Assessing time‐by‐covariate interactions in proportional hazards regression models using cubic spline functions

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A generalized Wilcoxon test for comparing arbitrarily singly-censored samples

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Partial residuals for the proportional hazards regression model

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Flexible regression models with cubic splines

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1992 • 2,335 citations

Martingale-based residuals for survival models

1990 • 1,028 citations

Regression Models in Clinical Studies: Determining Relationships Between Predictors and Response

1988 • 888 citations

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1989 • 736 citations

Flexible Methods for Analyzing Survival Data Using Splines, with Applications to Breast Cancer Prognosis

1992 • 483 citations

Covariance Analysis of Heart Transplant Survival Data

1977 • 462 citations

Chi-squared goodness-of-fit tests for the proportional hazards regression model

1980 • 458 citations

Spline Functions in Data Analysis

1974 • 372 citations

Splines As a Useful and Convenient Statistical Tool

1979 • 342 citations

Splines in Statistics

1983 • 327 citations

Proportional Hazard Regression Models and the Analysis of Censored Survival Data

1977 • 288 citations

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1992 • 278 citations

Testing Goodness of Fit of Cox's Regression and Life Model

1982 • 246 citations

Residuals for relative risk regression

1988 • 209 citations

Cancer clinical trials: methods and practice

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A simple test of the proportional hazards assumption

1987 • 176 citations

Regression Models and Non-Proportional Hazards in the Analysis of Breast Cancer Survival

1984 • 145 citations

A Global Goodness-of-Fit Statistic for the Proportional Hazards Model

1985 • 137 citations

Goodness-of-Fit Analysis for the Cox Regression Model Based on a Class of Parameter Estimators

1991 • 124 citations

Analysis of survival data with nonproportional hazard functions

1981 • 118 citations

Testing Goodness of Fit for Proportional Hazards Model with Censored Observations

1984 • 117 citations

A Two-Sample Censored-Data Rank Test for Acceleration

1984 • 105 citations

A Two-Step Regression Model for Hazard Functions

1982 • 96 citations

The graphical evaluation of explanatory variables in proportional hazard regression models

1981 • 83 citations

Some Diagnostic Methods for Cox Regression Models Through Hazard Smoothing

1990 • 75 citations

A Two-Sample Test Sensitive to Crossing Hazards in Uncensored and Singly Censored Data

1985 • 68 citations

Score Tests for Homogeneity of Regression Effect in the Proportional Hazards Model

1989 • 66 citations

Goodness of fit methods for the proportional hazards regression model: a review.

1984 • 59 citations

Investigating Time Dependence in Cox's Proportional Hazards Model

1990 • 59 citations

A Simple Test for Goodness of Fit of Cox's Proportional Hazards Model

1984 • 57 citations

A Generalized Moments Specification Test of the Proportional Hazards Model

1992 • 48 citations

The Crossing Hazard Function Problem

1988 • 41 citations

On D. Schoenfeld's approach for testing the proportional hazards assumption

1986 • 33 citations

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1985 • 25 citations

On residual plots for relative risk regression

1991 • 11 citations