Study protocol for “In-vehicle sensors to detect changes in cognition of older drivers”

BMC Geriatrics

Table 3 Algorithmic diagnosis including Clinical Dementia Rating (CDR) scores and neuropsychological test-based diagnosis of normal, amnestic and non-amnestic Mild Cognitive Impairment (aMCI; naMCI) and early (eMCI) and late MCI (LMCI)

CDR Sum of Boxes	Neuropsychological Diagnosis (NpDx)
CDR Sum of Boxes	Normal	aMCI	naMCI	Dementia
0	Normal	PreMCI –NP	PreMCI-NP	Consensus Conference
0.5–2.0	PreMCI Clinical	eMCI	eMCI	Consensus Conference
2.5–4.0	PreMCI Clinical	eMCI	eMCI	LMCI
4.5+	Consensus Conference	Dementia	Dementia	Dementia

[Rule 1: CDR-sb score > 4.0 indicates dementia diagnosis (except when NpDx is Normal)]
[Rule 2: CDR-sb score of 2.5 to 4.0 indicates an LMCI diagnosis (except when NpDx is Normal)]
[Rule 3: CDR-sb score of 0.5 to 2.0 indicates an eMCI diagnosis (except when NpDx is Normal)]
[Rule 4: Pre-MCI is diagnosed when CDR-sb 0.5–4.0 and NpDx is normal, or CDR-sb = 0 and NpDx = aMCI or naMCI]
CDR-sb = CDR sum of boxes, aMCI = Amnestic MCI, naMCI = Non-amnestic MCI, LMCI = Late MCI, eMCI = Early MCI

ISSN: 1471-2318