cluster sampling for determination of immunization coverage: a limitation
نویسندگان
چکیده
evidence provided from studies in iran points to a possible bias in application of the standard epi cluster sampling procedure, when carried out in populations with highly variant birth rates, tends to over-represent the low birth rate, i.e. higher socio-economic, strata, and if the entity under study shows significant socio-economic gradient, then the estimates arrived at by this method might be highly biased. some alternatives have been mentioned.
منابع مشابه
Cluster sampling for immunization coverage.
The WHO/EPI cluster sampling method for immunization coverage surveys is part of the course for management training in EPI programmes. The application of this method, based on a framework of villages, is impractical in dispersed populations common in many countries in Africa. To make the method work under those circumstances leads to unacceptable bias, which tends to overestimate the real cover...
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عنوان ژورنال:
iranian journal of public healthجلد ۱۸، شماره ۱-۴، صفحات ۲۹-۳۸
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