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American Journal of Epidemiology Vol. 129, No. 1: 205-211
Copyright © 1989 by The Johns Hopkins University School of Hygiene and Public Health

other

A PROGRAM TO CALCULATE SAMPLE SIZE, POWER, AND LEAST DETECTABLE RELATIVE RISK USING A PROGRAMMABLE CALCULATOR

J. MICHAEL MUHM1, and ANDREW F. OLSHAN2

1Department of Epidemiology, School of Public Health and Community Medicine, University of Washington Seattle, WA 98195
2Department of Medical Genetics, University of British Columbia, No. 226 Wesbrook Building, 6174 University Blvd. Vancouver, British Columbia, Canada V6T 1W5

Send reprint re quests to Dr. J. Michael Muhm at this address.

Muhtn, J. M. (School of Public Health, U. of Washington, Seattle, WA 98195), and A. F. Olshan. A Program to calculate sample size, power, and least detectable relative risk using a programmable calculator. Am J Epidemiol 1989;129: 205–11.

A program for the Hewlett Packard 41 series programmable calculator that determines sample size, power, and least detectable relative risk for comparative studies with independent groups Is described. The user may specify any ratio of cases to controls (or exposed to unexposed subjects) and, If calculating least whether the study Is a case-control or cohort study.

epidemiologic methods; sample size


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