Table 2.

ICC for test–retest reliability, based on linear mixed effect models

	SRT total immediate recall		SRT delayed recall		UPSIT
Covariates	B (SE)	ICC	B (SE)	ICC	B (SE)	ICC
None	—	0.58	—	0.67	—	0.59
Time	−0.37 (0.23)	0.59	−0.06 (0.05)	0.67	−0.90 (0.17)	0.67
Time	−0.36 (0.23)	0.52	−0.05 (0.05)	0.61	−0.89 (0.17)****	0.65
Baseline age	−0.54 (0.14)***		−0.12 (0.03)***		−0.23 (0.12)+
Male vs. female	−4.30 (1.33)**		−1.10 (.03)***		−2.59 (1.15)*
Time	−0.35 (0.23)	0.49	−0.05 (0.05)	0.59	−0.89 (0.17)****	0.65
Baseline age	−0.46 (0.13)**		−0.10 (0.03)**		−0.22 (0.12)+
Male vs. female	−4.77 (1.29)***		−1.19 (0.31)***		−2.66 (1.16)*
Education	0.47 (0.16)**		0.09 (0.04)*		0.07 (0.15)
Time	−0.35 (0.23)	0.47	−0.05 (0.05)	0.58	−0.89 (0.17)****	0.65
Baseline age	−0.44 (0.13)**		−0.10 (0.03)**		−0.23 (0.12)+
Male vs. female	−4.12 (1.26)**		−1.07 (0.30)***		−2.58 (1.15)*
Spanish vs. English	−4.97 (1.49)**		−0.95 (0.36)**		−0.33 (1.36)

B, estimated coefficient of covariate; SE, standard error.

⁺0.05 < P < 0.07, *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001.