Demographic and Health Surveys Methodology - Measure DHS
Demographic and Health Surveys Methodology - Measure DHS
Demographic and Health Surveys Methodology - Measure DHS
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Another important issue is location. The <strong>DHS</strong> does not collect information on the residence of neithersisters who died nor of the residence during the exposure period of both living <strong>and</strong> dead sisters. Theresidence at the time of interview of respondents is not necessarily the same as that of their sisters.Therefore, <strong>DHS</strong> usually does not publish maternal mortality rates <strong>and</strong> maternal mortality ratios by area.Maternal mortality rates <strong>and</strong> ratios are subject to high levels of relative sampling error due to theirrelatively rare occurrence. For example, a maternal mortality ratio of 500 maternal deaths per 100,000births has the same sampling error as an infant mortality rate of 5 infant deaths per 1000 births. For asample of about 15,000 respondents, the 95% confidence interval of the MMR would be about 406 to 594maternal deaths per 100,000 births.ReferencesGraham, W., Brass, W. <strong>and</strong> Snow, R.W. Indirect estimation of maternal mortality: the sisterhood method.Studies in Family Planning, 1989, 20 (3):125-135.Rutenberg, N. <strong>and</strong> Sullivan, J.M. Direct <strong>and</strong> indirect estimates of maternal mortality from the sisterhoodmethod. IRD/Macro International Inc., Washington DC, 1991.Hanley, J.A., Hagen, C.A. <strong>and</strong> Shiferaw, T. Confidence intervals <strong>and</strong> sample size calculations for thesisterhood method of estimating maternal mortality. Studies in Family Planning 27(4) July/August 1996.WHO/UNICEF. The Sisterhood method to estimate maternal mortality. Report of a technical meeting,5-6 December 1996.Stanton, C., Abderrahim, N. <strong>and</strong> Hill, K. <strong>DHS</strong> maternal mortality indicators: An assessment of dataquality <strong>and</strong> implications for data use. <strong>Demographic</strong> <strong>and</strong> <strong>Health</strong> <strong>Surveys</strong> Analytical Report No 4, MacroInternational Inc. Calverton, Maryl<strong>and</strong>, USA, September 1997.Trussel J. <strong>and</strong> Rodriguez G. (1990) A Note On the Sisterhood Estimation of Maternal Mortality. Studiesin Family Planning, 21, 6: 344-346.Guide to <strong>DHS</strong> Statistics 160 Updated September 2006