Table of Contents
How do you Standardise a population?
Procedure for indirect standardization Multiply the number of people in each age group of the population(s) of interest by the age-specific mortality rate in the comparable age group of the reference population. Sum the total number of expected deaths for each population of interest.
What is the difference between direct standardization and indirect standardization?
There are two major standardization methods: one is used when the ‘standard’ is the structure of a population (direct method) and the other when the ‘standard’ is a set of specific event rates (indirect method).
Why is direct standardization used?
Direct standardization is used when the number of events or the mortality rates in each age group within the population, is known, whereas indirect standardization is used when the number of events or the mortality rates in each age group within the population is not known.
What is the purpose of standardization in demography?
Standardization is a technique used in comparing indicators from two or more populations. The goal of the standardization procedure is to control for compositional differences between these groups that may influence the indicator that is being examined.
What are the methods of standardization?
There are two main standardization methods, characterized by whether the standard used is a population distribution (direct method) or a set of specific rates (indirect method).
What is indirect Standardisation?
Indirect standardization is used to calculate the expected mortality rate for the index population, given age specific mortality rates from a reference population. The method applies not only to mortality rates but also to any rates of uncommon events (i.e. the Poisson distribution can be applied).
What is age Standardisation epidemiology?
Age standardisation is a process of adjusting for a population’s rate of injury to account for changes in the age structure of the population over time. Age standardised rates provide an estimate of an individual’s average annual risk of being injured.
What are the four types of standards?
Basic standards.
What are standards and types?
Normal standards. Current standards. Attainable (expected) standards. Ideal (theoretical) standards.