Chunk #9 — Methods — Measures

Source: Initiation to heroin injecting among heroin users in Sydney, Australia: cross sectional survey.
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Information on HCV status was collected via self-report. Self-reported HCV status has a concordance of approximately 80% for those who have been tested [27,28]. For the purposes of this study, self-reported HCV is relevant as risk behaviour is influenced by the belief about one's status, not actual status [29].