| http://www.w3.org/ns/prov#value | - d transfusion prior to 1992 (22.3 vs 11.1%) were both significantly more common in HCV-positive patients than HCV-negative patients, as expected.However, the authors also found that having had at least one tattoo was associated with a 3.7-fold increase in the odds of HCV infection, after adjusting for confounders, such as injection drug use, blood transfusion history, ethnicity, income, reported s
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