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Biometrical Journal 57 (2015) 5, 930

DOI: 10.1002/bimj.201500032

Letter to the Editor Antonio Mart´ın-Andr´es∗,1 and Inmaculada Herranz-Tejedor2 1

2

Biostatistica, Facultad de Medicina, Universidad de Granada, Avenida de Madrid 11, Granada, Granada 18071, Spain Biostatistica, Facultad de Medicina, Universidad Complutense de Madrid, Spain

Regarding Paper

“Stratified Fisher’s exact test and its sample size calculation” by Sin-Ho Jung Biometrical Journal (2014) 56(1): 129–140 Article: http://dx.doi.org/10.1002/bimj.201300048

Jung (2014) recently proposed a conditional exact test for testing the hypotheses of the Mantel– Haenszel test for stratified 2 × 2 tables, as well as the procedure for determining the sample size. The procedure is welcome because, in part, fills an important gap in applied statistics. However, the Jung test is not new, since it was proposed by Birch (1964). Agresti (1992) provides several references on this test and on programs that allow determining its p-value. In particular, the p-value for this test can be obtained on http://www.openepi.com/Menu/OE_Menu.htm (option “Two by Two Table”).

References Agresti, A. (1992). A survey of exact inference for contingency tables. Statistical Science 7, 131–177. Birch, M. W. (1964). The detection of partial associations I: The 2 × 2 case. Journal of Royal Statistical Society Series B 26, 313–324. Jung, S.-H. (2014). Stratified Fisher’s exact test and its sample size calculation. Biometrical Journal 56, 129–140.

∗ Corresponding

author: e-mail: [email protected], Phone: +34-58-244080, Fax: +34-58-246117

 C 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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