Dennis T. Ko

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All published works

Action	Title	Year	Authors
+	Dealing With Nonproportional Hazards in Coronary Revascularisation Studies	2023	Lucas C. Godoy Dennis T. Ko Michael E. Farkouh Baiju R. Shah Peter C. Austin
+ PDF Chat	A review of the use of propensity score methods with multiple treatment groups in the general internal medicine literature	2023	Mohammed Shurrab Dennis T. Ko Cynthia A. Jackevicius Karen Tu Allan Middleton Faith Michael Peter C. Austin
+	IMPLICATIONS OF POPULATION-BASED RECALIBRATION OF THE FRAMINGHAM RISK SCORE AND POOLED COHORT EQUATIONS IN ONTARIO, CANADA	2022	Maneesh Sud Atul Sivaswamy Anna Chu Peter C. Austin Todd J. Anderson Michael E. Farkouh Douglas S. Lee David Naimark Idan Roifman George Thanassoulis
+	Effect of Variable Selection Strategy on the Performance of Prognostic Models When Using Multiple Imputation	2019	Peter C. Austin Douglas S. Lee Dennis T. Ko Ian R. White
+	Methods in Cardiovascular Research A Review of Propensity-Score Methods and Their Use in Cardiovascular Research	2016	Saswata Deb Peter C. Austin Jack V. Tu Dennis T. Ko C. David Mazer Alex Kiss Stephen E. Fremes
+	A Review of Propensity-Score Methods and Their Use in Cardiovascular Research	2015	Saswata Deb Peter C. Austin Jack V. Tu Dennis T. Ko C. David Mazer Alex Kiss Stephen E. Fremes
+ PDF Chat	Impact of Drug Policy on Regional Trends in Ezetimibe Use	2014	Lingyun Lu Harlan M. Krumholz Jack V. Tu Joseph S. Ross Dennis T. Ko Cynthia A. Jackevicius
+ PDF Chat	A Population-Based Study to Evaluate the Effectiveness of Multidisciplinary Heart Failure Clinics and Identify Important Service Components	2012	Harindra C. Wijeysundera Gina Trubiani Xuesong Wang Nicholas Mitsakakis Peter C. Austin Dennis T. Ko Douglas S. Lee Jack V. Tu Murray Krahn

