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.

Maternal deaths

Maternal deaths during pregnancy or within the postpartum window.

Live births

Live births in the same period.

MMR

Maternal mortality ratio per 100000 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.

• IMR Infant Mortality Rate Calculator

  Compute the infant mortality rate as deaths under age one per one 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.