People who travel to be treated for HIV infection: keeping track for care management.

An HIV information exchange was established to provide district health authorities (DHAs) with current demographic and epidemiological data on residents infected with HIV. Reporters in each DHA in the Thames regions were asked to collect information about all HIV infected individuals treated within their districts during 1993. The information was collated at the PHLS AIDS Centre and summary tables were distributed to the DHAs involved describing their residents. We received reports of 7760 people infected with HIV and who were treated in the Thames regions in 1993. Thirty-five per cent were treated outside the region where they lived, 22% were treated within their region but outside their district of residence, and 43% were treated in the DHA where they lived. For 30 of the 38 DHAs the number of resident patients exceeded the number treated within the district. This exchange of information between DHA of treatment and DHA of residence showed that it is possible to provide summaries of current HIV case loads based on place of residence without compromising confidentiality. It also confirmed that many patients choose to be treated away from their area of residence.