Ryota Ishii

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All published works

Action	Title	Year	Authors
+ PDF Chat	geessbin: an R package for analyzing small-sample binary data using modified generalized estimating equations with bias-adjusted covariance estimators	2024	Ryota Ishii Tomohiro Ohigashi Kazushi Maruo Masahiko Gosho
+ PDF Chat	Determining the prior mean in Bayesian logistic regression with sparse data: a nonarbitrary approach	2024	Masahiko Gosho Ryota Ishii Kengo Nagashima Hisashi Noma Kazushi Maruo
+	Small sample adjustment for inference without assuming orthogonality in a mixed model for repeated measures analysis	2024	Kazushi Maruo Ryota Ishii Yusuke Yamaguchi Tomohiro Ohigashi Masahiko Gosho
+ PDF Chat	Correction to: Performance Evaluation of Interim Analysis in Bioequivalence Studies	2024	Naoki Isogawa Andrew P. Grieve Ryota Ishii Kazushi Maruo
+	Performance Evaluation of Interim Analysis in Bioequivalence Studies	2024	Naoki Isogawa Andrew P. Grieve Ryota Ishii Kazushi Maruo
+ PDF Chat	Performance evaluation of interim analysis in bioequivalence studies.	2024	Naoki Isogawa Andrew P. Grieve Ryota Ishii Kazushi Maruo
+ PDF Chat	Multivariate generalized mixed-effects models for screening multiple adverse drug reactions in spontaneous reporting systems	2024	Masahiko Gosho Ryota Ishii Tomohiro Ohigashi Kazushi Maruo
+	A comparison of bias‐adjusted generalized estimating equations for sparse binary data in small‐sample longitudinal studies	2023	Masahiko Gosho Ryota Ishii Hisashi Noma Kazushi Maruo
+	Statistical tests for two‐stage adaptive seamless design using short‐ and long‐term binary outcomes	2022	Kenichi Takahashi Ryota Ishii Kazushi Maruo Masahiko Gosho
+ PDF Chat	Finite-sample performance of the robust variance estimator in the presence of missing data	2022	Ryota Ishii Kazushi Maruo Masaaki Doi Masahiko Gosho
+ PDF Chat	Statistical methods for seamless phase II/III design	2022	Kenichi Takahashi Ryota Ishii Kazushi Maruo Masahiko Gosho
+	Effect of Covariate Omission in Randomised Controlled Trials: A Review and Simulation Study	2021	Ryota Ishii Kazushi Maruo Masahiko Gosho
+ PDF Chat	Confidence interval for the AUC of SROC curve and some related methods using bootstrap for meta-analysis of diagnostic accuracy studies	2021	Hisashi Noma Yuki Matsushima Ryota Ishii
+	Modified likelihood ratio test in accelerated failure time models for small-sample data	2021	亮太石井リョウタイシイ Ryota Ishii
+ PDF Chat	Outlier detection and influence diagnostics in network meta‐analysis	2020	Hisashi Noma Masahiko Gosho Ryota Ishii Koji Oba Toshi A. Furukawa
+ PDF Chat	Statistical Inference Based on Accelerated Failure Time Models Under Model Misspecification and Small Samples	2020	Ryota Ishii Kazushi Maruo Hisashi Noma Masahiko Gosho
+	bcmixed: Mixed Effect Model with the Box-Cox Transformation	2020	Kazushi Maruo Ryota Ishii
+ PDF Chat	A note on the bias of standard errors when orthogonality of mean and variance parameters is not satisfied in the mixed model for repeated measures analysis	2020	Kazushi Maruo Ryota Ishii Yusuke Yamaguchi Masaaki Doi Masahiko Gosho
+ PDF Chat	An Efficient Procedure for Calculating Sample Size Through Statistical Simulations	2017	Kazushi Maruo Keisuke Tada Ryota Ishii Masahiko Gosho
+	Analysis of an incomplete longitudinal composite variable using a marginalized random effects model and multiple imputation	2016	Masahiko Gosho Kazushi Maruo Ryota Ishii Akihiro Hirakawa

