<prompt> Denominator of MMR if MMR is expressed as 167 is:-Per 100000 live birthsPer 1000 total birthPer 10000 total birthTotal number of women of reproductive age group in the population  <response>: Ans. is a i.e. 1000 live births Its a ratio: Denominator is Per 100000 live births. It will be rate : if the denominator is reproductive women. But still some books write it as rate. But in Park its clearly differentiated. The data we express MMR as 167 is a ratio. 