<prompt> Direct standardization is used to compare the moality rates between two countries. This is done because of the differences in:Causes of deathNumeratorsAge distributionsDenominators  <response>: Age distributions !Ref. Park 20e, p 55,56 19e, p 54, I8e, p 53 Repeat from May 06 Nov 06 Because of the differences in age distribution of two populations, their moality experience could not be compared by using crude death rate, as it lead to wrong impression. A population say population A with more young people would have low crude death rate than a population population B with more old people, thus giving an impression that population A is healthier than B, which may not be so. This confounding effect of age is removed by means of standardization. 