... groups of countries can be distinguished. The first comprises Cyprus, Slovakia and Poland, where the share of the oldest persons is similar to the other countries, but the share of the elderly ... status of the elderly population, the singling out of the proportion of persons aged 80+ appears a more appropriate approach to help identify the number of the dependent elderly. The prevalence of ... 5 presents, for 2005 and 2050, the proportion of persons aged 80 and over plotted against the share of the over 65s, according to the proportion of the latter group in the population overall....