<prompt> Denominator for calculating infant moality rate is: September 20051000 population1000 bihs1000 live bihs1000 pregnancies  <response>: Ans. C: 1000 live bihs IMR Number of deaths of children less than 1 year of age in a year X 1000number of live bihs in the same year IMR is universally regarded a s not only as a most impoant indicator of the health status of a community but also the level of living of people in general, and effectiveness of MCH services in paicular. It is expressed as a rate per 1000 live bihs. 