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. Author manuscript; available in PMC: 2017 Jun 1.

Published in final edited form as: Lancet HIV. 2016 May 11;3(6):e275–e282. doi: 10.1016/S2352-3018(16)30009-1

Table 1. Key parameters used in model.

The parameters were based on the Home HTC study and other literature. For parameters with varying estimates, we chose values that best fit our data.

Model Parameter	Value [Range]	Reference
Duration of Disease
By CD4 Count
Acute	0·25 year [0·2, 0·25]	Johnson et al.¹⁶
>500 cells/µL	1·88 years	Celum et al., Baeten et al.^17,18
500 to 350 cells/µL	1·22 years	Celum et al., Baeten et al.^17,18
350 to 200 cells/µL	5·90 years	Celum et al., Baeten et al.^17,18
≤200 cells/µL	1·96 years (95% CI: 3·0–4·3 years)	Badri et al.¹⁹
By HIV Viral Load
Acute	0·25 year	Johnson et al.¹⁶
<1,000 copies/mL	3·13 years	Celum et al., Baeten et al.^17,18
1,000–10,000 copies/mL	1·99 years	Celum et al., Baeten et al.^17,18
10,000–50,000 copies/mL	4·40 years	Celum et al., Baeten et al.^17,18
>50,000 copies/mL	1·44 years	Estimated
Costs
Annual Home HTC with	HIV-positive: $28·06 per person	Smith et al.²⁰
Community Care Workers	HIV-negative: $8·22 per person	Smith et al.²⁰