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- Title
Measuring the performance of vaccination programs using cross-sectional surveys: a likelihood framework and retrospective analysis.
- Authors
Lessler, Justin; Metcalf, C Jessica E; Grais, Rebecca F; Luquero, Francisco J; Cummings, Derek A T; Grenfell, Bryan T
- Abstract
The performance of routine and supplemental immunization activities is usually measured by the administrative method: dividing the number of doses distributed by the size of the target population. This method leads to coverage estimates that are sometimes impossible (e.g., vaccination of 102% of the target population), and are generally inconsistent with the proportion found to be vaccinated in Demographic and Health Surveys (DHS). We describe a method that estimates the fraction of the population accessible to vaccination activities, as well as within-campaign inefficiencies, thus providing a consistent estimate of vaccination coverage.
- Publication
PLoS medicine, 2011, Vol 8, Issue 10, pe1001110
- ISSN
1549-1676
- Publication type
Journal Article
- DOI
10.1371/journal.pmed.1001110