1. An estimated 10,706 AIDS cases diagnosed in 2006 were associated with injection drug use. Approximately 84% of AIDS cases associated with injection drug use were in persons who inject drugs.
Approximately 16% of AIDS cases associated with injection drug use were heterosexual sex partners of an injection drug user (IDU).
A very small proportion (<1%) of AIDS cases associated with injection drug use were in perinatally infected children whose mothers were IDUs or sex partners of an IDU.
The data have been adjusted for reporting delays and cases without risk factor information were proportionally redistributed.