[Time-related incidence of AIDS--epidemiological developments in various groups with increased risk of HIV infection]

It is no longer possible to depict the number of AIDS cases over time as an exponential curve. In the group of homosexual/bisexual men, who still account for nearly 70% of all cases, the increase in the logistic model has reached a maximum (turning point of the logistic function). Nevertheless, in this group increasing numbers of cases are still to be expected. In the case of injecting drug users no such turning point can yet be detected with sufficient statistical accuracy.