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:
“This leads us to note down in our psychological chart of the mass-man of today two fundamental traits: the free expansion of his vital desires, and, therefore, of his personality; and his radical ingratitude towards all that has made possible the ease of his existence. These traits together make up the well-known psychology of the spoilt child.”
—José Ortega Y Gasset (1883–1955)
“[The] elderly and timid single gentleman in Paris ... never drove down the Champs Elysees without expecting an accident, and commonly witnessing one; or found himself in the neighborhood of an official without calculating the chances of a bomb. So long as the rates of progress held good, these bombs would double in force and number every ten years.”
—Henry Brooks Adams (1838–1918)