Iranian Journal of Public Health (Dec 1989)

CLUSTER SAMPLING FOR DETERMINATION OF IMMUNIZATION COVERAGE: A LIMITATION

  • K. Nasseri,
  • K. Mohammad,
  • M. Khoshgam

Journal volume & issue
Vol. 18, no. 1-4

Abstract

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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.

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