Behavioural and psychological symptoms in the older population without dementia - relationship with socio-demographics, health and cognition

Table 4 Factor structure representing the relationships between behavioural and psychological symptoms by cognitive classification.

MMSE groups	Factor 1	Factor 2	Factor 3	Factor 4
MMSE 18-21	mis/hal/wan/ela	apa/mis/anx/dep	per/irr
MMSE 22-25	mis/hal	apa/anx/dep	per/irr
MMSE 26-30	mis/hal	anx/dep/(apa)	per/wan/irr
MCI classification
Normal	mis/hal	anx/dep	per/wan/irr
MCI	mis/hal	apa/anx/dep/sle	per/wan/ela/irr
OCIND	mis/hal	apa/anx/dep	per/irr	wan/(ela)
MCI Subtypes
A-MCI	mis/hal	apa/anx/dep/sle	per/wan/ela/irr	agi/irr
N-MCI	mis/hal/anx/dep	apa/sle	per/irr	ela/agi
M-MCI	mis/hal/wan/ela	apa/anx/dep	irr/(per)
Dementia (adapted from Savva et al 2009 [4])	mis/hal/con/apa/per/wan	anx/dep/hal	irr/per/agi	agi/ela/hal/sle/wan

Symptoms are included in each factor if their factor loading is >0.3 (symptoms loading >0.25 but <0.3 are shown in brackets). Key to symptoms: mis = misidentification, hal = hallucinations, wan = wandering, ela = elation, apa = apathy, anx = anxiety, dep = depression, per = feeling of persecution, irr = irritability, agi = agitated behaviour, sle = sleep problems.