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Socio-economic-and sex-related disparities in rates of hospital admission among patients with HIV infection in Ontario: a population-based study

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Background — Among people living with HIV infection in the era of combination antiretroviral therapy (cART), admission to hospital may indicate inadequate community-based care. As such, population-based assessments of the utilization of inpatient services represent a necessary component of evaluating the quality of HIV-related care.

Methods — The researchers used a validated algorithm to search Ontario’s administrative healthcare databases for all persons living with HIV infection aged 18 years or older between 1992/93 and 2008/09. The resarchers then conducted a population-based study using time-series and longitudinal analyses to first quantify the immediate effect of cART on hospital admission rates and then analyze recent trends (for 2002/03 to 2008/09) in rates of total and HIV-related admissions.

Results — The introduction of cART in 1996/97 was associated with more pronounced reductions in the rate of hospital admissions among men than among women (for total admissions, –89.9 v. –60.5 per 1000 persons living with HIV infection, p = 0.003; for HIV-related admissions, –56.9 v. –36.3 per 1000 persons living with HIV infection, p < 0.001). Between 2002/03 and 2008/09, higher rates of total hospital admissions were associated with female sex (adjusted relative rate [RR] 1.15, 95% confidence interval [CI] 1.05–1.27) and low socio-economic status (adjusted RR 1.21, 95% CI 1.14–1.29). Higher rates of HIV-related hospital admission were associated with low socio-economic status (adjusted RR 1.30, 95% CI 1.17–1.45). Recent immigrants had lower rates of both total admissions (adjusted RR 0.70, 95% CI 0.61–0.80) and HIV-related admissions (adjusted RR 0.77, 95% CI 0.61–0.96).

Interpretation — The researchers observed important socio-economic- and sex-related disparities in rates of hospital admission among people with HIV living in Ontario, Canada.

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Citation

Antoniou T, Zagorski B, Loutfy MR, Strike C, Glazier RH.Open Med. 2012; 6(4):e146-54. Epub 2012 Nov 27.

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