Table 3.

Association Between Physical Function and Plasma Alzheimer’s Disease Biomarkers Covarying for Medical Comorbidity

	Aβ 40	Aβ 42	Total Tau	NfL
TUG	(0.004, <0.001) [0.002, 0.006]	(0.041, 0.036) [0.003, 0.079]	(0.144, 0.033) [0.012, 0.276]	(0.018, 0.002) [0.006, 0.029]
SPPB	(−0.002, 0.005) [−0.004, −0.001]	(−0.045, 0.004) [−0.075, −0.015]	(−0.139, 0.009) [−0.243, 0.035]	(−0.019, <0.001) [−0.028, −0.010]

Notes: Aβ40 = plasma beta amyloid 40; Aβ42 = plasma beta amyloid 42; MMSE = Mini Mental State Examination; NfL = plasma neurofilament light; SPPB = Short Physical Performance Battery; total tau = plasma total tau. (β, p-value) [95% confidence interval]. Bold indicates a significant moderating effect between ethnicity and the biomarker. All p values <.05 are bolded.