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
2023-2024
PHC7065 Advanced Skills in Epidemiological Data Management
2024
PHC6971 Research for Master’s Thesis
2024
PHC6945 Public Health Practicum
2024
PHC6940 Master of Public Health Capstone
Board Certifications
-
Great Teaching for New Faculty CertificateUF 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
2024
Comorbidity Burden and Health Care Utilization by Substance use Disorder Patterns among People with HIV in Florida
AIDS and Behavior.
28(7):2286-2295
[DOI] 10.1007/s10461-024-04325-y.
[PMID] 38551720.
2024
Demographics, Trends, and Clinical Characteristics of HIV Pre-Exposure Prophylaxis Recipients and People Newly Diagnosed with HIV from Large Electronic Health Records in Florida
AIDS Patient Care and STDs.
38(1):14-22
[DOI] 10.1089/apc.2023.0220.
[PMID] 38227279.
2024
Sequencing hour-level temporal patterns of polysubstance use among persons who use cocaine, alcohol, and cannabis: A back-translational approach.
Drug and alcohol dependence.
258
[DOI] 10.1016/j.drugalcdep.2024.111272.
[PMID] 38555662.
2024
Spatial and temporal analysis of HIV clinical outcomes in Florida reveals counties with persistent racial and ethnic disparities during 2012-2019.
BMC public health.
24(1)
[DOI] 10.1186/s12889-024-17944-w.
[PMID] 38459461.
2024
The Effect of Veteran Status and Chronic Pain on Past 30-Day Sedative Use Among Community-Dwelling Adult Males.
Journal of the American Board of Family Medicine : JABFM.
37(1):118-128
[DOI] 10.3122/jabfm.2023.230226R2.
[PMID] 38448239.
2023
Improved Post-Traumatic Stress Disorder Symptoms and Related Sleep Disturbances after Initiation of Medical Marijuana Use: Evidence from a Prospective Single Arm Pilot Study.
Medical cannabis and cannabinoids.
6(1):160-169
[DOI] 10.1159/000534710.
[PMID] 37965569.
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
Test‐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
Jul 2024
ACTIVE
AI-based Clinical decision support to idenTify wOmeN for HIV testing and PrEP in Florida (ACTION-HIV)
Role: Principal Investigator
Funding: NATL INST OF HLTH NIMH
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