Yi Liu

College of Sciences

Works (6)

Updated: January 23rd, 2026 07:03

2025 article

A Tutorial for Propensity Score Weighting Methods Under Violations of the Positivity Assumption

Liu, Y., Wang, Y., Gao, Y., Poteat, T., & Matsouaka, R. A. (2025, November 27). Statistics in Medicine.

By: Y. Liu n, Y. Wang *, Y. Gao *, T. Poteat * & R. Matsouaka*

MeSH headings : Propensity Score; Humans; Computer Simulation; Nutrition Surveys; Models, Statistical; Data Interpretation, Statistical; Smoking / adverse effects; Smoking / blood; Female
topics (OpenAlex):
Source: NC State University Libraries
Added: November 28, 2025

2025 article

Assessing racial disparities in healthcare expenditure using generalized propensity score weighting

Liu, J., Liu, Y., Zhou, Y., & Matsouaka, R. A. (2025, March 7). BMC Medical Research Methodology.

By: J. Liu *, Y. Liu n, Y. Zhou * & R. Matsouaka *

author keywords: Non-manipulable group membership; Survey sample; Multinomial regression; Overlap weights; Average treatment effect on the treated
MeSH headings : Humans; Propensity Score; Healthcare Disparities / statistics & numerical data; Healthcare Disparities / ethnology; Health Expenditures / statistics & numerical data; Female; White People / statistics & numerical data; Male; Racial Groups / statistics & numerical data; Ethnicity / statistics & numerical data; Adult; Middle Aged; Hispanic or Latino / statistics & numerical data; Health Services Accessibility / statistics & numerical data; United States; Aged; White
topics (OpenAlex): Advanced Causal Inference Techniques; Healthcare Policy and Management; Health Systems, Economic Evaluations, Quality of Life
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UN Sustainable Development Goal Categories
Source: Web Of Science
Added: March 31, 2025

2025 journal article

COADVISE: covariate adjustment with variable selection in randomized controlled trials

Journal of the Royal Statistical Society Series A: Statistics in Society.

By: Y. Liu n, K. Zhu  n, L. Han * & S. Yang n 

topics (OpenAlex): Advanced Causal Inference Techniques; Statistical Methods and Inference; Obstructive Sleep Apnea Research
Sources: NC State University Libraries, NC State University Libraries, ORCID, Crossref
Added: November 29, 2025

2025 article

Social determinants of HIV status and viral load suppression among transgender women in South Africa: a cross-sectional analysis

Poteat, T., Liu, Y., Adams, D., Merwe, L. L.-A., Cloete, A., Howard, L. E., & McCarthy, J. (2025, July 26). AIDS Care.

By: T. Poteat *, Y. Liu n, D. Adams*, L. Merwe *, A. Cloete *, L. Howard *, J. McCarthy *

author keywords: Sex work; substance use; social determinants
MeSH headings : Humans; Cross-Sectional Studies; South Africa / epidemiology; Female; Adult; HIV Infections / epidemiology; HIV Infections / psychology; HIV Infections / drug therapy; HIV Infections / virology; Transgender Persons / statistics & numerical data; Transgender Persons / psychology; Viral Load; Male; Social Determinants of Health / statistics & numerical data; Middle Aged; Young Adult; Sex Work / statistics & numerical data; Ill-Housed Persons / statistics & numerical data; Surveys and Questionnaires; Socioeconomic Factors
topics (OpenAlex): HIV/AIDS Research and Interventions; LGBTQ Health, Identity, and Policy; Sex work and related issues
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
5. Gender Equality (OpenAlex)
Source: Web Of Science
Added: August 4, 2025

2024 article

Average treatment effect on the treated, under lack of positivity

Liu, Y., Li, H., Zhou, Y., & Matsouaka, R. A. (2024, September 9). Statistical Methods in Medical Research.

By: Y. Liu n, H. Li*, Y. Zhou * & R. Matsouaka *

author keywords: Propensity score; positivity; trimming; truncation; average treatment on the treated; overlap weighted average treatment effect on the treated
MeSH headings : Propensity Score; Humans; Monte Carlo Method; Models, Statistical; Treatment Outcome
topics (OpenAlex): Advanced Causal Inference Techniques; Statistical Methods and Inference; Statistical Methods and Bayesian Inference
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: September 23, 2024

2024 article

When does adjusting covariate under randomization help? A comparative study on current practices

Gao, Y., Liu, Y., & Matsouaka, R. (2024, October 26). BMC Medical Research Methodology.

By: Y. Gao *, Y. Liu n & R. Matsouaka *

author keywords: Randomized clinical trials; Average treatment effect; Covariate adjustment; Outcome regressions; Propensity score weighting; Augmented estimators
MeSH headings : Humans; Randomized Controlled Trials as Topic / methods; Randomized Controlled Trials as Topic / statistics & numerical data; Monte Carlo Method; Analysis of Variance; Models, Statistical; Computer Simulation; Data Interpretation, Statistical
topics (OpenAlex): Statistical Methods and Inference; Advanced Causal Inference Techniques; Statistical Methods and Bayesian Inference
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: November 12, 2024

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