Winje BA et al. - By using QFT in routine screening, further follow-up could be avoided in asylum seekers who would have been referred if based only on a positive TST (> 6 mm). The proportion of individuals referred will be the same whether QFT replaces TST or is used as a supplement to confirm a positive TST, but the number tested will vary greatly. All three screening approaches would identify the same proportion of asylum seekers with a positive QFT and/or a TST > 15 mm, but different groups will be missed.
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