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Studies intended to estimate the effect of a treatment, like randomized trials, may not be sampled from the desired target population. To correct for this discrepancy, estimates can be transported to the target population. Methods for…

When estimating an effect of an action with a randomized or observational study, that study is often not a random sample of the desired target population. Instead, estimates from that study can be transported to the target population.…

In this work, blood pressure eleven years ahead is modeled using data from a longitudinal population-based health survey, the Trondelag Health (HUNT) Study, while accounting for missing data due to dropout between consecutive surveys (20-50…

The World Health Organization defines cardio-vascular disease (CVD) as "a group of disorders of the heart and blood vessels," including coronary heart disease and stroke (WHO 21). CVD is affected by "intermediate risk factors" such as…

机器学习 · 计算机科学 2023-05-04 Harish Chauhan , Nikunj Gupta , Zoe Haskell-Craig

This article focuses on measurement error in covariates in regression analyses in which the aim is to estimate the association between one or more covariates and an outcome, adjusting for confounding. Error in covariate measurements, if…

统计方法学 · 统计学 2019-10-16 Ruth H. Keogh , Jonathan W. Bartlett

The analysis of count data is commonly done using Poisson models. Negative binomial models are a straightforward and readily motivated generalization for the case of overdispersed data, i.e., when the observed variance is greater than…

统计方法学 · 统计学 2016-01-06 Christian Röver , Stefan Andreas , Tim Friede

Positivity violations, which occur when some subgroups either always or never receive a treatment of interest, pose significant challenges for causal effect estimation with observational data. Recent balancing weight methods have proved to…

统计方法学 · 统计学 2025-12-17 Martha Barnard , Jared D. Huling , Julian Wolfson

Missing data is a common problem in clinical data collection, which causes difficulty in the statistical analysis of such data. To overcome problems caused by incomplete data, we propose a new imputation method called projective resampling…

统计方法学 · 统计学 2021-06-17 Zishu Zhan , Xiangjie Li , Jingxiao Zhang

Electronic health records are a valuable data source for investigating health-related questions, and propensity score analysis has become an increasingly popular approach to address confounding bias in such investigations. However, because…

Measurement error arises commonly in clinical research settings that rely on data from electronic health records or large observational cohorts. In particular, self-reported outcomes are typical in cohort studies for chronic diseases such…

统计方法学 · 统计学 2021-02-08 Lillian A. Boe , Lesley F. Tinker , Pamela A. Shaw

Over the past few decades, statistical methods for causal inference have made impressive strides, enabling progress across a range of scientific fields. However, much of this methodological development has been confined to individual…

统计方法学 · 统计学 2025-09-30 Wenqi Shi , José R. Zubizarreta

Causally interpretable meta-analysis combines information from a collection of randomized controlled trials to estimate treatment effects in a target population in which experimentation may not be possible but covariate information can be…

统计方法学 · 统计学 2022-05-03 Jon A. Steingrimsson , David H. Barker , Ruofan Bie , Issa J. Dahabreh

Data collected in clinical trials are often composed of multiple types of variables. For example, laboratory measurements and vital signs are longitudinal data of continuous or categorical variables, adverse events may be recurrent events,…

统计方法学 · 统计学 2023-01-12 Tuo Wang , Rachel Zilinskas , Ying Li , Yongming Qu

Missing data is a common concern in health datasets, and its impact on good decision-making processes is well documented. Our study's contribution is a methodology for tackling missing data problems using a combination of synthetic dataset…

机器学习 · 计算机科学 2022-11-08 Gift Khangamwa , Terence L. van Zyl , Clint J. van Alten

The topic of this paper is prevalence estimation from the perspective of active information. Prevalence among tested individuals has an upward bias under the assumption that individuals' willingness to be tested for the disease increases…

统计方法学 · 统计学 2022-06-13 Ola Hössjer , Daniel Andrés Díaz-Pachón , Chen Zhao , J. Sunil Rao

Imbalanced data, where the positive samples represent only a small proportion compared to the negative samples, makes it challenging for classification problems to balance the false positive and false negative rates. A common approach to…

机器学习 · 统计学 2026-02-17 Pengfei Lyu , Zhengchi Ma , Linjun Zhang , Anru R. Zhang

Noncompliance and missing data often occur in randomized trials, which complicate the inference of causal effects. When both noncompliance and missing data are present, previous papers proposed moment and maximum likelihood estimators for…

统计方法学 · 统计学 2014-09-04 Hua Chen , Peng Ding , Zhi Geng , Xiao-Hua Zhou

Missing data is a common challenge in observational studies. Another challenge stems from the observational nature of the study itself. Here, propensity score analysis can be used as a technique to replicate conditions similar to those…

其他统计学 · 统计学 2025-10-08 Saghar Garayemi , Reza Ali Akbari Khoei , Sarah Friedrich

Health economic evaluations face the issues of non-compliance and missing data. Here, non-compliance is defined as non-adherence to a specific treatment, and occurs within randomised controlled trials (RCTs) when participants depart from…

应用统计 · 统计学 2019-02-26 Karla DiazOrdaz , Richard Grieve

Most practical data science problems encounter missing data. A wide variety of solutions exist, each with strengths and weaknesses that depend upon the missingness-generating process. Here we develop a theoretical framework for training and…

机器学习 · 计算机科学 2022-11-15 Jahan C. Penny-Dimri , Christoph Bergmeir , Julian Smith
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