Province, Author & Population This column lists the province in which the study has been conducted, as well as the main author(s) for the study, the reference number in the References section, the population followed and the year(s) the study was conducted. [...] Prevalence, for the purposes of this inventory, is defined as the proportion of the studied population that has an existing HIV infection at the time of observation. [...] Incidence, for the purposes of this study, is the number of new HIV infections observed during a specified period of time in a specified population. [...] The other possible entry is cumulative incidence, which is the proportion of the total number of subjects, in a cohort study, that have seroconverted over the course of the study. [...] Results of the test can be linked to the person being tested by a code known only to the person.