Browsing by Person "McCarthy, Kerrigan"

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Autopsy prevalence of tuberculosis and other potentially treatable infections among adults with advanced HIV enrolled in out-patient care in South Africa
(PLOS, 2016-11-09) Karat, Aaron S.; Omar, Tanvier; von Gottberg, Anne; Tlali, Mpho; Chihota, Violet N.; Churchyard, Gavin J.; Fielding, Katherine L.; Johnson, Suzanne; Martinson, Neil A.; McCarthy, Kerrigan; Wolter, Nicole; Wong, Emily B.; Charalambous, Salome; Grant, Alison D.; Cardona, Pere-Joan
Background Early mortality among HIV-positive adults starting antiretroviral therapy (ART) remains high in resource-limited settings, with tuberculosis (TB) the leading cause of death. However, current methods to estimate TB-related deaths are inadequate and most autopsy studies do not adequately represent those attending primary health clinics (PHCs). This study aimed to determine the autopsy prevalence of TB and other infections in adults enrolled at South African PHCs in the context of a pragmatic trial of empiric TB treatment (“TB Fast Track”).
Measuring mortality due to HIV-associated tuberculosis among adults in South Africa: Comparing verbal autopsy, minimally-invasive autopsy, and research data
(PLOS, 2017-03-23) Karat, Aaron S.; Tlali, Mpho; Fielding, Katherine L.; Charalambous, Salome; Chihota, Violet N.; Churchyard, Gavin J.; Hanifa, Yasmeen; Johnson, Suzanne; McCarthy, Kerrigan; Martinson, Neil A.; Omar, Tanvier; Kahn, Kathleen; Chandramohan, Daniel; Grant, Alison D.; Isaakidis, Petros
Background The World Health Organization (WHO) aims to reduce tuberculosis (TB) deaths by 95% by 2035; tracking progress requires accurate measurement of TB mortality. International Classification of Diseases (ICD) codes do not differentiate between HIV-associated TB and HIV more generally. Verbal autopsy (VA) is used to estimate cause of death (CoD) patterns but has mostly been validated against a suboptimal gold standard for HIV and TB. This study, conducted among HIV-positive adults, aimed to estimate the accuracy of VA in ascertaining TB and HIV CoD when compared to a reference standard derived from a variety of clinical sources including, in some, minimally-invasive autopsy (MIA).
Verbal autopsy-assigned causes of death among adults being investigated for TB in South Africa
(Oxford University Press, 2016-10-28) Maraba, Noriah; Karat, Aaron S.; McCarthy, Kerrigan; Churchyard, Gavin J.; Charalambous, Salome; Kahn, Kathleen; Grant, Alison D.; Chihota, Violet
Background: Adults being investigated for TB in South Africa experience high mortality, yet causes of death (CoD) are not well defined. We determined CoD in this population using verbal autopsy (VA), and compared HIV- and TB-associated CoD using physician-certified verbal autopsy (PCVA) and InterVA-4 software.