Vital rates refer to how fast vital statistics change in a population (usually measured per 1000 individuals). There are 2 categories within vital rates: crude rates and refined rates.
Crude rates measure vital statistics in a general population (overall change in births and deaths per 1000).
Refined rates measure the change in vital statistics in a specific demographic (such as age, sex, race, etc.).
Famous quotes containing the words vital and/or rates:
“Like all revolutions, the surrealist revolution was a reversion, a restitution, an expression of vital and indispensable spiritual needs.”
—Eugène Ionesco (b. 1912)
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