Figure 2.

Kaplan-Meier analysis of contraction of Hepatitis C among HIV positive MSM, comparing IDU and non-IDU. IDU = injecting drug use. Cum Survival = Cumulative survival. Because the three IDU with the longest follow up became infected with HCV, the figure gives the impression that all IDU became infected when in fact only 16 of 39 acquired HCV infection

Gamage et al. BMC Infectious Diseases 2011 11:39   doi:10.1186/1471-2334-11-39
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