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Frequency and longitudinal clinical outcomes of Alzheimer's AT(N) biomarker profiles: A longitudinal study
Author(s) -
Yu JinTai,
Li JieQiong,
Suckling John,
Feng Lei,
Pan An,
Wang YanJiang,
Song Bo,
Zhu ShanLiang,
Li DeHu,
Wang HuiFu,
Tan ChenChen,
Dong Qiang,
Tan Lan,
Mok Vincent,
Aisen Paul S.,
Weiner Michael M.
Publication year - 2019
Publication title -
alzheimer's and dementia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.713
H-Index - 118
eISSN - 1552-5279
pISSN - 1552-5260
DOI - 10.1016/j.jalz.2019.05.006
Subject(s) - biomarker , longitudinal study , medicine , alzheimer's disease , gerontology , psychology , oncology , biology , disease , pathology , genetics
We aimed to estimate the frequency of each AT(N) (β‐amyloid deposition [A], pathologic tau [T], and neurodegeneration [N]) profile in different clinical diagnosis groups and to describe the longitudinal change in clinical outcomes of individuals in each group. Methods Longitudinal change in clinical outcomes and conversion risk of AT(N) profiles are assessed using linear mixed‐effects models and multivariate Cox proportional‐hazard models, respectively. Results Participants with A+T+N+ showed faster clinical progression than those with A−T−N− and A+T±N−. Compared with A−T−N−, participants with A+T+N± had an increased risk of conversion from cognitively normal (CN) to incident prodromal stage of Alzheimer's disease (AD), and from MCI to AD dementia. A+T+N+ showed an increased conversion risk when compared with A+T±N−. Discussion The 2018 research framework may provide prognostic information of clinical change and progression. It may also be useful for targeted recruitment of participants with AD into clinical trials.