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PubMed1997

Progression of human immunodeficiency virus infection in patients with tuberculosis disease. A cohort study in Bordeaux, France, 1988-1994. The Groupe d'Epidémiologie Clinique du Sida en Aquitaine (GECSA).

To assess the role of Mycobacterium tuberculosis disease in human immunodeficiency virus (HIV) infection, the authors compared survival of tuberculosis patients and controls matched on year of HIV diagnosis and CD4+ lymphocyte count. Patients were selected in the Aquitaine Cohort, which follows, since 1985, all patients infected with HIV, aged more than 13 years, in five hospitals. Time of inclusion of controls was the date of diagnosis of tuberculosis for the corresponding tuberculosis patient. Patients who had received primary prophylaxis against mycobacteria other than tuberculosis were excluded. As of June 30, 1994, 104 tuberculosis patients and 620 controls were selected; they were similar, except for history of intravenous drug use (tuberculosis patients, 51%, vs. controls, 31%) and AIDS-defining opportunistic infection (40 vs. 29%). Survival was shorter in tuberculosis patients than in controls (risk ratio 1.5, 95% confidence interval 1.2-2.1) even after controlling for differences at entry. The risk of AIDS-defining opportunistic infection or a decrease to fewer than 50 CD4+ cells/mm3 was slightly but not statistically greater in tuberculosis patients than in controls. Tuberculosis disease affected survival but not occurrence of subsequent opportunistic infections or rate of CD4+ count decline. Tuberculosis may be a marker of advanced HIV and may accelerate its course of infection.

AIDS-Related Opportunistic Infections↗
PubMed1975

[Possibilities of a quality control in the diagnosis of tuberculosis (author's transl)].

A method is described which allows a quality control for demonstrating mycobacteria in the diangosis of tuberculosis. It does not test the differentiating procedures, but the manner of culturing and concentrating the bacteria by applying a statistical evaluation of serial experiments, thus allowing the statistically proven determination of the bacterial count. For this an evaluation method given by Cavalli-Storza was employed.

Bacteriological Techniques↗