Table 3.

Spearman’s rank correlation coefficients between Timed Up-and-Go (TUG) test results and Alzheimer’s disease fluid biomarkers (N = 90)

TUG test result	Aβ42, ng/l	t-tau, ng/l	p-tau, ng/l
	r, p	r, p	r, p
TUG (s)	0.104, 0.340	0.017, 0.876	0.016, 0.885
TUGdt naming animals (s)	0.136, 0.211	0.086, 0.431	0.068, 0.534
TUGdt naming animals, cost (%)	0.084, 0.439	0.107, 0.323	0.076, 0.485
TUGdt naming animals correct words	–0.041, 0.708	–0.281, 0.008*	–0.267, 0.012*
TUGdt naming animals, correct words per 10 s	0.152, 0.229	–0.267, 0.012*	–0.249, 0.020*
TUGdt months backward† (s)	0.018, 0.872	0.130, 0.233	0.106, 0.334
TUGdt months backward†, cost (%)	–0.146, 0.182	0.141, 0.195	0.097, 0.374
TUGdt months backward†, correct words	0.006, 0.959	–0.123, 0.260	–0.157, 0.148
TUGdt months backward†, correct words per 10 s	0.023, 0.831	–0.164, 0.132	–0.187, 0.085

Adjusted for age, gender, and educational level. TUG, Timed Up-and-Go; TUGdt, Timed Up-and-Go dual-task; Aβ₄₂, amyloid-β 42; ng/l, nanogram per litre, t-tau, total tau; p-tau, phosphorylated tau; r, Spearman’s rho. ^*Significant, p < 0.05. ^†n = 89, one participant was unable to complete the TUGdt MB.