Consideration of covariates and stratification in sample size determination for survival time studies

Statistical Methods for Survival Data Analysis.

1993 • 2,960 citations

Sample-Size Formula for the Proportional-Hazards Regression Model

1983 • 940 citations

Statistical Methods for Survival Data Analysis

1981 • 758 citations

The asymptotic properties of nonparametric tests for comparing survival distributions

1981 • 453 citations

Planning the size and duration of a clinical trial studying the time to some critical event

1974 • 287 citations

Planning the duration of a comparative clinical trial with loss to follow-up and a period of continued observation

1981 • 264 citations

Sample size and power determination for stratified clinical trials

1978 • 89 citations

Comparison of four tests for equality of survival curves in the presence of stratification and censoring

1979 • 63 citations

Comparison of Four Tests for Equality of Survival Curves in the Presence of Stratification and Censoring

1979 • 46 citations

Planning the duration of long-term survival time studies designed for accrual by cohorts

1971 • 46 citations

Sample sizes for clinical trials designed for patient accrual by cohorts

1972 • 21 citations

Magnitude and likelihood of loss resulting from non‐stratified randomization

1982 • 17 citations

Sample Size and Duration for Cohort Studies of Survival Time with Covariables

1983 • 17 citations

The effects of a stratified analysis of censored data

1983 • 1 citations