[Dynamic demography from 1900 to 1985 in Aldeavieja (Avila)]

The dynamic demography of the village of Aldeavieja (Avila) from 1900 to 1985 was evaluated with several indicators. A reduction in mortality rate was found, stabilizing around 10% since 1950, with a greater reduction in mortality rates in children. From 1900 to 1985 the Swarop index rose from 34.55% to 92.86%, and life expectancy from 30.13 to 77.5 years. The most common causes of death were infectious diseases during the first decades of the period, being now replaced by tumors and chronic diseases. There was a great demographic loss and the population became older (17.59% are now older than 65 years). It was concluded that a knowledge of dynamic demography is needed for a rational planning and an adequate resource allocation based on needs.