What is age-specific death rate?
AGE-SPECIFIC DEATH RATE is the total number of deaths to residents of a specified age or. age group in a specified geographic area (country, state, county, etc.) divided by the population. of the same age or age group in the same geographic area (for a specified time period, usually a.
What is the difference between crude death rate and age adjusted death rate?
Crude rates are influenced by the underlying age distribution of the state’s population. Age-adjusting the rates ensures that differences in incidence or deaths from one year to another, or between one geographic area and another, are not due to differences in the age distribution of the populations being compared.
What are age-specific rates?
An age-specific rate is calculated by dividing the total number of health events for the specific age-group of interest by the total population in that age group. The calculation for an age-specific rate is the same as for a crude rate.
What is the difference between direct and indirect standardization?
Direct standardisation requires that we know the age-specific rates of mortality (or morbidity) in all the populations under study. Indirect standardisation is preferable when there are small numbers in particular age groups.
What do you mean by specific death rate?
Definition: CAUSE-SPECIFIC DEATH RATE is the number of deaths from a specified cause per 100,000 person-years at risk. Cause-specific death rates may be adjusted for the age and sex composition, or other characteristics of the population.
What does age-specific mean?
(āj′spĕ-sif′ik) Pert. to conditions that vary with different stages of development or years of life.
What is an adjusted death rate?
1. Definition: AGE-ADJUSTED DEATH RATE is a death rate that controls for the effects of differences in population age distributions. It weights the age-specific rates observed in a population of interest by the proportion of each age group in a standard population (Lilienfeld & Stolley, 1994).
What can you say by comparing the crude rates to the adjusted rates?
A comparison of crude and adjusted rates also provides a way to identify whether a factor is causing confounding. By definition, if you adjust for a factor like age and the relationship changes, then there was confounding.
What is age Standardised incidence rate?
Age-standardised rates are hypothetical rates that would have been observed if the populations being studied had the same age distribution as the standard population, while all other factors remained unchanged.
What is cause specific death rate?
The cause-specific mortality rate is the mortality rate from a specified cause for a population. The numerator is the number of deaths attributed to a specific cause. The denominator remains the size of the population at the midpoint of the time period. The fraction is usually expressed per 100,000 population.
What is the difference between standardization and standardisation?
As nouns the difference between standardisation and standardization. is that standardisation is while standardization is the process of complying (or evaluate by comparing) with a standard.
What is standardization in population?
The purpose of standardization is to facilitate comparison of rates over time (or across groups) by. removing the effect of composition. The direct standardized rate for a given population combines the. population’s group-specific rates with the composition of a standard population
How do you calculate age specific death rates?
Crude and age-specific death rates equal the total number of cancer deaths during a specific year in the population category of interest, divided by the at-risk population for that category and multiplied by 100,000. Crude rates are influenced by the underlying age distribution of the state’s population.
What is the age-standardized mortality rate?
Definition The age-standardized mortality rate is a weighted average of the age-specific mortality rates per 100,000 persons, where the weights are the proportions of persons in the corresponding age groups of the WHO standard population.
What is the difference between crude and age-adjusted mortality rates?
For instance, the crude rate for most causes of death will be higher in populations with a large proportion of elderly individuals, and lower in populations with a large proportion of young individuals. An age-adjusted rate may be used to compare mortality or disease risk in two populations with with different age compositions.
What is age adjusted rate in statistics?
Age-Adjusted Rate. A “standard” population distribution is used to adjust death and hospitalization rates. The age-adjusted rates are rates that would have existed if the population under study had the same age distribution as the “standard” population. Therefore, they are summary measures adjusted for differences in age distributions.