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Table 5 NAC exposure TFS Riska at increasing ANA titers

From: N-acetylcysteine exposure is associated with improved survival in anti-nuclear antibody seropositive patients with usual interstitial pneumonia

ANA Titer n HR p-value 95% CI
≥1:160 42 0.67 0.08 0.42–1.05
≥1:320 33 0.51 0.01 0.30–0.87
≥1:640 23 0.52 0.05 0.28–0.99
≥1:1280 14 0.4 0.04 0.16–0.97
  1. Abbreviations: NAC N-acetylcysteine, TFS transplant-free survival, ANA anti-nuclear antibody
  2. aAdjusted for diagnosis, immunosuppressant exposure, anti-fibrotic exposure and GAP score