activity
20192026
most citedConfidence interval for the AUC of SROC curve and some related methods using bootstrap for meta-analysis of diagnostic accuracy studies

44 citations · 81 across the 4 of their papers we have counts for

collaborators

6 papers

stat.AP2026

Distributional Flexibility under Box-Cox Normality: A Theoretical and Empirical Evaluation of the Power-Normal Distribution

Kazushi Maruo, Yusuke Yamaguchi, Ryota Ishii +2

Methods based on Box-Cox models have recently been developed for inference on clinically interpretable treatment effects in clinical trials. These methods model marginal outcome di…

stat.ME2026

Validity of MMRM-based hypothesis testing under missing-not-at-random mechanisms

Kazushi Maruo, Ryota Ishii, Yusuke Yamaguchi +3

In randomized clinical trials with longitudinal continuous outcomes, missing-not-at-random (MNAR) missingness often motivates conservative alternatives to mixed models for repeated…

stat.ME2026

A flexible framework for treatment effect inference in longitudinal clinical studies with skewed outcomes

Kazushi Maruo, Ryota Ishii, Yusuke Yamaguchi +3

Longitudinal continuous outcomes in clinical trials are commonly analyzed using mixed models for repeated measures (MMRM) under normality assumptions. However, many clinical outcom…

stat.ME2026

Modification and extension of the Bayesian clinical trial design using external data for single-arm and hybrid-controlled trials

Wataru Murasaki, Tomohiro Ohigashi, Ryota Ishii +2

Limited patient availability complicates sample size determination in pediatric clinical trials. Although Bayesian methods incorporating external data offer a solution, rigorously…

stat.AP2020★ 44 cited

Confidence interval for the AUC of SROC curve and some related methods using bootstrap for meta-analysis of diagnostic accuracy studies

Hisashi Noma, Yuki Matsushima, Ryota Ishii

The area under the curve (AUC) of summary receiver operating characteristic (SROC) curve is a primary statistical outcome for meta-analysis of diagnostic test accuracy studies (DTA…

stat.ME2019★ 37 cited

Outlier detection and influence diagnostics in network meta-analysis

Hisashi Noma, Masahiko Gosho, Ryota Ishii +2

Network meta-analysis has been gaining prominence as an evidence synthesis method that enables the comprehensive synthesis and simultaneous comparison of multiple treatments. In ma…