Economic and caregiver impact of Alzheimer’s disease across the disease spectrum: a cohort study

Table 3 Mean total cost/year after exclusion of costs ≥ 3 SD of the average total costs

Costs, €		1 year before	1 year after	2 years after
SCC	Mean	4460	5989	4749
	SE	314	353	332
	Median	1709	2451	1761
	SD	7637	8803	7424
	IQR	1991	3017	2754
MCI	Mean	5514	7272	6629
	SE	354	394	400
	Median	1979	3339	3074
	SD	8580	9728	8913
	IQR	2354	4277	4050
Mild AD dementia	Mean	6021	7336	7771
	SE	623	563	761
	Median	2323	4670	4796
	SD	8815	8045	9591
	IQR	2826	4542	4190
Moderate AD dementia	Mean	5320	7315	7741
	SE	499	561	681
	Median	1994	4085	3983
	SD	7715	8776	9631
	IQR	3464	5152	5790
Moderately severe/severe AD dementia	Mean	6148	7834	8303
	SE	529	638	724
	Median	2160	3909	4453
	SD	8316	10141	9880
	IQR	3891	5907	7425
P value*		0.002	0.006	<0.0001
P value^†		0.065	0.409	<0.0001

AD Alzheimer’s disease, GLM generalized linear model, IQR interquartile range, MCI mild cognitive impairment, SCC subjective cognitive complaint, SD standard deviation, SE standard error
*GLM to compare mean total costs between the different diagnoses
^†GLM adjusted for age, sex, and education level

ISSN: 1758-9193