Reliability of the assessment of the clinical dementia rating scale from the analysis of medical records in comparison with the reference method

Table 1 Characteristics of the patients’ sample

n = 139	n (%) or mean ± SD
Age (years)	80.14 ± 6.20
Gender
Woman	81 (58.3)
Man	58 (41.7)
Education
Primary	48 (34.5)
Secondary	61 (43.9)
Tertiary	30 (21.6)
Current living situation
At home	127 (91.4)
Others	12 (8.6)
Clinical diagnosis stage
Dementia	100 (71.9)
Mild Cognitive Impairment	33 (23.7)
Subjective Cognitive Decline	6 (4.3)
Etiology
Alzheimer’s disease*	121 (87)
Others†	18 (12.9)
MMSE (score/30)	20.68 ± 4.45
IADL (score/8) (n = 133)	4.20 ± 2.06
DAD6 (score/18) (n = 124)	7.49 ± 5.45
NPI (score/144) (n = 126)	17.27 ± 15.53
Mini-Zarit (score/7) (n = 129)	2.75 ± 1.57

*18 AD cases were confirmed by cerebrospinal fluid biomarkers, the others 103 cases were clinical probable AD (no lumbar puncture). † For the others participants, the etiologies were anxiety disorders (n = 2), depressive disorders (n = 2), vascular cognitive disorders (n = 4), fronto-temporal dementia (n = 1), cerebral amyloid angiopathy (n = 1), other mental disorders (n = 1) or still not determinate at the time of the evaluation (n = 7)
MMSE: Mini-Mental State Examination; IADL: Instrumental Activities of Daily Living; DAD6: 6-item Disability Assessment for Dementia; NPI: Neuropsychiatric Inventory

ISSN: 1758-9193