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Comparative effectiveness research frequently employs the instrumental variable design since randomized trials can be infeasible for many reasons. In this study, we investigate and compare treatments for emergency cholecystitis --…

应用统计 · 统计学 2023-07-13 Kenta Takatsu , Alexander W. Levis , Edward Kennedy , Rachel Kelz , Luke Keele

Consider sensitivity analysis for estimating average treatment effects under unmeasured confounding, assumed to satisfy a marginal sensitivity model. At the population level, we provide new representations for the sharp population bounds…

统计方法学 · 统计学 2022-09-26 Zhiqiang Tan

Population adjustment methods such as matching-adjusted indirect comparison (MAIC) are increasingly used to compare marginal treatment effects when there are cross-trial differences in effect modifiers and limited patient-level data. MAIC…

统计方法学 · 统计学 2022-05-12 Antonio Remiro-Azócar , Anna Heath , Gianluca Baio

Differential privacy is the leading mathematical framework for privacy protection, providing a probabilistic guarantee that safeguards individuals' private information when publishing statistics from a dataset. This guarantee is achieved by…

统计方法学 · 统计学 2025-08-19 Yuki Ohnishi , Jordan Awan

We propose a novel personalized concept for the optimal treatment selection for a situation where the response is a multivariate vector, that could contain right-censored variables such as survival time. The proposed method can be applied…

统计方法学 · 统计学 2022-10-03 Chathura Siriwardhana , K. B. Kulasekera , Somnath Datta

The distribution-free method of conformal prediction (Vovk et al, 2005) has gained considerable attention in computer science, machine learning, and statistics. Candes et al. (2023) extended this method to right-censored survival data,…

统计方法学 · 统计学 2025-06-04 Jing Qin , Jin Piao , Jing Ning , Yu Shen

Pragmatic trials increasingly define outcomes using real-world data such as electronic health records, where assessments are collected during routine care rather than at fixed timepoints. Consequently, these uncontrolled assessments may be…

Determining causal effects of interventions onto outcomes from real-world, observational (non-randomized) data, e.g., treatment repurposing using electronic health records, is challenging due to underlying bias. Causal deep learning has…

机器学习 · 计算机科学 2025-10-23 Shantanu Ghosh , Zheng Feng , Jiang Bian , Kevin Butler , Mattia Prosperi

Motivated by the proliferation of observational datasets and the need to integrate non-randomized evidence with randomized controlled trials, causal inference researchers have recently proposed several new methodologies for combining biased…

统计方法学 · 统计学 2023-09-14 Evan T. R. Rosenman , Francesca Dominici , Luke Miratrix

Contextual sensing and delivery of digital interventions to improve health outcomes have gained significant traction in behavioral and psychiatric studies. Micro-randomized trials (MRTs) are a common experimental design for obtaining…

统计方法学 · 统计学 2025-04-01 Jieru Shi , Zhenke Wu , Walter Dempsey

In a randomized control trial, the precision of an average treatment effect estimator can be improved either by collecting data on additional individuals, or by collecting additional covariates that predict the outcome variable. We propose…

统计方法学 · 统计学 2017-09-27 Pedro Carneiro , Sokbae Lee , Daniel Wilhelm

In this paper, we propose a data-adaptive empirical likelihood-based approach for treatment effect estimation and inference, which overcomes the obstacle of the traditional empirical likelihood-based approaches in the high-dimensional…

统计方法学 · 统计学 2020-12-15 Wei Liang , Ying Yan

Discrimination and calibration represent two important properties of survival analysis, with the former assessing the model's ability to accurately rank subjects and the latter evaluating the alignment of predicted outcomes with actual…

机器学习 · 计算机科学 2024-06-04 Shi-ang Qi , Yakun Yu , Russell Greiner

We consider a panel data analysis to examine the heterogeneity in treatment effects with respect to groups, periods, and a pre-treatment covariate of interest in the staggered difference-in-differences setting of Callaway and Sant'Anna…

计量经济学 · 经济学 2025-07-16 Shunsuke Imai , Lei Qin , Takahide Yanagi

When estimating causal effects, it is important to assess external validity, i.e., determine how useful a given study is to inform a practical question for a specific target population. One challenge is that the covariate distribution in…

统计方法学 · 统计学 2025-01-03 Zhenghao Zeng , Edward H. Kennedy , Lisa M. Bodnar , Ashley I. Naimi

Background Survival extrapolation is essential in the cost-effectiveness analysis to quantify the lifetime survival benefit associated with a new intervention, due to the restricted duration of randomized controlled trials (RCTs). Current…

统计方法学 · 统计学 2022-06-02 Zhaojing Che , Nathan Green , Gianluca Baio

In the social and health sciences, researchers often make causal inferences using sensitive variables. These researchers, as well as the data holders themselves, may be ethically and perhaps legally obligated to protect the confidentiality…

统计方法学 · 统计学 2024-08-28 Sharmistha Guha , Jerome P. Reiter

The restricted mean survival time (RMST) model has been garnering attention as a way to provide a clinically intuitive measure: the mean survival time. RMST models, which use methods based on pseudo time-to-event values and inverse…

统计方法学 · 统计学 2024-06-11 Keisuke Hanada , Masahiro Kojima

Estimating heterogeneous treatment effects (HTEs) is crucial for personalized decision-making. However, this task is challenging in survival analysis, which includes time-to-event data with censored outcomes (e.g., due to study dropout). In…

机器学习 · 计算机科学 2025-05-20 Dennis Frauen , Maresa Schröder , Konstantin Hess , Stefan Feuerriegel

Randomized clinical trials (RCTs) are widely considered the gold standard for evaluating the effectiveness of new treatments or interventions in drug development. Still, they may not be feasible in certain cases, such as with rare diseases…

统计方法学 · 统计学 2025-08-05 Di Ran , Fanni Zhang , Sima Shahsavari , Kristine Broglio , Alasdair Henderson , Binbing Yu
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