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Nested case-control (NCC) is a sampling method widely used for developing and evaluating risk models with expensive biomarkers on large prospective cohort studies. The biomarker values are typically obtained on a sub-cohort, consisting of…

统计方法学 · 统计学 2021-04-07 Qian M. Zhou , Xuan Wang , Yingye Zheng , Tianxi Cai

Molecular simulations can provide microscopic insight into the physical and chemical driving forces of complex molecular processes. Despite continued advancement of simulation methodology, model errors may lead to inconsistencies between…

化学物理 · 物理学 2016-02-12 Joseph F. Rudzinski , Kurt Kremer , Tristan Bereau

Inverse probability of treatment weighting (IPW) has been well applied in causal inference to estimate population-level estimands from observational studies. For time-to-event outcomes, the failure time distribution can be estimated by…

统计方法学 · 统计学 2025-05-13 Yuhao Deng , Rui Wang

Covariate imbalance between treatment groups makes it difficult to compare cumulative incidence curves in competing risk analyses. In this paper we discuss different methods to estimate adjusted cumulative incidence curves including inverse…

统计方法学 · 统计学 2024-12-04 Patrick van Hage , Saskia le Cessie , Marissa C. van Maaren , Hein Putter , Nan van Geloven

Individualized treatment regimes (ITRs) aim to improve clinical outcomes by assigning treatment based on patient-specific characteristics. However, existing methods often struggle with high-dimensional covariates, limiting accuracy,…

机器学习 · 统计学 2026-01-13 Sungtaek Son , Eardi Lila , Kwun Chuen Gary Chan

Conventional methods for analyzing composite endpoints in clinical trials often only focus on the time to the first occurrence of all events in the composite. Therefore, they have inherent limitations because the individual patients' first…

统计方法学 · 统计学 2022-11-29 Jialu Wang , Yeh-Fong Chen , Thomas Gwise

In this study, we address the challenge of survival analysis within heterogeneous patient populations, where traditional reliance on a single regression model such as the Cox proportional hazards (Cox PH) model often falls short.…

统计方法学 · 统计学 2025-04-15 Ahmad Talafha

In observational studies, treatments are typically not randomized and therefore estimated treatment effects may be subject to confounding bias. The instrumental variable (IV) design plays the role of a quasi-experimental handle since the IV…

统计方法学 · 统计学 2016-08-30 Lan Liu , Wang Miao , Baoluo Sun , James Robins , Eric Tchetgen Tchetgen

Observational epidemiological studies commonly seek to estimate the causal effect of an exposure on an outcome. Adjustment for potential confounding bias in modern studies is challenging due to the presence of high-dimensional confounding,…

统计方法学 · 统计学 2025-08-29 Susan Ellul , Stijn Vansteelandt , John B. Carlin , Margarita Moreno-Betancur

We study inference for censored survival data where some covariates are distorted by some unknown functions of an observable confounding variable in a multiplicative form. Example of this kind of data in medical studies is the common…

统计方法学 · 统计学 2020-06-03 Yanyan Liu , Yuanshan Wu , Jing Zhang , Haibo Zhou

The uncontrolled and unstructured growth of brain cells is known as brain tumor, which has one of the highest mortality rates among diseases from all types of cancers. Due to limited diagnostic and treatment capabilities, they pose…

机器学习 · 计算机科学 2024-04-02 PoTsang B. Huang , Muhammad Rizwan , Mehboob Ali

This paper proposes a new method for estimating conditional average treatment effects (CATE) in randomized experiments. We adopt inverse probability weighting (IPW) for identification; however, IPW-transformed outcomes are known to be…

计量经济学 · 经济学 2025-10-14 Mingqian Guan , Komei Fujita , Naoya Sueishi , Shota Yasui

Causal decomposition analysis aims to assess the effect of modifying risk factors on reducing social disparities in outcomes. Recently, this analysis has incorporated individual characteristics when modifying risk factors by utilizing…

机器学习 · 统计学 2025-09-16 Soojin Park , Suyeon Kang , Chioun Lee

The work includes a brief overview of the applications of the powerful and easy-to-perform method of Microwave Radiometry (MWR) for the diagnosis of various diseases. The main goal of this paper is to develop a method for diagnosing breast…

医学物理 · 物理学 2024-02-12 Alexander V. Khoperskov , Maxim V. Polyakov

Birth weight (BW) is a key indicator of neonatal health, with low birth weight (LBW) linked to increased mortality and morbidity. Early prediction of BW enables timely interventions; however, current methods like ultrasonography have…

Huntington disease (HD) is a neurodegenerative disease with progressively worsening symptoms. Accurately modeling time to HD diagnosis is essential for clinical trial design. Langbehn's model, the CAG-Age Product (CAP) model, the Prognostic…

This work presents a numerical investigation of different approximation techniques for the temporal weights used in the Dual Weighted Residual (DWR) method applied to a time-dependent convection-diffusion equation which is assumed to be…

数值分析 · 数学 2024-07-19 Marius Paul Bruchhäuser , Markus Bause

Survey instruments and assessments are frequently used in many domains of social science. When the constructs that these assessments try to measure become multifaceted, multidimensional item response theory (MIRT) provides a unified…

统计方法学 · 统计学 2025-01-08 Chenchen Ma , Jing Ouyang , Chun Wang , Gongjun Xu

When constructing parametric models to predict the cost of future claims, several important details have to be taken into account: (i) models should be designed to accommodate deductibles, policy limits, and coinsurance factors, (ii)…

统计方法学 · 统计学 2024-02-22 Chudamani Poudyal , Qian Zhao , Vytaras Brazauskas

The linear regression model is widely used in the biomedical and social sciences as well as in policy and business research to adjust for covariates and estimate the average effects of treatments. Behind every causal inference endeavor…

统计方法学 · 统计学 2024-04-23 Ambarish Chattopadhyay , Noah Greifer , Jose R. Zubizarreta
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