Cost estimates.

Costs given in US dollars. Values are from primary cost analysis except for sputum PCR, which was adjusted from [14]. Screening costs are applied to all individuals not currently being treated for active TB. Diagnostic costs are applied to those individuals who test positive and include only those additional tests and clinical evaluations not part of a given screening strategy's screening test. Further work-up costs to determine appropriate treatment (e.g., drug sensitivity testing) are included in treatment costs if they are not part of an earlier screening strategy. See Table S7 for further details.