Table 5.

NAC exposure TFS Risk^a at increasing ANA titers

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

Abbreviations: NAC N-acetylcysteine, TFS transplant-free survival, ANA anti-nuclear antibody

^aAdjusted for diagnosis, immunosuppressant exposure, anti-fibrotic exposure and GAP score