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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Math Biosci. 2016 Jan 14;273:102–113. doi: 10.1016/j.mbs.2016.01.003

Figure 2.

Figure 2

Results of calibration. A: Across the US, HIV prevalence in the IDU population remained relatively constant around 7% for the past decade [31, 32, 33]. We assumed this trend would carry into the next 10 years and defined a target interval of 5–10% HIV prevalence. After calibration, the projection of HIV prevalence simulated by our model (averaged over 100 runs) lies within the target interval. B: HCV prevalence in the IDU population in the US increased slightly in the past decade [34]; thus we assumed an increasing trend in the future and defined a target interval of 34–38% HCV prevalence. The simulated HCV prevalence (averaged over 100 runs) falls within the target interval.