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. Author manuscript; available in PMC: 2013 Sep 2.
Published in final edited form as: Arthritis Care Res (Hoboken). 2010 Mar;62(3):401–408. doi: 10.1002/acr.20107

Table 2.

Insurance coverage of non-users, occasional users, and frequent users of the ED.

ED utilization
(number of visits)

Variables None
(n=499)
1–2
(n=230)
≥3
(n=78)
p Value
  Have any type of coverage, % 98.8 99.6 100 0.402
  Employer based (including VA and Independent), % 77.1 65.1 49.3
  Medicare, % 19.9 28.8 29.3 <0.001
  Medicaid, % 3.0 6.1 21.3
  HMO, % 37.0 32.0 30.1 0.290