Table 1

Costing for screening using the Leeds protocol

Leeds protocol (QFT first), 280 immigrants
Step 1: QFT
Unit costTotal cost
280 QFT£25.67£7187.60
6 patients had second QFT£25.67£154.02
Step 2: CXR if QFT positive (37%) + 1 patient with 2 indeterminate QFT
105 CXR£23.24£2440.20
Total cost for screening£9781.82
LTBI cases105
Cost per case LTBI identified£93.16
  • CXR, chest x ray; LTBI, latent tuberculosis infection; QFT, QuantiFERON-TB Gold.