Years of potential life lost
Years of Potential Life Lost (YPLL) is a measure of premature mortality, and it represents the total number of years that individuals lose due to untimely death. The concept of YPLL is used in the field of epidemiology and public health to assess the impact of different diseases or injuries on population health.
Calculation[edit | edit source]
The calculation of YPLL involves subtracting the age at death from a predetermined end-point age. The most commonly used end-point age is 75 years, but this can vary depending on the context. The total YPLL for a population is the sum of the YPLL for each individual who died prematurely.
Uses[edit | edit source]
YPLL is used to identify and prioritize public health issues. It is particularly useful for highlighting the impact of diseases or injuries that affect younger people. For example, a disease that primarily affects children and young adults will have a higher YPLL than a disease that primarily affects older adults, even if the total number of deaths is the same.
Limitations[edit | edit source]
One limitation of YPLL is that it does not take into account the quality of life lost due to disease or injury. Another limitation is that it assumes that all years of life are of equal value, which may not be the case. For example, a year of life for a child may be valued more highly than a year of life for an older adult.
See also[edit | edit source]
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