Demographic and Health Surveys Methodology - Measure DHS
Demographic and Health Surveys Methodology - Measure DHS
Demographic and Health Surveys Methodology - Measure DHS
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
ADULT MORTALITY (DIRECT METHOD)Statistics: Age-specific Maternal Mortality Rates; Total Maternal Mortality Rate; MaternalMortality Ratio (Direct Method)DefinitionA. Coverage: Women age 15-49 years.B. Numerator:Number of female siblings of respondents who died during pregnancy, delivery or within twomonths of delivery in the period 0-6, 7-13, <strong>and</strong> 0-13 years prior to the interview by five-year agegroup at time of death. Maternal deaths of sisters 50 years <strong>and</strong> older are added to the number ofmaternal deaths of sisters 45-49 years.G. Denominator:Number of years of exposure of female siblings of respondents during the period 0-6, 7-13, <strong>and</strong> 0-13 years prior to the survey by five-year age group.H. Calculation of Maternal Mortality Rates:e. Numerator: Deaths are tabulated in the same way as for adult age-specific mortalityrates <strong>and</strong> then multiplied by the proportion of deaths that occurred during pregnancy,delivery or within two months of delivery.f. Denominator: Women-years of exposure are calculated in the same way as for adultage-specific mortality.Once the numerators <strong>and</strong> denominators are properly established, age-specific maternal mortality rates areobtained by the division of the numerators by the corresponding denominators <strong>and</strong> multiplying by100,000. The total maternal mortality rate (for age 15-49) is obtained by multiplying the age-specificmortality rates by the proportion of respondents in the five-year age group <strong>and</strong> then summing the agedistribution-adjustedmaternal mortality rates. The total proportion of deaths maternal is calculated bydividing the total maternal mortality rate by the general 15-49 adult mortality rate of women.I. Calculation of the Maternal Mortality Ratio:The maternal mortality ratio is calculated by dividing the total maternal mortality rate by thegeneral fertility rate (see page 32) for the period <strong>and</strong> is expressed per 100,000 births bymultiplying the product by 1000.H<strong>and</strong>ling of Missing ValuesSiblings whose maternal status at the time of death are unknown to the respondent or are missing in thedata set are allocated to maternal deaths in the proportion they are to deaths of any maternal status. Foreach age group of siblings, the number of deaths of known maternal status is divided by the number ofdeaths of any status to get the proportion of maternal deaths. This proportion is then multiplied by thenumber of deaths of unknown status to calculate the number of deaths to add to the known maternaldeaths to get the total number of maternal deaths in each age group.Guide to <strong>DHS</strong> Statistics 156 Updated September 2006