Figure 3. Bayesian melding for estimating and projecting HIV prevalence (on the Y-axis) in urban areas of Haiti (A) based on antenatal clinic data only, and (B) based on antenatal clinic data and the 2006 DHS survey. The coloured lines with symbols show the raw antenatal clinic prevalence rates and the red diamond shows the DHS estimate. The light grey curves are a sample from the posterior distribution of the prevalence curve, and the red curve is the posterior mode. The broken lines show the year-specific 95% confidence intervals for prevalence.