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

BMC Public Health

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

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]

* For the purposes of this analysis, ulcerative STIs include: syphilis, chancroid and herpes simplex virus-2.
† For the purposes of this analysis, non-ulcerative STIs include: gonorrhea and chlamydia.

ISSN: 1471-2458