Explainable semi-supervised deep learning shows that dementia is associated with small, avocado-shaped clocks with irregularly placed hands

Participants

Study materials were collected from digital clock drawing consortium data between the University of Florida (UF) and New Jersey Institute for Successful Aging (NJISA), Memory Assessment Program, School of Osteopathic Medicine, Rowan University. The Institutional Review Boards of the University of Florida and Rowan University approved the study. Study participants at both institutions gave their written approval to be included in the study through informed consent forms. All study procedures were carried out per the Declaration of Helsinki and respective university guidelines and TRIPOD criteria31. The study consisted of two data cohorts:

Training dataset included a set of 23,521 clock drawings from 11,762 participants aged ≥ 65 years, primary English speaking, who completed clock drawing to command and copy conditions as part of routine medical care assessment in a…

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