STOP HIV/AIDS cohort is a census of all identified human immunodeficiency virus (HIV)-positive individuals in the province of British Columbia, Canada. It was formed through the linkage of nine provincial treatment, surveillance, and administrative databases. This open cohort allows for bidirectional analyses from 1996 onward and is refreshed annually. Extensive data collection for cohort members includes demographic information, detailed clinical and laboratory data, complete prescription drug use including antiretroviral agents, and information on health service utilization encompassing inpatient and outpatient care, addictions treatment, and palliative care. A total of 12,349 unique individuals were included in the final baseline STOP HIV/AIDS cohort, capturing prevalent cases from 1 January 1996 to 31 March 2010. The median age at cohort entry was similar for both treated and untreated groups at 44 and 47 years, respectively, as was age at diagnosis.

Recruitment is ongoing