Baseline retinopathy also predicted a greater change in MMSE and DSST scores at 40 months in each retinopathy category ( MMSE : -0.20 , -0.57 , and -0.42 , respectively [ P = 0.04 ] ; DSST : -1.30 , -1.84 , and -2.89 , respectively [ P = 0.01 ] ) .