Statistics: Number of people with dementia in Scotland 2009

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Statistics: Number of people with dementia in Scotland (pdf)

We estimate that between 60,000¹ and 67,000² people have dementia in Scotland this year. Around 1,380 and 1,640 of these people are under the age of 65. The numbers of people with dementia in Scotland are expected to rise to between 102,000 and 114,000 by 2031.

For the 30-89 age groups we used population projections for 2009 (2006 based) from the General Register Office for Scotland. For the 90+ age group we used population projections for 2009 (2006 based) from the Government Actuary’s Department.

We applied two sets of prevalence rates to the population projections. The first are from the Eurodem study for ages 65+ and from a study conducted by Harvey for the under 65 age group. The second set of prevalence rates are from the Alzheimer Society's Dementia UK report, which provide more up-to-date estimates than the Eurodem rates.

The Dementia UK rates produce conservative estimates; therefore, we have done calculations with both sets of prevalence rates. The true number of people with dementia will be in-between this range.

Table 1: Table showing the prevalence rates of dementia (%) given by the Eurodem and Dementia UK studies.
Age group	Eurodem	Eurodem	Dementia UK	Dementia UK
	Female	Male	Female	Male
30-34	0.0672	0.0672	0.0095	0.0089
35-39	0.0672	0.0672	0.0093	0.0063
40-44	0.0672	0.0672	0.0196	0.0081
45-49	0.0672	0.0672	0.0273	0.0318
50-54	0.0672	0.0672	0.0551	0.0627
55-59	0.0672	0.0672	0.0971	0.1795
60-64	0.0672	0.0672	0.118	0.1989
65-69	1.1	2.2	1	1.5
70-74	3.9	4.6	2.4	3.1
75-79	6.7	5	6.5	5.1
80-84	13.5	12.1	13.3	10.2
85-89	22.8	18.5	22.2	16.7
90-94	32.2	32.1	29.6	27.5
95-99	36	31.6	34.4	30
100+	36	31.6	34.4	30

Table 2: Estimated number of people with dementia in Scotland in 2009 by local authority
Local authority	Number of people with dementia (Eurodem prevalence rates)			Number of people with dementia (Dementia UK prevalence rates)
	Under 65	65+	Total	Under 65	65+	Total
Aberdeen City	66	2,554	2,620	54	2,293	2,347
Aberdeenshire	82	3,004	3,085	73	2,675	2,748
Angus	36	1,655	1,691	33	1,478	1,510
Argyll & Bute	29	1,423	1,452	28	1,267	1,294
Clackmannanshire	16	546	562	14	484	498
Dumfries & Galloway	47	2,379	2,427	46	2,119	2,165
Dundee City	41	2,043	2,084	35	1,834	1,869
East Ayrshire	38	1,474	1,512	34	1,309	1,342
East Dunbartonshire	33	1,424	1,457	30	1,269	1,299
East Lothian	31	1,321	1,352	26	1,181	1,208
East Renfrewshire	28	1,228	1,256	24	1,101	1,126
Edinburgh, City of	148	5,724	5,872	110	5,159	5,269
Western Isles	9	434	443	8	390	398
Falkirk	50	1,765	1,815	41	1,569	1,610
Fife	114	4,842	4,956	100	4,328	4,428
Glasgow City	180	6,269	6,449	131	5,625	5,755
Highland	73	3,073	3,146	67	2,744	2,811
Inverclyde	25	1,087	1,113	22	974	996
Midlothian	25	947	972	22	842	864
Moray	28	1,184	1,213	25	1,053	1,078
North Ayrshire	43	1,782	1,825	38	1,586	1,624
North Lanarkshire	104	3,429	3,533	84	3,040	3,124
Orkney Islands	7	291	297	6	258	264
Perth & Kinross	46	2,247	2,292	42	2,009	2,051
Renfrewshire	54	2,005	2,059	45	1,781	1,826
Scottish Borders	37	1,649	1,686	34	1,467	1,501
Shetland Islands	7	288	295	6	257	264
South Ayrshire	35	1,828	1,863	33	1,636	1,669
South Lanarkshire	100	3,770	3,870	84	3,361	3,445
Stirling	27	1,136	1,163	24	1,014	1,038
West Dunbartonshire	29	1,111	1,140	24	995	1,020
West Lothian	56	1,479	1,535	45	1,301	1,345
Total	1,641	65,394	67,035	1,386	58,399	59,785

For more information contact Lindsay Kinnaird lkinnaird@alzscot.org (tel: 0131 243 1453).

1. Consensus prevalence rates of dementia from Alzheimer Society (2007) Dementia UK. A report to the Alzheimer’s Society on the prevalence and economic cost of dementia in the UK produced by King’s College London and London School of Economics.

2. Prevalence rates from Harvey R (1998) Young onset dementia: epidemiology, clinical symptoms, family burden, support and outcome Imperial College, London used for population aged 30 to 64. Prevalence rates from Hofman A, Rocca W A et al (1991) The prevalence of dementia in Europe: a collaborative study of 1980-1990 findings in International Journal of Epidemiology 20, 3, 736-48.

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