Table 2. Assumption-specific parameter symbols, definitions, baseline values, and sources.

Assumption-specific parameters and variables
Symbol	Definition	Estimate for each assumption				Source
		A	B	C	D
ε	ART initiation rate for ART-naives and for dropouts (year-1)	0.0651	0.0641	0.0614	0.0641	Fitted
ρ	Transmission probability per partnership with chronically infected ART-naive individuals with CD4 ≥ 350	0.0361	0.0356	0.0343	0.0359	Fitted (range: 0.012–0.145 [40])
τ	Relative disease progression rate for individuals on ART compared to ART-naive	0.1	0	0	0	[5, 12, 30]
ψ1	Rate of progression for individuals on ART from 350 ≤ CD4 < 500 to CD4 ≥ 500 (year-1)	0	0	0.550	0	[18]
ψ2	Rate of progression for individuals on ART from 200 ≤ CD4 < 350 to 350 ≤ CD4 < 500 (year-1)	0	0	0.408	0	[18]
ψ3	Rate of progression for individuals on ART from CD4 < 200 to 200 ≤ CD4 < 350 (year-1)	0	0	0.479	0	[18]
p	Proportion of individuals dropping out from A4 that move to D2	0	0	0	0.5	[13]
δ	Relative disease progression rate for ART dropouts compared to ART-naive individuals	1.0	1.0	1.0	2.0	[5, 12, 13]