Cluster sampling to assess immunization coverage: a review of experience with a simplified sampling method.
PubMedPublished 1 January 1982
Henderson Rh, Tilak Sundaresan
Citations617
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TL;DR
The precision of this method, as estimated from the results of both actual and simulated surveys, is considered satisfactory for the requirements of the EPI.
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Social SciencesMedicine
PubMedAssessment of vaccination coverage, vaccination scar rates, and smallpox scarring in five areas of West Africa.
61 Citations1973Ralph H. Henderson, Hillard Davis +2 more
Sample survey data collected to assess the results of the programme in Northern Nigeria, Western Nigeria, Niger, Dahomey, and Togo indicate that the programme, which used mass vaccination campaigns based on a collecting-point strategy, was generally successful in reaching a high proportion of the population.