Table 5.

Linear Regression models showing both the factors associated with higher total (variable) for overall dementia and by dementia subtype in 106 demented outpatients over 60 years old attended at the Neurology Department of Clínica Internacional in Lima, Peru.

Factors			Overall dementia patients (n=106)		Alzheimer’s dementia (n=44)		Frontotemporal dementia (n=18)		Vascular dementia (n=44)
			β Coefficient	p-value	β Coefficient	p-value	β Coefficient	p-value	β Coefficient	p-value
Dementia subtype	Alzheimer’s dementia		Ref.	Ref.	NA		NA		NA
	Frontotemporal dementia		0.43	<0.01	NA		NA		NA
	Vascular dementia		0.15	0.19	NA		NA		NA
Healthcare delivery system	Health provider		Ref.	Ref.	Ref.	Ref.	Ref.	Ref.	Ref.	Ref.
	“Family Health” program		–0.05	0.61	–0.04	0.84	0.07	0.70	0.05	0.84
	None		–0.21	0.06	–0.18	0.32	0.07	0.77	–0.19	0.44
Patients	Age (years)		<0.01	0.57	0.01	0.47			–<0.01	0.63
	Sex: female		–0.03	0.73	0.06	0.67			–0.23	0.20
	Education (years)		–<0.01	0.82	0.01	0.60			–0.05	0.14
	Clinical Dementia Rating (CDR)***		0.38	<0.01	–0.47	<0.01	0.06	0.75	0.40	<0.01
	Mini-mental State Examination		0.02	0.31	0.03	0.11	–0.03	0.75	–0.06	0.10
	Pfeffer Functional Activities Questionnaire		<0.01	0.80	–<0.01	0.68	–0.06	0.38	0.01	0.61
	Neuropsychiatric Inventory		<0.01	0.90	–<0.01	0.65	0.02	0.05	–<0.01	0.72
	Beck Depression Inventory		–0.02	0.13	–0.02	0.23			–0.01	0.55
	Disease evolution (months)		–0.01	0.17	–<0.01	0.67			–0.02	0.10
Primary caregivers	Age (years)		–0.02	<0.01	–0.04	<0.01			–0.02	0.02
	Education (years)								0.05	0.12
	Hired caregiver	No, family member	Ref.	Ref.	Ref.	Ref.	Ref.	Ref.	Ref.	Ref.
		Yes, hired caregiver	–0.17	0.27	–0.47	0.09	0.67	0.02	–0.26	0.34
	Adjusted R-squared		0.52		0.60		0.46		0.33

NA: Not -applicable ; Total variable costs refer to costs of management of dementia, excluding the costs of dementia diagnosis; Empty cells (data not showed) indicate that this group of variables was removed from the model (p-value ≥0.20).