HIV/AIDS in Vancouver, British Columbia: a growing epidemic

Table 1 Model parameters and data sources of subgroup population sizes and HIV prevalence data

Key parameters	Sources
Vancouver
population size	Statistics Canada [3]
MSM*
population size	Population surveys, capture-recapture estimates [11, 19]
HIV prevalence	Cohort and cross-sectional surveys [20–23]
IDU*
population size	Population surveys, capture-recapture estimates [11, 24]
HIV prevalence	Cohort and cross-sectional surveys [1, 25–29]
FSW*
population size	Peer-based discussions
HIV prevalence	Community-based studies of FSW [1, 25, 30]
General population*†
population size	Remaining population
HIV prevalence	Antenatal seroprevalence studies [31, 32]

*HIV prevalence estimates each included data from the Health Canada Inventory of HIV Prevalence Studies [33].
†The prevalence of pregnant women receiving antenatal testing was used to impute the estimate for the general population.
MSM, men who have sex with men; IDU, injection drug users; FSW, street-based female sex trade worker.

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