Abstract
Toxoplasma gondii infection was one of the most frequent AIDS-defining conditions in HIV-infected individuals until the advent of combination antiretroviral therapy. We aimed to assess the clinical load, coinfection, and mortality, as well as time trends for people living with HIV and hospitalized with Toxoplasma gondii infection, in Spain from 1997 to 2015. Retrospective observational analysis using the Spanish National Registry of Hospital Discharges. Information was retrieved for the study period using the International Classification of Diseases, 9th revision. There were 66,451,094 hospital admissions in Spain from 1997 to 2015, including 472,269 (0.71%) in people living with HIV. Toxoplasma gondii infection was registered in 9006 of these (overall prevalence 1.91%), making it the fifth most common opportunistic infection in hospitalized HIV-positive patients. Prevalence of Toxoplasma gondii infection declined in this group from 4.2% in 1997 to 0.8% in 2015 (p < 0.001), while mean age increased, from 35 years in 1997 to 44 years in 2015. The overall in-hospital mortality rate declined from 13.5% in 1997 to 8.9% in 2015, and it was higher in the concomitant presence of bacterial pneumonia (28.9% vs. 10.2%, p < 0.001), cryptosporidiosis (26.9% vs. 11.5%; p = 0.03), cytomegalovirus disease (18.2% vs. 11.2%, p < 0.001), Pneumocystis jiroveci pneumonia (31.5% vs. 10.5%, p < 0.001), leukoencephalopathy (19.8% vs. 11.78% p < 0.001), and wasting syndrome (29.3% vs 10.9%; p < 0.001). Toxoplasma gondii infection prevalence has significantly declined among hospitalized HIV-infected patients in Spain during the last two decades, coinciding with the widespread use of combination antiretroviral therapy.
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J.M. Ramos-Rincon has full access to and is the guarantor for the data. The datasets generated are available from the corresponding author on reasonable request.
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Conceptualization: J.M.R.R., A.M.M. and G.G.A. Methodology: M.M.E, A.M.M., and G.G.A. Software: M.M.E and A.M.M. Formal analysis: A.M.M. and J.M.S. Investigation: M.M.E. Resources: M.M.E. and H.P.C. Data curation: M.M.E, A.M.M. and J.M.S. Writing—original draft preparation: J.M.R.R., A.M.M., M.M.E, and G.G.A. Writing—review and editing: M.M.E, A.M.M, J.M.S. I.B.R., G:G:A, and J.M.R.R.
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According to the Spanish law, approval by an ethics committee was not necessary for this study. To guarantee patients’ anonymity, the database was provided to us by the Spanish Ministry of Health after removal of all potential identifiers. In accordance with Spanish legislation, patients’ informed consent was not needed for this analysis.
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Menchi-Elanzi, M., Mayoral, A.M., Morales, J. et al. Toxoplasma gondii infection in hospitalized people living with HIV in Spain, 1997 to 2015. Parasitol Res 120, 755–761 (2021). https://doi.org/10.1007/s00436-020-07007-5
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DOI: https://doi.org/10.1007/s00436-020-07007-5