UTSW observational study of labs (n 14,199) changes w/ MTX use in 2,439 pts (13% RA, 11% PsO/PsA, 15% inflam arthritis) - found no difference in labs q3 vs q6 mos. No signif correlation betw monitoring intervals & changes in ALT, AST,WBC, HCT, MCV, PLT, FIB-4. Small https://t.co/gKwA7juexG