From: The NEIL Memory Research Unit: psychosocial, biological, physiological and lifestyle factors associated with healthy ageing: study protocol
Age group
N
% of population aged 50+
50-59
518,908
40.76
60-69
392,424
30.82
70-79
233,226
18.32
80+
128,529
10.10
Total population aged 50+
1,273,087
Total population
4,588,252