person-year

English

Etymology

Compound of person +‎ year, although, as with any such unit of measure (e.g., ton-miles, newton metres), the mathematical relationship of multiplication is simultaneously involved: X persons working during Y years = X × Y = Z person-years.

Noun

person-year (plural person-years)

  1. One person's working time for a year, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task.
    Synonym: man-year
    Meronyms: person-hour, man-hour < person-day, man-day < person-month, man-month
    Altogether it took hundreds of person-years to build the bridge and dam, and such a payroll is not cheap.
    • 2024 May 8, Katia Hetter, “Mammograms are now recommended starting at age 40. Should you get one?”, in CNN‎[1]:
      This is especially true for Black women. the rate of deaths from breast cancer among Black women in their 40s was 27 per 100,000 person-years, compared to 15 per 100,000 person-years among White women, according to a 2023 JAMA Network Open study.

Translations

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