Table 3.

Patterns of cognitive status observed based on the cognitive assessment tools used in the study

Criteria assessed	Subjective evidence of cognitive decline	Objective evidence of cognitive decline	Abnormal activities of daily living	Satisfies diagnostic criteria for dementia
Method of assessment	Positive history of cognitive decline from the patient or the bystander	An abnormal score in any of the domains of cognition in Malayalam version of Addenbrooke’s Cognitive Examination	An Everyday Abilities Scale for India score of more than 2	Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria
Patterns of cognition
A-Normal	Absent	Absent	Absent	Absent
B	Present	Absent	Absent	Absent
C	Absent	Present	Absent	Absent
D-Mild cognitive impairment	Present	Present	Absent	Absent
E	Present	Present	Present	Absent
F- Dementia	Present	Present	Present	Present