Objective: To determine the price point at which an interferon-γ release assay (IGRA) is less costly than a tuberculin skin test (TST) for health care employee tuberculosis screening.
Methods: A multidecision-tree based cost model incorporating inputs gathered from time–motion studies and parallel testing by IGRA and TST was conducted in a subset of our employees.
Results: Administering a TST testing program costs $73.20 per person screened, $90.80 per new hire, and $63.42 per annual screen. Use of an IGRA for employee health testing is cost saving at an IGRA test cost of $54.83 or less per test and results in higher completion rates because of the elimination of the need for a second visit to interpret the TST.
Conclusions: Using an IGRA for employee health screening can be an institutional cost saving and results in higher compliance rates.