Common Coauthors

Coauthor	Papers Together
Kazushi Maruo	17
Masahiko Gosho	14
Hisashi Noma	5
Tomohiro Ohigashi	3
Andrew P. Grieve	3
Naoki Isogawa	3
Yusuke Yamaguchi	2
Kenichi Takahashi	2
Masaaki Doi	2
リョウタイシイ	1
Koji Oba	1
Keisuke Tada	1
Kengo Nagashima	1
亮太石井	1
Yuki Matsushima	1
Akihiro Hirakawa	1
Toshi A. Furukawa	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	A Covariance Estimator for GEE with Improved Small‐Sample Properties	2001	Lloyd Mancl Timothy A. DeRouen	6
+	Comparison of bias-corrected covariance estimators for MMRM analysis in longitudinal data with dropouts	2015	Masahiko Gosho Akihiro Hirakawa Hisashi Noma Kazushi Maruo Yasunori Sato	5
+	A Note on the Efficiency of Sandwich Covariance Matrix Estimation	2001	Göran Kauermann Raymond J. Carroll	5
+	Longitudinal data analysis using generalized linear models	1986	Kung‐Yee Liang Scott L. Zeger	4
+	Maximum Likelihood Estimation of Misspecified Models	1982	Halbert White	4
+	Applied Longitudinal Analysis	2011	Garrett M. Fitzmaurice Nan M. Laird James H. Ware	4
+	Interpretable inference on the mixed effect model with the Box-Cox transformation	2017	Kazushi Maruo Yusuke Yamaguchi Hisashi Noma Masahiko Gosho	4
+	Confirmatory Seamless Phase II/III Clinical Trials with Hypotheses Selection at Interim: General Concepts	2006	Frank Bretz Heinz Schmidli Franz König Amy Racine Willi Maurer	3
+	Adaptive Seamless Phase II/III Designs—Background, Operational Aspects, and Examples	2006	Jeff Maca Sumon Bhattacharya Vladimir Dragalin Paul Gallo Michael Krams	3
+ PDF Chat	MMRM vs. LOCF: A Comprehensive Comparison Based on Simulation Study and 25 NDA Datasets	2009	Ohidul Siddiqui Hung Hung Robert T. O’Neill	3
+	A Multiple Testing Procedure for Clinical Trials	1979	Peter C. O’Brien Thomas R. Fleming	3
+	Practical Review and Comparison of Modified Covariance Estimators for Linear Mixed Models in Small‐sample Longitudinal Studies with Missing Data	2021	Masahiko Gosho Hisashi Noma Kazushi Maruo	3
+	ACCOUNTING FOR DROPOUT BIAS USING MIXED-EFFECTS MODELS	2001	Craig Mallinckrodt W. Scott Clark S.R. David	3
+ PDF Chat	Adaptive Sample Size Calculations in Group Sequential Trials	1999	Walter Lehmacher Gernot Wassmer	3
+ PDF Chat	Multivariate meta‐analysis: Potential and promise	2011	Dan Jackson Richard D. Riley Ian R. White	2
+	Bivariate analysis of sensitivity and specificity produces informative summary measures in diagnostic reviews	2005	Johannes B. Reitsma Afina S. Glas Anne WS Rutjes Rob Scholten Patrick M. Bossuyt Aeilko H. Zwinderman	2
+	Group sequential methods in the design and analysis of clinical trials	1977	Stuart J. Pocock	2
+	Multiple Imputation for Nonresponse in Surveys	1987	Donald B. Rubin	2
+	A Two-Stage Design for Choosing among Several Experimental Treatments and a Control in Clinical Trials	1989	Peter F. Thall Richard Simon Susan S. Ellenberg	2
+	Sequential designs for phase III clinical trials incorporating treatment selection	2003	Nigel Stallard Susan Todd	2
+	On closed testing procedures with special reference to ordered analysis of variance	1976	Ruth Marcus Eric Peritz K. R. Gabriel	2
+	Small sample GEE estimation of regression parameters for longitudinal data	2014	S. R. Paul Xuemao Zhang	2
+	Modification of Sample Size in Group Sequential Clinical Trials	1999	Lu Cui H. M. James Hung Sue‐Jane Wang	2
