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Point-of-care C-reactive protein and risk of early mortality among adults initiating antiretroviral therapy.

ABSTRACT: OBJECTIVES:In resource-limited settings, mortality in the initial months following antiretroviral therapy (ART) initiation remains unacceptably high. Novel tools to identify patients at highest risk of poor outcomes are needed. We evaluated whether elevated C-reactive protein (CRP) concentrations predict poor outcomes among people living with HIV (PLWH) initiating ART. METHODS:We enrolled and followed for 3-months consecutive PLWH with pre-ART CD4 T-cell counts 350 cells/?l or less initiating ART from two HIV clinics in Uganda. Pre-ART CRP concentrations were measured from capillary blood using a point-of-care (POC) assay. After excluding patients with prevalent tuberculosis - the leading cause of HIV death - we measured 3-month mortality rates using Kaplan-Meier curves, used Cox regression to compare differences in survival, and used logistic regression to compare differences in the odds of opportunistic infections, between patients with and without elevated POC CRP (?8?mg/l). RESULTS:Of 1293 patients included [median CD4 T-cell count 181 (interquartile range 82-278)], 23 (1.8%) died within 3 months, including 19 of 355 (5.4%) with elevated POC CRP and four of 938 (0.4%) with nonelevated POC CRP. Eighty-six (6.7%) patients were diagnosed with opportunistic infections, including 39 of 355 (11.0%) with elevated POC CRP and 47 of 938 (5.0%) with nonelevated POC CRP. Elevated POC CRP was associated with mortality (adjusted hazard ratio 10.87, 95% confidence interval 3.64-32.47) and opportunistic infection (adjusted odds ratio 1.95, 95% confidence interval 1.23-3.07). CONCLUSION:Among PLWH with advanced HIV, elevated pre-ART POC CRP concentrations are associated with early mortality and opportunistic infections. Pre-ART POC CRP testing may reduce mortality by identifying patients at high risk for poor outcomes.

SUBMITTER: Chaisson LH

PROVIDER: S-EPMC6423982 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Point-of-care C-reactive protein and risk of early mortality among adults initiating antiretroviral therapy.

Chaisson Lelia H LH Semitala Fred C FC Asege Lucy L Mwebe Sandra S Katende Jane J Nakaye Martha M Andama Alfred O AO Marquez Carina C Atuhumuza Elly E Kamya Moses M Cattamanchi Adithya A Yoon Christina C

AIDS (London, England) 20190401 5

<h4>Objectives</h4>In resource-limited settings, mortality in the initial months following antiretroviral therapy (ART) initiation remains unacceptably high. Novel tools to identify patients at highest risk of poor outcomes are needed. We evaluated whether elevated C-reactive protein (CRP) concentrations predict poor outcomes among people living with HIV (PLWH) initiating ART.<h4>Methods</h4>We enrolled and followed for 3-months consecutive PLWH with pre-ART CD4 T-cell counts 350 cells/μl or les ...[more]

PMID: 30649057

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Project description:BackgroundA decline in mortality rates during the first 12 months of antiretroviral therapy (ART) has been mainly linked to increased ART initiation at higher CD4 counts and at less advanced World Health Organization (WHO) clinical stages of HIV infection; however, the role of improved patient care has not been well studied. We estimated improvements in early mortality due to improved patient care.MethodsWe conducted a retrospective cohort study of HIV-infected individuals ages 18 and older who initiated ART at the Mengo HIV Counseling and Home Care Clinic between 2006 and 2016. We conducted a mediation analysis using generalized structural equation models with inverse odds ratio weighting to estimate the natural direct and indirect effects of ART initiation time on early mortality.FindingsAmong 6,847 patients, most were female (69%), with a median age of 32 (interquartile range [IQR] = 28-38), versus a median age of 38 (IQR = 32-45) for males. The median CD4 count at ART initiation increased from 142 cells/ul (95% confidence interval [CI] = 135-150) in 2006-2010 to 302 cells/ul (95% CI = 283-323) in 2015-2016 (p < 0·001). The number of patients at WHO clinical stages I/II increased from 52% in 2006-2010 to 78% in 2015-2016 (p < 0·001). Annual early mortality decreased from 8·8 deaths/100 person years (PYS) in 2006 to 2.5 deaths/100 pys in 2016 (p < 0·001). Mediation by CD4 counts and WHO clinical stages accounted for 54% of the total effect of ART initiation timing on early mortality. In comparison, 46% remained as the direct effect, reflecting the contribution of improved patient care.InterpretationImproved patient care practices should be promoted as a strategy for reducing early mortality after ART initiation, above and beyond the effects from ART initiation at higher CD4 counts and less advanced WHO clinical stage alone.FundingThis research was supported by the President's Emergency Plan for AIDS Relief (PEPFAR), the National Institute of Allergy and Infectious Diseases Division of Intramural Research, and the National Cancer Institute.

Dataset Information

Point-of-care C-reactive protein and risk of early mortality among adults initiating antiretroviral therapy.

Publications

Point-of-care C-reactive protein and risk of early mortality among adults initiating antiretroviral therapy.

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