Evidence map›Paper›PMID 20838629›Full record

ArticleGlobal health action2010

Under-five mortality: spatial-temporal clusters in Ifakara HDSS in South-eastern Tanzania.

Angelina M Lutambi, Mathew Alexander, Jensen Charles, Chrisostom Mahutanga, Rose Nathan

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Article in Global health action, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

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8citing papers in PubMed
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1 · What the graph read from it

What it found

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3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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  7. The INDEPTH Network: filling vital gaps in global epidemiology.International journal of epidemiology · 2012
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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Angelina M LutambiIfakara Health Institute, Mikocheni, Dar es Salaam, Tanzania.
Mathew Alexander
Jensen Charles
Chrisostom Mahutanga
Rose Nathan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChildhood mortality remains an important subject, particularly in sub-Saharan Africa where levels are still unacceptably high. To achieve the set Millennium Development Goals 4, calls for comprehensive application of the proven cost-effective interventions. Understanding spatial clustering of childhood mortality can provide a guide in targeting the interventions in a more strategic approach to the population where mortality is highest and the interventions are most likely to make an impact.

methodsAnnual child mortality rates were calculated for each village, using person-years observed as the denominator. Kulldorff's spatial scan statistic was used for the identification and testing of childhood mortality clusters. All under-five deaths that occurred within a 10-year period from 1997 to 2006 were included in the analysis. Villages were used as units of clusters; all 25 health and demographic surveillance sites (HDSS) villages in the Ifakara health and demographic surveillance area were included.

resultsOf the 10 years of analysis, statistically significant spatial clustering was identified in only 2 years (1998 and 2001). In 1998, the statistically significant cluster (p < 0.01) was composed of nine villages. A total of 106 childhood deaths were observed against an expected 77.3. The other statistically significant cluster (p < 0.05) identified in 2001 was composed of only one village. In this cluster, 36 childhood deaths were observed compared to 20.3 expected. Purely temporal analysis indicated that the year 2003 was a significant cluster (p < 0.05). Total deaths were 393 and expected were 335.8. Spatial-temporal analysis showed that nine villages were identified as statistically significant clusters (p < 0.05) for the period covering January 1997-December 1998. Total observed deaths in this cluster were 205 while 150.7 were expected.

conclusionThere is evidence of spatial clustering in childhood mortality within the Ifakara HDSS. Further investigations are needed to explore the source of clustering and identify strategies of reaching the cluster population with the existing effective interventions. However, that should happen alongside delivery of interventions to the broader population.

Indexed as

clusteringhealth and demographic surveillance systemIfakaraspatialspatial–temporal analysisunder-five mortality

Identifiers

PMID20838629
PMCPMC2935920

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