Parameters used in uncertainty analysis.

1Current eligibility for adults and children is defined in countries’ official UNAIDS AIM files. Some countries have already expanded treatment eligibility according to or beyond the 2013 WHO guidelines, while others do not currently plan to expand treatment eligibility.2WHO 2013 eligibility for adults and children is based on a standardized and universal adoption of the 2013 WHO guidelines in 2014. Under this scenario, the following individuals are eligible for ART: adults and children older than 5 y with a CD4 T cell count of 500 cells/mm3 or below, children under 5 y (regardless of CD4 count), pregnant women living with HIV, and those co-infected with HIV and tuberculosis.3CAGR is the compound annual growth rate. This measures the average annual growth rate in coverage increases between an initial and final year.N/A, not applicable.Parameters used in uncertainty analysis.