. 2021 Apr 25;144(4):1089–1102. doi: 10.1093/brain/awab007

Table 2.

Pairwise similarity measures

mem ∼ Grey matter density: t-map similarity (eta²)
	ADC baseline	ADNI 1 baseline	ADNI2/GO
ADC	1	0.788	0.747
ADNI 1		1	0.816
ADNI2/GO			1
Δmem ∼ log-Jacobian atrophy: t-map similarity (eta²)
	ADC	ADNI 1	ADNI2/GO
ADC	1	0.932	0.872
ADNI 1		1	0.935
ADNI2/GO			1
mem ∼ Grey matter density: union cluster ROI similarity (Dice)

	ADC	ADNI 1	ADNI2/GO	Epelbaum et al. ¹⁵	Busovaca et al. ²⁷	Schwarz et al. ¹⁴

ADC	1	0.360	0.444	0.252	0.232	0.508
ADNI 1		1	0.610	0.605	0.449	0.381
ADNI2/GO			1	0.443	0.326	0.427
Δmem ∼ log-Jacobian atrophy: union cluster ROI similarity (Dice)

	ADC	ADNI 1	ADNI2/GO	Caballero et al. ²⁴

ADC	1	0.765	0.709	0.151
ADNI 1		1	0.830	0.204
ADNI2/GO			1	0.193

Pairwise eta² similarity measures for grey matter t-map associations to baseline episodic memory; pairwise eta² similarity measures for longitudinal tissue atrophy associations witd memory change; pairwise Dice score similarities for baseline combined (union) region of interest (ROI) models; and pairwise Dice similarities for longitudinal associations.