Impact of tuberculosis on the new AIDS definition in Barcelona [corrected].

The impact of the new AIDS definition on tuberculosis in Barcelona is evaluated. In 1988 active epidemiological surveillance demonstrated a tuberculosis incidence rate of 58.31/100,000 and an AIDS incidence rate of 9.93/100,000 according to the old definition, and 14.16/100,000 according to the CDCs' new definition (42.5% increase). The majority of these new cases are HIV-positive drug abusers with extrapulmonary tuberculosis. Pulmonary or extra-pulmonary tuberculosis is also observed more frequently in drug abusers than in homosexuals (odds ratio = 7.4; CL 95%; 3.5-15.5). Up until 1986, 39% of AIDS cases were homosexuals and 36% drug abusers. In 1988, according to the old AIDS definition, 54.2% of AIDS cases were drug abusers and 31.9% were male homosexuals but with the new definition it is even more striking that the high risk group is still drug abusers. Today we must add to the old social problem of tuberculosis the problem of drug abusers, and all the difficulties of compliance with chemotherapy or antituberculous chemoprophylaxis. New strategies will have to be devised to deal with this new problem.