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Are rapid population estimates accurate? a field trial of two different assessment methods | Journal Article / Research | MSF Science Portal
Journal Article
|Research

Are rapid population estimates accurate? a field trial of two different assessment methods

Grais RF, Coulombier D, Ampuero J, Lucas MES, Barretto AT, Jacquier G, Diaz F, Balandine S, Brown V
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Abstract
Emergencies resulting in large-scale displacement often lead to populations resettling in areas where basic health services and sanitation are unavailable. To plan relief-related activities quickly, rapid population size estimates are needed. The currently recommended Quadrat method estimates total population by extrapolating the average population size living in square blocks of known area to the total site surface. An alternative approach, the T-Square, provides a population estimate based on analysis of the spatial distribution of housing units taken throughout a site. We field tested both methods and validated the results against a census in Esturro Bairro, Beira, Mozambique. Compared to the census (population: 9,479), the T-Square yielded a better population estimate (9,523) than the Quadrat method (7,681; 95% confidence interval: 6,160-9,201), but was more difficult for field survey teams to implement. Although applicable only to similar sites, several general conclusions can be drawn for emergency planning.

Countries

Mozambique

Languages

English
DOI
10.1111/j.0361-3666.2005.00326.x
Published Date
01 Sep 2006
PubMed ID
16911434
Journal
Disasters
Volume | Issue | Pages
Volume 30, Issue 3, Pages 364-376
Issue Date
2006-08-02
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