A comparison of different methods to adjust survival curves for confounders

R Denz, R Klaaßen‐Mielke… - Statistics in Medicine, 2023 - Wiley Online Library
Treatment specific survival curves are an important tool to illustrate the treatment effect in
studies with time‐to‐event outcomes. In non‐randomized studies, unadjusted estimates can …

Bootstrap vs asymptotic variance estimation when using propensity score weighting with continuous and binary outcomes

PC Austin - Statistics in medicine, 2022 - Wiley Online Library
We used Monte Carlo simulations to compare the performance of asymptotic variance
estimators to that of the bootstrap when estimating standard errors of differences in means …

Addressing extreme propensity scores in estimating counterfactual survival functions via the overlap weights

C Cheng, F Li, LE Thomas, F Li - American Journal of …, 2022 - academic.oup.com
The inverse probability of treatment weighting (IPTW) approach is popular for evaluating
causal effects in observational studies, but extreme propensity scores could bias the …

Causal inference with spatio-temporal data: estimating the effects of airstrikes on insurgent violence in Iraq

G Papadogeorgou, K Imai, J Lyall… - Journal of the Royal …, 2022 - academic.oup.com
Many causal processes have spatial and temporal dimensions. Yet the classic causal
inference framework is not directly applicable when the treatment and outcome variables are …

Effect of intravenous antihypertensives on outcomes of severe hypertension in hospitalized patients without acute target organ damage

L Ghazi, F Li, M Simonov, Y Yamamoto… - Journal of …, 2023 - journals.lww.com
Background: Treatment of severe inpatient hypertension (HTN) that develops during
hospitalization is not informed by guidelines. Intravenous (iv) antihypertensives are used to …

Causal meta-analysis by integrating multiple observational studies with multivariate outcomes

S Guha, Y Li - Biometrics, 2024 - academic.oup.com
Integrating multiple observational studies to make unconfounded causal or descriptive
comparisons of group potential outcomes in a large natural population is challenging …

A flexible approach for causal inference with multiple treatments and clustered survival outcomes

L Hu, J Ji, RD Ennis, JW Hogan - Statistics in medicine, 2022 - Wiley Online Library
When drawing causal inferences about the effects of multiple treatments on clustered
survival outcomes using observational data, we need to address implications of the …

Propensity score weighting methods for causal subgroup analysis with time-to-event outcomes

S Yang, R Zhou, F Li… - Statistical Methods in …, 2023 - journals.sagepub.com
Evaluating causal effects of an intervention in pre-specified subgroups is a standard goal in
comparative effectiveness research. Despite recent advancements in causal subgroup …

Restricted mean survival time to estimate an intervention effect in a cluster randomized trial

FL Vilain–Abraham, E Tavernier… - … Methods in Medical …, 2023 - journals.sagepub.com
For time-to-event outcomes, the difference in restricted mean survival time is a measure of
the intervention effect, an alternative to the hazard ratio, corresponding to the expected …

Enhancing Statistical Validity and Power in Hybrid Controlled Trials: A Randomization Inference Approach with Conformal Selective Borrowing

K Zhu, S Yang, X Wang - arXiv preprint arXiv:2410.11713, 2024 - arxiv.org
Randomized controlled trials (RCTs) are the gold standard for causal inference but may lack
power because of small populations in rare diseases and limited participation in common …