A Comparison of Cluster and Systematic Sampling Methods for Measuring Crude Mortality.
Affiliation
Epicentre, Paris, France. angela.rose@epicentre.msf.orgIssue Date
2006-04
Metadata
Show full item recordAbstract
OBJECTIVE: To compare the results of two different survey sampling techniques (cluster and systematic) used to measure retrospective mortality on the same population at about the same time. METHODS: Immediately following a cluster survey to assess mortality retrospectively in a town in North Darfur, Sudan in 2005, we conducted a systematic survey on the same population and again measured mortality retrospectively. This was only possible because the geographical layout of the town, and the availability of a good previous estimate of the population size and distribution, were conducive to the systematic survey design. RESULTS: Both the cluster and the systematic survey methods gave similar results below the emergency threshold for crude mortality (0.80 versus 0.77 per 10,000/day, respectively). The results for mortality in children under 5 years old (U5MR) were different (1.16 versus 0.71 per 10,000/day), although this difference was not statistically significant. The 95% confidence intervals were wider in each case for the cluster survey, especially for the U5MR (0.15-2.18 for the cluster versus 0.09-1.33 for the systematic survey). CONCLUSION: Both methods gave similar age and sex distributions. The systematic survey, however, allowed for an estimate of the town's population size, and a smaller sample could have been used. This study was conducted in a purely operational, rather than a research context. A research study into alternative methods for measuring retrospective mortality in areas with mortality significantly above the emergency threshold is needed, and is planned for 2006.Publisher
Published by WHOPubMed ID
16628302Additional Links
http://www.who.int/bulletin/enLanguage
enISSN
0042-9686ae974a485f413a2113503eed53cd6c53
/S0042-96862006000400013
Scopus Count
Collections
Related articles
- Mortality among displaced former UNITA members and their families in Angola: a retrospective cluster survey.
- Authors: Grein T, Checchi F, Escribà JM, Tamrat A, Karunakara U, Stokes C, Brown V, Legros D
- Issue date: 2003 Sep 20
- Italian cancer figures, report 2012: Cancer in children and adolescents.
- Authors: AIRTUM Working Group., CCM., AIEOP Working Group.
- Issue date: 2013 Jan-Feb
- Child mortality patterns in rural areas of Anhui and Henan provinces in China, 1990.
- Authors: Jin SG, Yang GH, Bos E, Wang J, Luo JH, Yang J, Ma EB, Tong MX, Jamison D
- Issue date: 1998 Sep
- Estimating demographic indicators in a conflict-affected population in eastern Sudan.
- Authors: Doocy S, Burnham G, Robinson C
- Issue date: 2007 Mar-Apr
- Mortality and malnutrition among populations living in South Darfur, Sudan: results of 3 surveys, September 2004.
- Authors: Grandesso F, Sanderson F, Kruijt J, Koene T, Brown V
- Issue date: 2005 Mar 23