Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 Jun;41(3):676-85.
doi: 10.1093/ije/dys088. Epub 2012 Jun 22.

Profile: the Karonga Health and Demographic Surveillance System

Affiliations

Profile: the Karonga Health and Demographic Surveillance System

Amelia C Crampin et al. Int J Epidemiol. 2012 Jun.

Abstract

The Karonga Health and Demographic Surveillance System (Karonga HDSS) in northern Malawi currently has a population of more than 35 000 individuals under continuous demographic surveillance since completion of a baseline census (2002-2004). The surveillance system collects data on vital events and migration for individuals and for households. It also provides data on cause-specific mortality obtained by verbal autopsy for all age groups, and estimates rates of disease for specific presentations via linkage to clinical facility data. The Karonga HDSS provides a structure for surveys of socio-economic status, HIV sero-prevalence and incidence, sexual behaviour, fertility intentions and a sampling frame for other studies, as well as evaluating the impact of interventions, such as antiretroviral therapy and vaccination programmes. Uniquely, it relies on a network of village informants to report vital events and household moves, and furthermore is linked to an archive of biological samples and data from population surveys and other studies dating back three decades.

PubMed Disclaimer

Figures

Photograph 1
Photograph 1
Karonga HDSS—survey team recruiting family for survey (written consent obtained from participants). Photograph: Vijay Bansode
Figure 1
Figure 1
(A) Location of Karonga district and Karonga HDSS in Malawi; (B) map of Karonga HDSS showing household distribution, primary and secondary roads and location of health facilities; (C) map of Karonga HDSS showing cluster and reporting group boundaries. Data and boundaries from Karonga HDSS databases at end 2011
Photograph 2
Photograph 2
Karonga HDSS—nurse recruiting mother and child for paediatric disease surveillance in health facility (written consent obtained from participants). Photograph: Anna Molesworth
Figure 2
Figure 2
Population pyramid of Karonga HDSS (A) 2004 and (B) 2010. Data represent individuals under observation at the mid-point of these years

Comment in

References

    1. Ponninghaus JM, Fine PE, Bliss L, Sliney IJ, Bradley DJ, Rees RJ. The Lepra Evaluation Project (LEP), an epidemiological study of leprosy in Northern Malawi. I. Methods. Lepr Rev. 1987;58:359–75. - PubMed
    1. Ponnighaus JM, Fine PE, Sterne JA, et al. Efficacy of BCG vaccine against leprosy and tuberculosis in northern Malawi. Lancet. 1992;339:636–39. - PubMed
    1. Crampin AC, Glynn JR, Fine PE. What has Karonga taught us? Tuberculosis studied over three decades. Int J Tuberc Lung Dis. 2009;13:153–64. - PMC - PubMed
    1. Crampin AC, Glynn JR, Ngwira BM, et al. Trends and measurement of HIV prevalence in northern Malawi. Aids. 2003;17:1817–25. - PubMed
    1. Jahn A, Crampin A, Glynn J, et al. Evaluation of a village-informant driven demographic surveillance system in Karonga, Northern Malawi. Demogr Res. 2007;16:2119–248.

Publication types

MeSH terms

Substances