From: Subcutaneous administration, higher age and lower renal function are associated with erythrocyte methotrexate accumulation in Crohn’s disease: a cross-sectional study
All (n = 18)
Oral MTX (n = 7)
Subcutaneous MTX (n = 12)
MTX-PG1
103.5
42.3
114.0
MTX-PG2
27.2
23.2
29.8
MTX-PG3
49.8
31.0
44.0
MTX-PG4
77.7
45.2
50.7
MTX-PG5
77.0
17.3
50.9
MTX-PGtotal
55.1
30.9
50.0