Yiyang Liu

Yiyang Liu,

Research Assistant Professor

Department: Department of Epidemiology
Business Phone: (352) 273-5468
Business Email: yliu26@ufl.edu

About Yiyang Liu

I see myself as an epidemiologist and data scientist specializing in HIV and substance use research. I have rich experience working with OneFlorida+ (OneFL) electronic health records (EHR) and contributed to several HIV-related projects using OneFL EHRs. In one of my first-authored papers, I have developed and validated a rule-based HIV computable phenotype algorithm that leverages the multi-domain structured electronic health record (EHR) data and has identified over 70k patients with confirmed HIV diagnoses. Building on this virtual HIV cohort, I have been awarded an industry fund as a primary investigator (PI) to examine long-acting HIV antiretroviral therapy uptake among people with HIV. Additionally, I have participated as a co-investigator on a UF Clinical and Translational Science Institute (CTSI) pilot grant and led efforts in one of the aims to identify and characterize PrEP users using OneFL EHRs. I am currently preparing an R34 grant aiming to build an EHR-based HIV prediction model to better identify patients who might benefit from PrEP, especially among women.

Teaching Profile

Courses Taught
2023
PHC6941 MPH Applied Practice Experience
2023
PHC7065 Advanced Skills in Epidemiological Data Management

Board Certifications

  • Great Teaching for New Faculty Certificate
    UF Center for Teaching Excellence

Research Profile

Open Researcher and Contributor ID (ORCID)

0000-0002-5519-3853

Areas of Interest
  • Alcohol and substance use
  • HIV
  • HIV Prevention
  • Mental Health
  • data science
  • electronic health records

Publications

2022
Longitudinal trajectories of HIV care engagement since diagnosis among persons with HIV in the Florida Ryan White program
AIDS and Behavior. 26(10):3164-3173 [DOI] 10.1007/s10461-022-03659-9. [PMID] 35362911.
2022
Testā€retest reliability of a new assessment to detect detailed temporal patterns of polysubstance use
International Journal of Methods in Psychiatric Research. 31(3) [DOI] 10.1002/mpr.1912. [PMID] 35684977.
2021
Associations amongst form of cocaine used (powder vs crack vs both) and HIV-related outcomes
Addictive Behaviors Reports. 14 [DOI] 10.1016/j.abrep.2021.100374. [PMID] 34938835.
2021
Cocaine and Marijuana Polysubstance Use and Cocaine Use Disorder: Investigating Mediated Effects through Patterns of Cocaine Use
Journal of Dual Diagnosis. 17(1):23-33 [DOI] 10.1080/15504263.2020.1849887. [PMID] 33300839.
2020
Exposure to Medicines in the Family Medicine Cabinet: Is It a Harbinger of Later Opioid Dependence?
Substance Use & Misuse. 55(10):1709-1715 [DOI] 10.1080/10826084.2020.1756856. [PMID] 32394779.
2020
Prescription Stimulant Use and Associated Risk Factors for Non-oral Use among 10 to 18 Year Olds
Journal of Psychoactive Drugs. 52(5):421-432 [DOI] 10.1080/02791072.2020.1795326.
2019
Motives for prescription stimulant use by patterns of non-medical use
Journal of Substance Use. 24(4):455-460 [DOI] 10.1080/14659891.2019.1604838. [PMID] 31814798.
2018
The importance of considering polysubstance use: lessons from cocaine research
Drug and Alcohol Dependence. 192:16-28 [DOI] 10.1016/j.drugalcdep.2018.07.025. [PMID] 30195242.

Grants

Apr 2023 ACTIVE
Artificial Intelligence and Counterfactually Actionable Responses to End HIV (AICARE-HIV)
Role: Co-Investigator
Funding: NATL INST OF HLTH NIAID
Nov 2022 ACTIVE
Interest and uptake of long-acting antiretroviral therapy (ART) among people with HIV in Florida
Role: Co-Project Director/Principal Investigator
Funding: MERCK AND COMPANY INC RES LAB
Aug 2022 ACTIVE
CODUS – HIV outcome quality measure evaluation and stigma
Role: Co-Investigator
Funding: FL DEPT OF HLTH via US HLTH RESOURCES AND SERV ADMN HIV/AIDS

Education

PhD in Epidemiology
2020 · University of Florida
Master of Public Health
2015 · Tulane University
Bachelor of Business Administration
2013 · Beijing University of Chinese Medicine

Contact Details

Phones:
Business:
(352) 273-5468
Emails:
Business:
yliu26@ufl.edu
Addresses:
Business Mailing:
PO Box 100231
GAINESVILLE FL 32610
Business Street:
2004 MOWRY RD
GAINESVILLE FL 32610