Fig. 2From: Subcutaneous administration, higher age and lower renal function are associated with erythrocyte methotrexate accumulation in Crohn’s disease: a cross-sectional studyLinear regression of [A] MTX-PG(4,5) concentration versus age [B] MTX-PG(4,5) concentration versus eGFR [C] MTX-PG5 concentration versus erythrocyte folate concentration. β[A] = 0.78 (p = 0.0002), β[B] = − 0.58 (p = 0.01), β[C] = 0.68 (p = 0.01). Results of individuals patients are displayed as a scatter plot, with orange dots for oral MTX users and green dots for subcutaneous MTX usersBack to article page