alexa Rate of Immunological Failure and its Predictors among
ISSN 2155-6113

Journal of AIDS & Clinical Research
Open Access

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Research Article

Rate of Immunological Failure and its Predictors among Patients on Highly Active Antiretroviral Therapy at Debremarkos Hospital, Northwest Ethiopia: A Retrospective Follow up Study

Yayehirad Alemu Melsew1, Mamo Wubshet Terefe2, Gizachew Assefa Tessema3 and Tadesse Awoke Ayele4*

1Department of Biomedical Sciences, College of Medicine and Health Science, Mizan-Tepi University, MizanTeferi, Ethiopia

2Department of Environmental and Occupational Health Safety, Institute of Public Health, University of Gondar, Ethiopia

3Department of Reproductive Health, Institute of Public Health, University of Gondar, Ethiopia

4Department of Epidemiology and Biostatistics, Institute of Public Health, University of Gondar, Ethiopia

*Corresponding Author:
Tadesse Awoke Ayele
Department of Epidemiology and Biostatistics
Institute of Public Health
University of Gondar, Ethiopia
E-mail: [email protected]

Received Date: April 15, 2013; Accepted Date: May 28, 2013; Published Date: June 05, 2013

Citation: Melsew YA, Terefe MW, Tessema GA, Ayele TA (2013) Rate of Immunological Failure and its Predictors among Patients on Highly Active Antiretroviral Therapy at Debremarkos Hospital, Northwest Ethiopia: A Retrospective Follow up Study. J AIDS Clin Res 4:211. doi:10.4172/2155-6113.1000211

Copyright: © 2013 Melsew YA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: In a resource-limited setting, patients on antiretroviral treatment are monitored by using immunological and clinical assessment due to the inaccessibility of viral load monitoring. The aim of this study was to assess the rate and predictors of immunological failure among patients taking highly active antiretroviral treatment at Debremarkos hospital, Northwest Ethiopia.

Methods: Retrospective follow up study was conducted at Debremarkos hospital on 509 adults who had started antiretroviral treatment during the period between January 01, 2007 and April 01, 2008. Data were analyzed using SPSS version 20. Life table and Kaplan-Meier curve was used to estimate the cumulative probablities and median time for immunologic failure respectively. Cox proportional hazard model was fitted to compute hazard ratios with their 95% confidence intervals.

Result: The median follow up time was 36 months (Inter Quartile Range (IQR) = 12-49 months). 107 (21%) patients had developed immunological failure with a failure rate of 8 per 100 patient-years of follow up. Recurrent pneumonia infection (Adjusted Hazards Ratio (AHR)=1.62, 95% CI: 1.10, 2.40), unemployment (AHR: 1.74, 95% CI: 1.11, 2.74), inability to work due to health problem (AHR= 2.19, 95%CI: 1.20, 4.02), baseline CD4 count ≤ 100 cells/ mm3 (AHR: 2.16, 95% CI: 1.44, 3.25) and change in body weight (AHR: 4.34, 95% CI: 2.93, 3.23) were significant predictors of immunological failure.

Conclusion: The immunological failure rate was found to be high. Recurrent pneumonia infection, being unemployed, inability to work, baseline CD4count less than 100 cells/mm3 and decrease in body weight were predictors of immunological failure. Early initiation of highly active antiretroviral treatment, attempt to improve Socioeconomic status of patients, and counseling patients to have protein rich diets would prevent early immunologic failure.

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