<prompt> Maternal mortality rate MMR is defined as - Number of maternal deaths per1000 live births1,00,000 live births10,000 live births100 live births  <response>: B 1,00,000 live births Maternal mortality rate MMR - number of maternal deaths per 1,00,000 women of reproductive age per year. In India it is about 120 as compared to 0.5 of United States. 