Practical Issues in Calculating the Sample Size for Prevalence Studies
Naing L., and Winn T., and Rusli B.N., (2006) Practical Issues in Calculating the Sample Size for Prevalence Studies. Archives of Orofacial Sciences, 1 . pp. 9-14. ISSN 1823-8602
Official URL: http://www.kck.usm.my/ppsg/official-journal.htm
Universiti Sains Malaysia. School of Dental Sciences
Universiti Sains Malaysia. School of Medical Sciences
The sample size calculation for a prevalence only needs a simple formula. However, there are a number of practical issues in selecting values for the parameters required in the formula. Several practical issues are addressed and appropriate recommendations are given. The paper also suggests the application of a software calculator that checks the normal approximation assumption and incorporates finite population correction in the sample size calculation.
|Keywords:||sample size calculator, prevalence study|
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