MAPT and Alzheimer disease: Further support for the association between balance and amyloid pathology can be seen through studies of falls, where a very large proportion of cognitively normal hip fracture patients had abnormal Aβ42/Aβ40, P-tau, and T-tau levels (Oh et al., 2018), and Aβ42 was associated with shorter time to first fall in older adults with preclinical AD (Stark et al., 2013).