FGF21 and type 2 diabetes mellitus: After adjustment for the confounding variables described above, multiple stepwise regression analysis showed that the age (β = 0.519, P < 0.001), FGF21 (β = 0.208, P = 0.031), HbA1c (β = 0.225, P = 0.020) were independent risk factors for FIMT in type 2 diabetes women.