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Table 2 Analysis of costs of each screening strategy

From: Different screening strategies (single or dual) for the diagnosis of suspected latent tuberculosis: a cost effectiveness analysis

Cost Measures TST T-SPOT.TB QFT-GIT TST/T-SPOT.TB TST/QFT-GIT No screening
Treatment & follow-up costs £184,156 £148,983 £157,921 £127,402 £125,618 £57,148
Test costs £15,433 £55,000 £45,000 £34,986 £31,431 £0
Total costs £199,589 £203,983 £202,921 £162,387 £157,048 £57,148
Breakdown of costs associated with test inaccuracies       
Costs incurred on false positives £55,090 £0 £16,313 £0 £3,038 -
Costs incurred on false negatives £8,369 £3,682 £7,771 £11,371 £14,721 -
Costs incurred on TST non-returns £6,622 £0 £0 £6,622 £6,622 -
  1. All costs are expressed in British pounds (£). Costs relate to outcomes and costs for entire cohort of 1,000 contacts over the 2 year examination period. (TST - Tuberculin Skin Test, QFT-GIT - Quantiferon-TB Gold-In-Tube)