Fig. 2.

Cumulative incidence of persistent transaminitis grouped by predictive factors

Using the CIF, the cumulative incidence of persistent transaminitis occurring in RA patients who initially started MTX treatment are shown grouped according to predictive factors for persistent transaminitis. Predictive factors included (A) the pre-existence of fat deposition (L/S ratio <1.3) and (B) obesity (BMI ≥25 kg/m²). Numbers below these figures represent the number of patients remaining on MTX treatment. Provability of survival without persistent transaminitis between the groups with and without predictive factors was compared using Gray’s test. CIF: cumulative incidence function; L/S ratio: liver-to-spleen attenuation ratio.