Follow-Up Analyses
ADAS-Cog-13 scores improved from baseline to 12-month follow-up across all intervention arms. The improvements observed at postintervention remained during follow-up for arm 2 (exercise, cognitive training, and placebo vitamin D) and arm 3 (exercise, sham cognitive training, and vitamin D), but were slightly deteriorated in arm 1 (exercise, cognitive training, and vitamin D) and arm 4 (exercise, sham cognitive training, and placebo vitamin D), although none of the follow-up analyses were statistically significant (eTables 11 and 12, eFigures 1 and 2 in 