Abstract
Prediction of survival in Tanzanian patients with extrapulmonary tuberculosis (TB). To evaluate the prognostic value of clinical and laboratory parameters on survival in human immunodeficiency virus (HIV) seropositive and HIV seronegative patients with extrapulmonary TB. Over an 8-month period 192 consecutive patients with extrapulmonary TB, admitted to a major referral centre in Tanzania, were enrolled in the study. Their symptoms, signs and PPD skin test were noted. Their sera were tested for HIV and analyzed for beta-2-microglobulin content. Univariate risk factors for 12 months' survival after the start of anti-TB chemotherapy were entered into a stepwise Cox regression model. Survival probabilities were estimated according to the number of risk factors. Of the 192 patients 126 (65%) were HIV-infected, and 29.7% had disseminated TB. Thirty-five patients, of whom 24 (68.6%) were HIV-positive, withdrew from the study immediately after hospital discharge. For survival analysis 157 patients remained. Within 12 months' follow-up after initiation of anti-TB therapy, the case fatality rate of the 102HHIV-infected patients was 22% and of the 55 HIV seronegative patients 2% (P < 0.001). In the HIV seropositive patients the following...Continue Reading
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