San Francisco Men's Health Study, 1984-1993

The San Francisco Men's Health Study (SFMHS) was a prospective epidemiological study designed to learn more about the natural history of Acquired Immune Deficiency Syndrome (AIDS).

Work on the project began in September, 1983, when the contract was signed. The first year was devoted to the design of the project and the first wave of interviews. The study plan called for re-interviewing participants multiple times at six-month intervals. Data collection for Wave 1 was carried out from May 1984 until April 1985. Data collection for the final wave, Wave 16, was carried out from October 1992 until May 1993. In addition to the 16 principal waves, the study included a number of small partial data collections (called "half waves") such as Wave 3B, Wave 4B, and so on. These are not full waves for the entire cohort, rather they were an opportunity for the investigators to ask a few additional questions of a few of the participants in between the main data collection waves. (Note that the only real divided wave was Wave 15, which was divided into two parts -- Wave 15A and Wave 15B. Each of those parts was directed at a distinct segment of the cohort.) In addition to the waves and "half waves," there were several sub-studies based on the cohort of subjects in the study. Some of these were self-administered questionnaires handed out to the subjects during one or more of the waves. Others were additional lab tests or clinic observations. Finally, there is a Follow-Up data file for the SFMHS. This file reports the survival status of each participant as of the end of the study in August of 1993. Note, however, that surveillance continued for HIV-positive men from 1994 to 2002 as part of the United Men's Health Study and other subsequent studies.