Common Coauthors

Coauthor	Papers Together
Peter C. Austin	7
Jack V. Tu	4
Douglas S. Lee	3
Saswata Deb	2
Karen Tu	2
Harindra C. Wijeysundera	2
Alex Kiss	2
C. David Mazer	2
Michael E. Farkouh	2
Stephen E. Fremes	2
Cynthia A. Jackevicius	2
Xuesong Wang	1
Anna Chu	1
Joseph S. Ross	1
George Thanassoulis	1
Gina Trubiani	1
Lingyun Lu	1
Allan Middleton	1
Mohammed Shurrab	1
Murray Krahn	1
Atul Sivaswamy	1
Ian R. White	1
Baiju R. Shah	1
Jay Udell	1
Todd J. Anderson	1
Lucas C. Godoy	1
Idan Roifman	1
Harlan M. Krumholz	1
David Naimark	1
Maneesh Sud	1
Faith Michael	1
Nicholas Mitsakakis	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	An Introduction to Propensity Score Methods for Reducing the Effects of Confounding in Observational Studies	2011	Peter C. Austin	4
+	The use of the propensity score for estimating treatment effects: administrative versus clinical data	2005	Peter C. Austin Muhammad Mamdani Thérèse A. Stukel Geoffrey M. Anderson Jack V. Tu	3
+ PDF Chat	The central role of the propensity score in observational studies for causal effects	1983	Paul R. Rosenbaum Donald B. Rubin	3
+	A Tutorial and Case Study in Propensity Score Analysis: An Application to Estimating the Effect of In-Hospital Smoking Cessation Counseling on Mortality	2011	Peter C. Austin	3
+ PDF Chat	Optimal caliper widths for propensity‐score matching when estimating differences in means and differences in proportions in observational studies	2010	Peter C. Austin	3
+	An overview of the objectives of and the approaches to propensity score analyses	2011	Georg Heinze Peter Jüni	2
+ PDF Chat	The use of propensity score methods with survival or time‐to‐event outcomes: reporting measures of effect similar to those used in randomized experiments	2013	Peter C. Austin	2
+	Goodness‐of‐fit diagnostics for the propensity score model when estimating treatment effects using covariate adjustment with the propensity score	2008	Peter C. Austin	2
+	The Relative Ability of Different Propensity Score Methods to Balance Measured Covariates Between Treated and Untreated Subjects in Observational Studies	2009	Peter C. Austin	2
+	A critical appraisal of propensity‐score matching in the medical literature between 1996 and 2003	2007	Peter C. Austin	2
+ PDF Chat	Nonparametric Estimation of Average Treatment Effects Under Exogeneity: A Review	2004	Guido W. Imbens	2
+	Propensity score methods for bias reduction in the comparison of a treatment to a non-randomized control group	1998	Ralph B. D’Agostino	2
+	A comparison of the ability of different propensity score models to balance measured variables between treated and untreated subjects: a Monte Carlo study	2006	Peter C. Austin Paul Grootendorst Geoffrey M. Anderson	2
+ PDF Chat	Balance diagnostics for comparing the distribution of baseline covariates between treatment groups in propensity‐score matched samples	2009	Peter C. Austin	2
+ PDF Chat	Variable Selection for Propensity Score Models	2006	M. Alan Brookhart Sebastian Schneeweiß Kenneth J. Rothman Robert J. Glynn Jerry Avorn Til Stürmer‎	2
+ PDF Chat	Propensity Scores in Cardiovascular Research	2007	Ralph B. D’Agostino	2
+ PDF Chat	Substantial Gains in Bias Reduction from Matching with a Variable Number of Controls	2000	Kewei Ming Paul R. Rosenbaum	2
+ PDF Chat	The role of the <i>c</i>‐statistic in variable selection for propensity score models	2010	Daniel Westreich Stephen R. Cole Michele Jönsson Funk M. Alan Brookhart Til Stürmer‎	2
+	Primer on Statistical Interpretation or Methods Report Card on Propensity-Score Matching in the Cardiology Literature From 2004 to 2006	2008	Peter C. Austin	2
+	On principles for modeling propensity scores in medical research	2004	Donald B. Rubin	2
+ PDF Chat	The performance of different propensity score methods for estimating marginal hazard ratios	2012	Peter C. Austin	2
+	Invited Commentary: Propensity Scores	1999	Marshall M. Joffe Peter Rosenbaum	2
+	Graphical methods for assessing violations of the proportional hazards assumption in cox regression	1995	Kenneth R. Hess	1
+	Two further applications of a model for binary regression	1958	D. R. Cox	1
+ PDF Chat	Bayesian propensity score analysis for observational data	2008	Lawrence C. McCandless Paul Gustafson Peter C. Austin	1
+	Comparison of procedures to assess non‐linear and time‐varying effects in multivariable models for survival data	2011	Anika Buchholz Willi Sauerbrei	1
+ PDF Chat	Restricted mean survival time: an alternative to the hazard ratio for the design and analysis of randomized trials with a time-to-event outcome	2013	Patrick Royston Mahesh Parmar	1
+	Development and validation of a prediction model with missing predictor data: a practical approach	2009	Yvonne Vergouwe Patrick Royston Karel G.M. Moons Douglas G. Altman	1
+	The accelerated failure time model: A useful alternative to the cox regression model in survival analysis	1992	L. J. Wei	1
+	Causal Inference With General Treatment Regimes	2004	Kosuke Imai David A. van Dyk	1
+	Statistical considerations when using a composite endpoint for comparing treatment groups	2012	Guadalupe Gómez Melis Stephen W. Lagakos	1
+	Multiple Imputation for Nonresponse in Surveys	1987	Donald B. Rubin	1
+	A note on a general definition of the coefficient of determination	1991	N. J. D. Nagelkerke	1
+	Causal inference with a quantitative exposure	2012	Zhiwei Zhang Jie Zhou Weihua Cao Jun Zhang	1
+	Efficiency of the logistic regression and cox proportional hazards models in longitudinal studies	1989	I. Annesi Thierry Moreau J Lellouch	1
+	Multiple imputation using chained equations: Issues and guidance for practice	2010	Ian R. White Patrick Royston Angela Wood	1
+	A Review of Propensity-Score Methods and Their Use in Cardiovascular Research	2015	Saswata Deb Peter C. Austin Jack V. Tu Dennis T. Ko C. David Mazer Alex Kiss Stephen E. Fremes	1
+ PDF Chat	Variables with time-varying effects and the Cox model: Some statistical concepts illustrated with a prognostic factor study in breast cancer	2010	C. Bellera Gaëtan MacGrogan Marc Debled C. Tunon de Lara Véronique Brouste Simone Mathoulin‐Pélissier	1
+ PDF Chat	The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study	2014	Peter C. Austin Tibor Schuster	1
+ PDF Chat	Variation Over Time of the Effects of Prognostic Factors in a Population-based Study of Colon Cancer: Comparison of Statistical Models	1999	Catherine Quantin Michał Abrahamowicz T. Moreau Gillian Bartlett Todd A. MacKenzie M. A. Tazi L. Lalonde Jean Faivre	1
+ PDF Chat	Misunderstandings Between Experimentalists and Observationalists about Causal Inference	2008	Kosuke Imai Gary King Elizabeth A. Stuart	1
+	Use of composite endpoints in clinical trials	2014	Abdul J. Sankoh Haihong Li Ralph B. D’Agostino	1
+	The use of restricted mean survival time to estimate the treatment effect in randomized clinical trials when the proportional hazards assumption is in doubt	2011	Patrick Royston Mahesh Parmar	1
+ PDF Chat	Combining estimates of interest in prognostic modelling studies after multiple imputation: current practice and guidelines	2009	Andrea Marshall Douglas G. Altman Roger Holder Patrick Royston	1
+	Nonparametric analysis of an accelerated failure time model	1981	Thomas A. Louis	1
+ PDF Chat	Estimating average regression effect under non-proportional hazards	2000	Ronghui Xu	1
+	AN EMPIRICAL COMPARISON OF STATISTICAL TESTS FOR ASSESSING THE PROPORTIONAL HAZARDS ASSUMPTION OF COX'S MODEL	1997	Nicholas Ngʼandu	1
+	Cox Analysis of Survival Data with Non-Proportional Hazard Functions	1992	M. Schemper	1
+ PDF Chat	Matching Weights to Simultaneously Compare Three Treatment Groups	2017	Kazuki Yoshida Sonia Hernández–Dı́az Daniel H. Solomon John W. Jackson Joshua J. Gagne Robert J. Glynn Jessica M. Franklin	1
+	Estimation of treatment effects in weighted log-rank tests	2017	Ray Lin Larry Leon	1