<prompt> Denominator in specific death rate due to coronary aery disease ?1000 live bihMid year populationTotal number of deaths in a communityTotal number of case population in community  <response>: Ans. is b i.e., Mid year population Crude death rate It is the simplest measure of moality. It is defined as the number of death from all causes per 1000 estimated mid-year population in one year, in a given place. 