Plasma Aβ42/Aβ40 determined by mass spectrometry is associated with longitudinal changes in amyloid accumulation, brain atrophy, and conversion to mild cognitive impairment due to Alzheimer's disease in individuals with subjective cognitive decline: 5-year follow-up of the FACEHBI cohort.
However, MMSE and Memory Composite S-FNAME-Occupations showed a trend ( P = 0.072 and P = 0.101, respectively).
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