Survival of Tuberculosis Patients Treated Under Directly observed Treatment, Short Course in Addis Ababa, Ethiopia
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Date
2009-07
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Addis Abeba university
Abstract
The objective of this study is to estimate survival probabilities and identify the risk factors for
the death of tuberculosis patients in Addis Ababa during the treatment period. The data for this
study are obtained from TB patients registered during September 2007 to January 2008 under
DOTS at the Health Centers in Addis Ababa. The analytical methodologies used were the
Kaplan-Meier to estimate the survival time and Cox’s regression model was employed to
identify the covariates that have a statistical significant effect on the survival longevity of TB
patients. The estimation of the model parameters was done by partial maximum likelihood
procedures. From the Cox regression model the factors Age, Initial weight, Category, HIV and
interaction of Age by HIV were the risk factors for the death of TB patients. Furthermore it was
found that the survival probabilities of TB patients with low initial weight, older age and HIV
positive were low
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Keywords
Tuberculosis Patients Treated