About Direct standardization all are true except:
Age specific death rate is not needed
A standard population is needed
Population should be comparable
Two populations are compared
Standardization is done to compare the death rate of two populations with different age composition. Direct Standardization Indirect Standardization Method Use actual ASDRs* on the standard age structure Use Standard ASDRs* on the actual age structures Utility when 1. No. of deaths in each age group 2. Population in each age group Both are available Both are unavailable (ASDR*: Age Specific Death Rate)
Disease Causation, Measurements, Milestones