Fig. 1.

Epidemiologic transition in twelve countries, by 5-year period from 1950–2010. Data obtained from United Nations World Population Prospects: The 2012 Revision. Crude death rate reflects the number of deaths over a given period divided by the person-years lived by the population over that period. Life expectancy is the average number of years of life expected by a hypothetical cohort of individuals who would be subject during all their lives to the mortality rates of a given period. Median age is the age that divides the population in two parts of equal size. Tanzania includes Zanzibar. Data for China do not include Hong Kong and Macao, Special Administrative Regions (SAR) of China, and Taiwan Province of China. Malaysia includes Sabah and Sarawak