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About Maternal Mortality
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MMM Resource

This resource calculates the sample size required for all the different methods of estimating maternal mortality and helps the user understand

  1. the most suitable methods
  2. the relative cost of each approach and

For each country, you can populate the tables with default values which were generally obtained from UN sources or are standard defaults. Alternatively, you can overwrite any of these values if you have better data or want to experiment with alternative options. For example, we have entered the population of Afghanistan as 26,088,000 but you can change this value. We have also put the default level of confidence as 1.96 (95% confidence) but this can be changed to 1.65 for example (90% confidence).

Choose the country in which your research is to be undertaken and the desired level of precision. You will have the option to override the default values.

Relative precision required?  
Level of confidence?  
Average number of sisters?  
Design effect?  
Reference period (years)?  
Number of births?  
Number of maternal deaths?  
Total population  
Average household size  
Population of women 15-49  
Crude birth rate births/1000 population
General fertility rate (calculated from previous values) is: births/1000 women 15-49
Total fertility rate? per woman
Estimated maternal mortality ratio per 100000 live births
Proportion of maternal deaths of women of reproductive age  


Are any upcoming household surveys planned within a reasonable timeframe?
Is a census planned within a reasonable timeframe?
What is the coverage of civil registration of births in your country?
What is the coverage of civil registration of deaths in your country?
What is the completeness of death registration in your country?
What is the percent coverage of institutional deliveries?
What is the percentage of births attended by skilled health personnel?
Do you have a Demographic Surveillance System (DSS)?