Years of potential life lost (YPLL) or potential years of life lost (PYLL), is an estimate of the average years a person would have lived if he or she had not died prematurely. It is, therefore, a measure of premature mortality. As a method, it is an alternative to death rates that gives more weight to deaths that occur among younger people. Another alternative is to consider the effects of both disability and premature death using disability adjusted life years.
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Famous quotes containing the words years of, years, potential, life and/or lost:
“Quintilian [educational writer in Rome around A.D. 100] thought that the earliest years of the childs life were crucial. Education should start earlier than age seven, within the family. It should not be so hard as to give the child an aversion to learning. Rather, these early lessons would take the form of playthat embryonic notion of kindergarten.”
—C. John Sommerville (20th century)
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—Herman Melville (18191891)
“Not many appreciate the ultimate power and potential usefulness of basic knowledge accumulated by obscure, unseen investigators who, in a lifetime of intensive study, may never see any practical use for their findings but who go on seeking answers to the unknown without thought of financial or practical gain.”
—Eugenie Clark (b. 1922)
“Oh! what a poor thing is human life in its best enjoyments!subjected to imaginary evils when it has no real ones to disturb it! and that can be made as effectually unhappy by its apprehensions of remote contingencies as if it was struggling with the pains of a present distress!”
—Samuel Richardson (16891761)
“The general feeling was, and for a long time remained, that one had several children in order to keep just a few. As late as the seventeenth century . . . people could not allow themselves to become too attached to something that was regarded as a probable loss. This is the reason for certain remarks which shock our present-day sensibility, such as Montaignes observation, I have lost two or three children in their infancy, not without regret, but without great sorrow.”
—Philippe Ariés (20th century)