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Outcome and reinfection after Staphylococcus aureus bacteraemia in individuals with and without HIV-1 infection: a case-control study.


ABSTRACT: Individuals infected with HIV-1 are at an increased risk of Staphylococcus aureus bacteraemia (SAB). The aim of this study was to investigate mortality rate and risk of reinfection associated with SAB in HIV-1-infected individuals compared to individuals without HIV-1 infection.University hospital treating a third of the estimated 5000 individuals with HIV infection in Denmark.HIV-1-infected (n=82) and sex-matched and age-matched uninfected (n=163) individuals with SAB in the time period 1 January 1995 to 31 December 2010.30-day and 365-day mortality rate ratio and relative risk of reinfection.Individuals with HIV had an increased risk of death at day 30 (OR 11.90 (95% CI 2.15 to 65.85)) compared to individuals without HIV. Other factors associated with mortality were age, a foreign device and Pitt score. HIV-related factors did not associate to mortality. During follow-up, there were 43 episodes of reinfection; in individuals with HIV infection at an incidence rate of 7.8 (95% CI 4.7 to 10.9)/100 person-years compared with 2.2 (95% CI 1.2 to 3.2)/100 person-years for individuals without HIV. In multivariate analysis, HIV status (OR 2.91 (95% CI 1.29 to 6.58) and injection drug use (OR 3.51 (95% CI 1.06 to 11.63) were independently associated with an increased risk of reinfection.HIV-1 infection is associated with an increased risk of 30-day mortality after SAB and a very high rate of reinfection. Age, a foreign device and Pitt score predicted outcome. For patients infected with HIV, neither CD4 T-lymphocyte counts nor plasma HIV RNA levels were associated with 30-day outcome.The study was approved by the Danish Data Protection Agency (record no. 2007-41-1196).

SUBMITTER: Stammler Jaliff B 

PROVIDER: S-EPMC4010819 | biostudies-other | 2014

REPOSITORIES: biostudies-other

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Outcome and reinfection after Staphylococcus aureus bacteraemia in individuals with and without HIV-1 infection: a case-control study.

Stammler Jaliff Bianca B   Dahl-Knudsen Jenny J   Petersen Andreas A   Skov Robert R   Benfield Thomas T  

BMJ open 20140423 4


<h4>Objectives</h4>Individuals infected with HIV-1 are at an increased risk of Staphylococcus aureus bacteraemia (SAB). The aim of this study was to investigate mortality rate and risk of reinfection associated with SAB in HIV-1-infected individuals compared to individuals without HIV-1 infection.<h4>Setting</h4>University hospital treating a third of the estimated 5000 individuals with HIV infection in Denmark.<h4>Participants</h4>HIV-1-infected (n=82) and sex-matched and age-matched uninfected  ...[more]

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