Poverty, disease and access to appropriate and cost-effective services constitute the main constraints to reducing maternal mortality. Measuring maternal mortality accurately will determine the extent to which developing countries are able to achieve Millennium Development Goal of reducing the current high levels of maternal by 2015.

Data on maternal mortality can be collected as a special model during a particular round of data collection where an entire questionnaire is developed to capture sexual behaviour

Cohort Panel respondents could be followed for a particular period of time.

See this sample tool for collection of information on the sexual behaviour.