percent and 8 percent of patients revisit the ED four or more times per year and account for 21 percent to 28 percent of all ED visits. 1 A sizable minority of patients returns to the ED frequently and accounts for a disproportionately large share of overall visits and costs. In 2014, more than 137 million ED visits took place in the United States. The emergency department (ED) is an important and frequently used care setting.
