ABSTRACT
This chapter shows the different ways of calculating the various rates used in demography. There is a crude death rate, a crude birth rate, and a crude marriage rate. Calculation of mortality rates is usually carried out for groups of several years of age. It is common to calculate rates restricted to all or part of the female population of reproductive age. The method of calculation of age-specific fertility rates is completely analogous to that employed for determining the mortality rates by age or age groups. The infant mortality rate is intended to measure mortality between 0 and 1 year of age. The most common method of calculating the infant mortality rate is to relate infant deaths in the calendar year to live births in the same year. Conditions of observation or the requirements of analysis may demand calculation of rates or quotients for periods longer or shorter than a year.
