Tableau 3.

Impact of an intervention carried out in 2010 involving an immediate reduction in the incidence of dementia and Alzheimer disease

Intervention delaying onset of dementia
	2010	2015	2020	2030	2040	2050
Without intervention N	754	966	1 026	1 287	1 579	1 813
Onset delaying of 1 year N	754	885	914	1 131	1 397	1 615
%*		8,3	10,9	12,2	11,5	10,9
Onset delaying of 2 year N	754	812	813	987	1 230	1 431
%*		15,9	20,8	23,3	22,1	21,1
Onset delaying of 5 year N	754	635	566	641	812	965
%*		34,2	44,8	50,2	48,6	46,8
Intervention delaying onset of Alzheimer disease
Impact on the number of Alzheimer disease
Without intervention N	504	657	699	864	1 066	1 226
Onset delaying of 1 year N	504	600	621	756	940	1 089
%*		8,7	11,2	12,4	11,8	11,2
Onset delaying of 2 years N	504	548	550	659	825	961
%*		16,6	21,4	23,7	22,6	21,6
Onset delaying of 5 years N	504	425	379	426	539	641
%*		35,4	45,8	50,7	49,4	47,7
Impact on the number of Dementia
Without intervention N	754	966	1 026	1 287	1 579	1 813
Onset delaying of 1 year N	754	908	947	1 180	1 453	1 676
%*		5,9	7,6	8,4	8,0	7,6
Onset delaying of 2 year N	754	856	877	1 082	1 338	1 548
%*		11,3	14,5	15,9	15,3	14,6
Onset delaying of 5 year N	754	733	706	849	1 052	1 228
%*		24,1	31,2	34,0	33,4	32,2

^*Proportion of reduction in the number of cases compared to projections of the principal scenario without intervention