22. Hepatitis C Virus Prevalence, 1988-1994

So now, what about hepatitis C? These are numbers you have seen before, in terms of age specific prevalence, and now these numbers are almost a decade old, in terms of the ages; the actual numbers that are there, and the proportions, we don't think have changed, but this whole cohort has aged almost a decade. And we don't have good information on the number of new infections, other than that incidence data that I showed you, which are based on best estimates in these younger age groups. And so there are some relative data gaps, but we think this group is aging and the NHANES (National Health and Nutrition Examination Study) from which these were derived - those data are accruing. The NHANES is done a little differently now, but eventually we should have data to look at how this group has moved in terms of age, and if it is moving in the same way that we thought it would.