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For computation of Infant Mortality Rate, the denominator is

  • A.Total number of pregnancies in given time
  • B.Total number of live births and still births in given time.
  • C.Total number of live births in given time.
  • D.Total population of areas in given time.

Answer: C

The denominator for the Infant Mortality Rate is the total number of live births in a given time.

The rate is the number of deaths of infants under one year per thousand live births in the same year, because the babies born are the ones at risk of dying in infancy.

Pregnancies include those that end in abortion or stillbirth, who are not at risk of an infant death. Live births plus stillbirths adds babies who were never alive, and the total population is far too wide a base, which would give a death rate for the whole population.

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