. 2019 Jul;25(7):10.18553/jmcp.2019.25.7.800. doi: 10.18553/jmcp.2019.25.7.800

TABLE 3.

Risk Adjustment Differentials Compared with No Dementia Patients by Year Before Death^a,b

Dementia Classification	Risk Adjustment Differentials Compared with No Dementia by Year Before Death
Dementia Classification	8	7	6	5	4	3	2	1	0
Risk adjustment factor
Alzheimer disease	1.11^b	1.19^c	1.26^b	1.35^b	1.45^b	1.58^b	1.72	1.91^b	2.15^b
General dementia	1.20^b	1.29^b	1.37^b	1.47^b	1.58^b	1.70^b	1.86^b	2.08^b	2.42^b
No dementia	1.13	1.20	1.28	1.37	1.47	1.59	1.73	1.93	2.26
Risk adjustment differential compared with no dementia
Alzheimer disease	(0.03)^b	(0.01)^b	(0.01)^b	(0.02)^b	(0.02)^b	(0.02)^b	(0)	(0.02)^b	(0.11)^b
General dementia	0.07^b	0.09^b	0.09^b	0.09^b	0.11^b	0.11^b	0.13^b	0.16^b	0.17^b

Source: Authors’ analysis of the 2006-2015 Medicare 5 Percent Limited Data Set claims files.²⁷

^aDifferential calculated as Alzheimer disease/general dementia risk score minus no dementia risk score. For example, the Alzheimer average risk score in Year 0 (= 2.15) is 0.11 less than the no dementia risk score in Year 0 (= 2.26).

^bP < 0.01.

^cP < 0.1.