A randomized controlled study has evaluated the effects of two treatments for mild cognitive impairment. Authors examined the efficacy of group-based cognitive intervention (GCI) and home-based cognitive intervention (HCI) in amnestic mild cognitive impairment (aMCI) and intervention effects on serum brain-derived neurotrophic factor (BDNF). Methods: In this randomized and rater-blinded trial, 293 patients with aMCI from 18 nationwide hospitals were randomized as follows: 96 to the GCI group, 98 to the HCI group and 99 to the control group.
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