• James W Davis, Ronald Y Fujimoto, Henry Chan, and Deborah T Juarez.
• Hawaii Medical Service Association, Honolulu, HI 96813, USA. james_davis@hmsa.com
• Manag Care. 2010 Oct 1; 19 (10): 38-44.

PurposeStudies worldwide in emergency departments (ED) find that a substantial proportion of patients seek care for non-urgent conditions. Managed care programs may help address this overuse of ED facilities, but non-urgent ED care is not easily identified outside of ED settings. This article employed an algorithm using insurance data to identify and characterize patients having low urgency ED visits. Non-urgentis the term used in the ED literature for ED visits that might have been managed outside an ED setting such as in a physician office. Low urgency ED visits could include visits that require an ED setting but for less severe conditions than high urgency ED visits.DesignAnalysis of ED visits by members of the largest health insurer in Hawaii.MethodologyVisits were defined as low urgency if classified by the ED as low severity and if, in addition, the patients required no procedures beyond physician and nursing care. A simple example would be a physician order for a laboratory test. Even if the test was routine, the fact the doctor ordered the test during the ED visit suggests the result might be needed right away to make a management decision. Another example of a procedure would be a radiograph.Principal FindingMedicaid participants, children age 1 to 5, and people living on less populated Hawaiian Islands most frequently had low urgency visits. The visits were also more common on weekends than weekdays, and more common among males compared to females. Of all low urgency visits by Medicaid participants, 32% were by repeat users of the ED. The percentage for members of non-Medicaid plans was 16%. People with one low urgency visit in the past year were more than twice as likely as others to have a similar visit in the next year. People with two or more low urgency visits in the past year were five times as likely to have a low urgency ED visit in the next year.ConclusionThe results identify several areas such as youth, island of residence, and past history of low urgency ED visits that might become the focus of managed care programs.

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