+	Outlier and influence diagnostics for meta-analysis	2010	Wolfgang Viechtbauer Mike W.‐L. Cheung	2
+	Choice of parametric accelerated life and proportional hazards models for survival data: asymptotic results.	2002	Jane L. Hutton Philip Monaghan	2
+	Futility Rules in Bioequivalence Trials with Sequential Designs	2013	Anders Fuglsang	2
+ PDF Chat	Robust Covariance Estimator for Small-Sample Adjustment in the Generalized Estimating Equations: A Simulation Study	2014	Masahiko Gosho Yasunori Sato Hisao Takeuchi	2
+	Asymptotic Inference with Incomplete Data	2013	Keiji Takai Yutaka Kano	2
+ PDF Chat	Drop-the-losers design: Binomial case	2008	Michael W. Sill Allan R. Sampson	2
+ PDF Chat	On the statistical model of the two-stage designs in bioequivalence assessment	2013	Vangelis Karalis Panos Macheras	2
+ PDF Chat	A Comparison of Methods for Treatment Selection in Seamless Phase II/III Clinical Trials Incorporating Information on Short-Term Endpoints	2014	Cornelia Ursula Kunz Tim Friede Nick Parsons Susan Todd Nigel Stallard	2
+	Two-stage selection and testing designs for comparative clinical trials	1988	Peter F. Thall Richard Simon Susan S. Ellenberg	2
+	Bias reduction of maximum likelihood estimates	1993	David Firth	2
+	An Insight into the Properties of a Two-Stage Design in Bioequivalence Studies	2013	Vangelis Karalis Panos Macheras	2
+	Combining different phases in the development of medical treatments within a single trial	1999	Péter Bauer Meinhard Kieser	2
+ PDF Chat	Fitting Linear Mixed-Effects Models Using<b>lme4</b>	2015	Douglas M. Bates Martin Mächler Benjamin M. Bolker Steve Walker	2
+	Adaptive Designs in Clinical Drug Development—An Executive Summary of the PhRMA Working Group	2006	Paul Gallo Christy Chuang‐Stein Vladimir Dragalin Brenda Gaydos Michael Krams José Cirı́aco Pinheiro	2
+	A Multiple Comparison Procedure for Comparing Several Treatments with a Control	1955	Charles W. Dunnett	2
+	A group‐sequential design for clinical trials with treatment selection	2008	Nigel Stallard Tim Friede	2
+	Sequential design approaches for bioequivalence studies with crossover designs	2007	Diane Potvin Charles E. DiLiberti Walter W. Hauck Alan Parr Donald J. Schuirmann Robert A. Smith	2
+ PDF Chat	Small-Sample Adjustments for Wald-Type Tests Using Sandwich Estimators	2001	Michael P. Fay Barry I. Graubard	2
+	A Seamless Phase II/III Design with Sample-Size Re-Estimation	2009	Wolfgang Bischoff Frank Miller	2
+	A General Definition of Residuals	1968	D. R. Cox E. J. Snell	2
+	Biased estimates of treatment effect in randomized experiments with nonlinear regressions and omitted covariates	1984	Mitchell H. Gail Sam Wieand Steven Piantadosi	2
+	Seamless phase II/III designs	2010	Nigel Stallard Susan Todd	2
+	Designing a seamless phase II/III clinical trial using early outcomes for treatment selection: An application in multiple sclerosis	2011	Tim Friede Nick Parsons Nigel Stallard S. Todd E. Valdes Marquez Jeremy Chataway Richard Nicholas	2
+	Adaptive Dunnett tests for treatment selection	2007	Franz Koenig Werner Brannath Frank Bretz Martin Posch	2
+	Effect of covariate omission in Weibull accelerated failure time model: A caution	2014	Masahiko Gosho Kazushi Maruo Yasunori Sato	2
+ PDF Chat	Likelihood based frequentist inference when data are missing at random	1998	M. G. Kenward Geert Molenberghs	2
+	A Comparison of Methods for Adaptive Treatment Selection	2008	Tim Friede Nigel Stallard	2