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| Hsieh FY (1989) gives formulae to compute power for given total sample size in a multiple binary logistic regression. These calculations can be done using a [attachment:llogpow1.xls spreadsheet.] | Hsieh FY (1989) gives formulae to compute power for given total sample size in a multiple binary logistic regression having odds ratios upto 3 in value. These calculations can be done using a [attachment:llogpow1.xls spreadsheet.] |
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Hsieh, F.Y., Block, D.A., and Larsen, M.D. (1998). A Simple Method of Sample Size Calculation for Linear and Logistic Regression. Statistics in Medicine, Volume 17, pages 1623-1634. |
A single predictor in a multiple binary logistic regression
A power calculator is given [http://www.dartmouth.edu/~eugened/power-samplesize.php here] for upto two binary covariates using Demidenko (2007, 2008) and [http://biostat.hitchcock.org/MeasurementError/Analytics/SampleSizeCalculationsforLogisticRegression.asp here.]
Hsieh FY (1989) gives formulae to compute power for given total sample size in a multiple binary logistic regression having odds ratios upto 3 in value. These calculations can be done using a [attachment:llogpow1.xls spreadsheet.]
References
Demidenko E (2007) Sample size determination for logistic regression revisited. Statistics in Medicine 26 3385-3397.
Demidenko E (2008) Sample size and optimal design for logistic regression with binary interaction. Statistics in Medicine, 27 36-46.
Hsieh FY (1989) Sample size tables for logistic regression. Statistics in Medicine 8 795-802.
Hsieh, F.Y., Block, D.A., and Larsen, M.D. (1998). A Simple Method of Sample Size Calculation for Linear and Logistic Regression. Statistics in Medicine, Volume 17, pages 1623-1634.