Use this mortality or life-table method when age intervals, deaths, exposures, survivorship, and open-ended interval assumptions refer to the same population and period.

Deaths <1

Deaths of children under one year of age in the year.

Live births

Live births in the year.

IMR

Infant mortality rate per 1000 live births.

Life-table results depend on age grouping, exposure quality, the treatment of the first and terminal intervals, and assumptions about deaths within each interval. Sparse deaths can make rates unstable.

Complement a summary mortality result with age-specific death rates, survivorship, and exposure counts. A complete life table is preferable when the question involves several ages or remaining life expectancy.

• Adult Mortality 45q15 Calculator

  Convert age-specific death rates for the five-year groups from age 15 into the probability of dying between ages 15 and 60 using q = n m / (1 + (n - a) m), with a default a of n/2 years.

• MMR Maternal Mortality Ratio Calculator

  Compute the maternal mortality ratio as deaths attributed to pregnancy and childbirth per one hundred thousand live births.

• Mortality Graduation Chart Smoothing

  Graduate a schedule of central death rates for charting by applying the symmetric 1-2-1 weighted moving average (weights one, two, one over four) across ages, holding the first and last observed values fixed and repeating for the requested number of passes.