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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

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Official URL: http://www.kck.usm.my/ppsg/official-journal.htm

Affiliations

Universiti Sains Malaysia. School of Dental Sciences
Universiti Sains Malaysia. School of Medical Sciences

Abstract

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.

Item Type:Journal
Keywords:sample size calculator, prevalence study
Subjects:Q Science
R Medicine
ID Code:1536

Cochran WG (1977). Sampling Techniques, 3rd edition. New York: John Wiley & Sons.

Daniel WW (1999). Biostatistics: A Foundation for Analysis in the Health Sciences. 7th edition. New York: John Wiley & Sons.

Lwanga SK and Lemeshow S (1991). Sample Size Determination in Health Studies: A Practical Manual. Geneva: World Health

Organization.

Macfarlane SB (1997). Conducting a Descriptive Survey: 2. Choosing a Sampling Strategy. Trop Doct, 27(1): 14-21.

Naing L, Winn T and Rusli BN (2006). Sample Size Calculator for Prevalence Studies. Available at: http://www.kck.usm.my/ppsg/stats_resources.htm

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