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Table 2 Behavioural parameters used in the GOALS model: Ranges and best fit values.

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

   Input Min Max Best fit Source
   Percent of men 15-49 that are sexually active 88.0 95.3 94.0 [39, 51]
   Percent of women 15-49 that are sexually active 74.8 95.5 91.0 [39, 51]
   Sexually active 15-19 as % of 15-49 54.2 76.8 67.0 [51]
MSM     
   Input Min Max Best fit Source
   Percent of men in risk group 0.0 15.0 3.2 [23, 39, 46]
   coital frequency (acts per year) 30 70 35.7 [13]
   number of partners per year 1 6 1.2 [39]
   Condom usage (percentage of acts) 24.3 55.6 53.6 [46]
High risk men     
   Input Min Max Best fit Source
   Percent of men in risk group 4.0 36.0 4.4 [39, 51]
   coital frequency (acts per year) 2 70 10.0 [13, 47]
   number of partners per year 2 89 2.5 [13]
   Condom usage (percentage of acts) 59.6 95.8 93.9 [7]
Medium risk men     
   Input Min Max Best fit Source
   Percent of men in risk group category 5.0 16.0 12.4 [13, 52]
   coital frequency (acts per year) 30 70 31.0 [13]
   number of partners per year 2 5 2.2
   Condom usage (percentage of acts) 7.5 36.6 19.2 [51]
Low risk men     
   Input Min Max Best fit Source
   Percent of men in risk group category * * * *
   coital frequency (acts per year) 30 70 38.9 [13]
   number of partners per year 1 2 1.1
   Condom usage (percentage of acts) 0.0 28.9 23.8 [51]
Partners per year Women (percentage of total female population aged 15-49 in risk group)     
   Input Min Max Best fit Source
   High risk (< 0.0%) 500 1200 559.5 [13, 52]
   Medium Risk (18.5%) 1 3 1.5
   Low risk (81.5%) 1 2 1.0
  1. *Determined as remainder of MSM, High and Medium risk groups
  2. † Number of partners per year for the low and medium risk groups provides the basis of stratification by which the risk group is defined.