Skip to main content

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.