Skip to main content

Table 3 Biological parameters used in the GOALS model: Ranges and best fit values.

From: Determining a cost effective intervention response to HIV/AIDS in Peru

MSM     
   Input Min Max Best fit Source
   HIV prevalence 0.0 21.97 7.5 [12, 24, 46]
   Prevalence of ulcerative STIs* 0.0 72.3 23.7 [23]
   Prevalence of non-ulcerative STIs† 0.0 6.3 5.2 [53]
   Percent of STI cases treated 84.1 87.1 85.3 [51]
High risk men     
   Input Min Max Best fit Source
   HIV prevalence 0.7 13.8 7.3 [54]
   Prevalence of ulcerative STIs* 0.02 29.9 10.4 [23, 54]
   Prevalence of non-ulcerative STIs† 0.7 6.2 5.8 [23]
   Percent of STI cases treated 84.1 87.1 85.8 [51]
Medium risk men     
   Input Min Max Best fit Source
   HIV prevalence 0.1 0.7 0.6 [54]
   Prevalence of ulcerative STIs* 1.0 15.2 6.8 [54]
   Prevalence of non-ulcerative STIs† 0.0 3.0 2.6 Assumption
   Percent of STI cases treated 84.1 87.1 84.3 [51]
   Condom usage     
Low risk men     
   Input Min Max Best fit Source
   HIV prevalence 0.1 0.6 0.6 [23, 54]
   Prevalence of ulcerative STIs* 0.8 7 3.3 [53]
   Prevalence of non-ulcerative STIs† 0.0 4.7 2.8 [39, 53]
   Percent of STI cases treated 84.1 87.1 86.0 [51]
Women     
   Input Min Max Best fit Source
   HIV prevalence - FSW 0.6 1.9 1.8 [12]
   HIV prevalence - Medium 0.1 1.9 0.5 Assumption
   HIV prevalence - Low 0.1 1.1 0.1 [12]
  1. * For the purposes of this analysis, ulcerative STIs include: syphilis, chancroid and herpes simplex virus-2.
  2. † For the purposes of this analysis, non-ulcerative STIs include: gonorrhea and chlamydia.