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J Emerg Med. 2012 Aug;43(2):236-43. doi: 10.1016/j.jemermed.2011.05.020. Epub 2011 Jun 29.

Emergency department utilization among a cohort of HIV-positive injecting drug users in a Canadian setting.

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1
British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, Vancouver, British Columbia, Canada.

Abstract

BACKGROUND:

Human immunodeficiency virus (HIV)-positive injection drug users (IDUs) are known to be at risk for multiple medical problems that may necessitate emergency department (ED) use; however, the relative contribution of HIV disease vs. injection-related complications has not been well described.

OBJECTIVES:

We examined factors associated with ED use among a prospective cohort of HIV-positive IDUs in a Canadian setting.

METHODS:

We enrolled HIV-positive IDUs into a community-recruited prospective cohort study. We modeled factors associated with the time to first ED visit using Cox regression to determine factors independently associated with ED use. In sub-analyses, we examined ED diagnoses and subsequent hospital admission rates.

RESULTS:

Between December 5, 2005 and April 30, 2008, 428 HIV-positive IDUs were enrolled, among whom the cumulative incidence of ED use was 63.7% (95% confidence interval [CI] 59.1-68.3%) at 12 months after enrollment. Factors independently associated with time to first ED visit included: unstable housing (hazard ratio [HR] 1.5; 95% CI 1.1-2.0) and reporting being unable to obtain needed health care services (HR 2.2; 95% CI 1.2-4.1), whereas CD4 count and viral load were non-significant. Skin and soft tissue infections accounted for the greatest proportion of ED visits (17%). Of the 2461 visits to the ED, 419 (17%) were admitted to the hospital.

CONCLUSIONS:

High rates of ED use were observed among HIV-positive IDUs, a behavior that was predicted by unstable housing and limited access to primary care. Factors other than HIV infection seem to be driving ED use among this population in the post-highly active antiretroviral therapy era.

PMID:
21719229
PMCID:
PMC3189422
DOI:
10.1016/j.jemermed.2011.05.020
[Indexed for MEDLINE]
Free PMC Article
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