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The risk of active tuberculosis is still a concern in patients receiving biologics. To determine the risk of latent tuberculosis infection (LTBI) reactivation by Quantiferon-TB Gold (QFT) assay in psoriatic patients treated with biologics in 11 years' follow-up, along with chest radiography alterations. This retrospective study included 279 patients with plaque-type and/or pustular, or nail psoriasis who were treated with biologics, and had results for ≥2 LTBI tests. The QFT outcomes were defined according to the baseline and the follow-