Abstract
The population is growing worldwide. The World Health Organization (WHO) estimates that the global population will approach 10 billion by the year 2050.1 In addition, the population is ageing rapidly in all continents. In 2050 almost 35% of the European population will be >60 years of age, as compared with 25% at present.2 This will have marked impact on the population composition of most European countries; at the end of this century 40% of the so-called ‘dependant population’, which is the joint proportion of those aged 60 years, will consist of older people and 60% of 60-year-olds and 85% of 20% at 75 years of age.4 The standardised prevalence of Alzheimer’s disease among …