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Table 2 Input parameters of the cost-effectiveness model

From: Cost-effectiveness of facility-based, stand-alone and mobile-based voluntary counseling and testing for HIV in Addis Ababa, Ethiopia

Input parameters Base value Low value High value SD Distribution Data sources
Cost of positive for facility-based VCT 158.82 127.06 190.59 10.00 Gama Primary
Cost of negative for facility-based VCT 4.95 3.96 5.94 0.49 Gama Primary
Cost of positive for stand-alone VCT 150.97 120.78 181.17 10.00 Gama Primary
Cost of negative for stand-alone VCT 6.39 5.11 7.67 0.64 Gama Primary
Cost of positive for mobile-based VCT 135.53 108.42 162.63 10.00 Gama Primary
Cost of negative for mobile-based VCT 3.28 2.63 3.9 0.32 Gama Primary
Probability of being tested at facility-based VCT 0.050 0.030 0.100 0.006 Beta Primary
Probability of being tested at stand-alone VCT 0.120 0.080 0.160 0.020 Beta Primary
Probability of being tested at mobile-based VCT 0.340 0.200 0.400 0.080 Beta Primary
Test sensitivity 0.997 0.993 1.000 0.001 Beta [42]
Test specificity 0.992 0.990 1.000 0.002 Beta [42]
HIV positivity rate: facility VCT 0.032 0.022 0.042 0.001 Beta Primary
HIV positivity rate: stand-alone VCT 0.043 0.033 0.053 0.001 Beta Primary
HIV positivity rate: mobile-based VCT 0.025 0.015 0.035 0.001 Beta Primary
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