Estimating sample sizes for binary, ordered categorical, and continuous outcomes in two group comparisons

Practical Nonparametric Statistics

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Power and sample size calculations

1990 • 2,000 citations

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1978 • 1,634 citations

Practical Nonparametric Statistics

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1984 • 251 citations

Sixteen S‐squared over D‐squared: A relation for crude sample size estimates

1992 • 229 citations

Sample size determination for bioequivalence assessment by means of confidence intervals.

1991 • 221 citations

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1990 • 204 citations

Use of check lists in assessing the statistical content of medical studies.

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Sample size for beginners.

1993 • 138 citations

Clinical importance, statistical significance and the assessment of economic and quality‐of‐life outcomes

1993 • 86 citations

Can there be a more patient-centred approach to determining clinically important effect sizes for randomized treatment trials?

1994 • 77 citations

Formulae for Sample Size, Power and Minimum Detectable Relative Risk in Medical Studies

1992 • 69 citations

Power and Sample Size via MS/PC-DOS Computers

1989 • 68 citations

Management of feverish children at home.

1992 • 64 citations

Sample size: how many patients are necessary?

1995 • 63 citations

Relation of fingerprints and shape of the palm to fetal growth and adult blood pressure.

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Sample size estimation for comparing two or more treatment groups in clinical trials

1991 • 53 citations

Confidence intervals and sample sizes: don't throw out all your old sample size tables.

1991 • 36 citations

Condoms: a wider range needed.

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Power and Sample Size via MS/PC-DOS Computers

1989 • 23 citations

Planning for precision in survival studies

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Sixteen S squared over D squared: A relation for crude sample size estimates

1992 • 10 citations