Table 2.

Ability of MRI methods to distinguish dementia from non-dementia (a) and from SCD (b).

	(a) Dementia versus non-dementia			(b) Dementia versus SCD
	AUC	95% CI	p	AUC	95% CI	p
BAG	0.678	0.608–0.748	< 0.001	0.780	0.703–0.856	< 0.001
Forebrain parenchyma/ICV	0.817	0.762–0.872	< 0.001	0.893	0.835–0.951	< 0.001
Hippocampi/ICV	0.833	0.780–0.886	< 0.001	0.890	0.834–0.946	< 0.001

SCD subjective cognitive decline, BAG brain age gap, ICV intracranial volume, AUC area under the receiver operating curve, CI confidence interval.

Significant values are in bold.