Elizabeth Bast

Dr. Elizabeth Bast

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 November 2021 in The Lancet Infectious Diseases
Verified
Journal Article
Closed access
EBElizabeth Bast
Elizabeth Bast
FTFei Tang
Fei Tang
JDJason Dahn
Jason Dahn
APAna Palacio
Ana Palacio

11 April 2025 in Health Affairs Scholar
Verified
Journal Article
Closed access
DBDavid Pham Bui
David Pham Bui
EBElizabeth Bast
Elizabeth Bast
HTHanh Trinh
Hanh Trinh
AFAlexandra Fox
Alexandra Fox
TBTheodore S Z Berkowitz
Theodore S Z Berkowitz
DHDenise M Hynes
Denise M Hynes
Long COVID is a serious chronic illness that can present in many forms and impact daily functioning and quality of life. Without curative treatments, management of long COVID requires coordination and ongoing access to multidisciplinary care. Starting in 2020, the Veterans Health Administration (VHA), established a national network of Long COVID Clinics (LCCs). In this retrospective cohort study of 494 547 veterans with documented SARS-CoV-2 infection in the VHA from March 2020 to April 2022 (n = 494 547), we examined trends in ICD-10 U09.9 diagnosis code use for long COVID and LCC use in the VHA up to May 2024. Overall, 5.9% (n = 29 195) of patients in our cohort had a documented U09.9 code and 2% had at least 1 LCC visit. Among veterans with a U09.9 code, 17.4% (n = 5089) used LCCs. LCC use rates were low across all patient subgroups. LCCs were more available to veterans residing in the South census region (28% vs <7% use rate) than veterans in other regions. Developing evidence about LCC effectiveness and ensuring equitable access to LCCs within and beyond the VHA will be critical in meeting the evolving needs of people with long COVID.

21 March 2025 in Military Medicine
Verified
Journal Article
Closed access
EBElizabeth Bast
Elizabeth Bast
DJDylan Jester
Dylan Jester
APAna Palacio
Ana Palacio
Maxine H. KrengelMaxine H. Krengel
Maxine H. Krengel
MRMatthew Reinhard
Matthew Reinhard
JAJ Wesson Ashford
J Wesson Ashford
Gulf War Illness (GWI) is a condition that affects 30-40% of nearly 700,000 Veterans who were deployed to Operations Desert Shield/Storm/Sabre (ODS/S/S) between August 1990 and June 1991 and is characterized by a constellation of symptoms, including fatigue, mood/cognition, chronic pain, gastrointestinal (most frequently referred to as “irritable bowel syndrome”), respiratory, and skin issues. We review the development of various case definitions for GWI, as well as exposure theories. Despite heavy investment in research, both the pathophysiology and underlying cause of GWI remain areas of active inquiry. Similarities have previously been noted in symptomatology between GWI and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and more recently, long COVID (LC), a late effect of infection with the Severe Acute Respiratory Syndrome Corona Virus-2 (SARS-CoV-2). These conditions are discussed with respect to the similarities of their symptomatology and pathophysiology. Long COVID is a post-viral syndrome, and ME/CFS is widely considered to be likely post-infectious as well. This comparison leads to the proposal of the hypothesis that GWI may also be post-viral. Given the similarity of GWI and LC, it is possible that Veterans with GWI had an antecedent infection with a virus related to SARS-CoV-2, potentially the Middle East Respiratory Syndrome Coronavirus (MERS) or an ancestor of this virus. The MERS antibodies have been found in dromedary camels in Saudi Arabia since 1983 to the present, including the time of ODS/S/S. There is abundant evidence to support further investigation into this topic.

13 March 2024 in Healthcare
Verified
Journal Article
Open access
PDF file
MDMelanie Davis
Melanie Davis
BNBrian Neelon
Brian Neelon
JPJohn Pearce
John Pearce
DMDanira Medunjanin
Danira Medunjanin
EBElizabeth Bast
Elizabeth Bast
KHKelly J Hunt
Kelly J Hunt
While telemedicine infrastructure was in place within the Veterans Health Administration (VHA) healthcare system before the onset of the COVID-19 pandemic, geographically varying ordinances/closures disrupted vital care for chronic disease patients such as those with type 2 diabetes. We created a national cohort of 1,647,158 non-Hispanic White, non-Hispanic Black, and Hispanic veterans with diabetes including patients with at least one primary care visit and HbA1c lab result between 3.5% and 20% in the fiscal year (FY) 2018 or 2019. For each VAMC, the proportion of telehealth visits in FY 2019 was calculated. Two logistic Bayesian spatial models were employed for in-person primary care or telehealth primary care in the fourth quarter of the FY 2020, with spatial random effects incorporated at the VA medical center (MC) catchment area level. Finally, we computed and mapped the posterior probability of receipt of primary care for an “average” patient within each catchment area. Non-Hispanic Black veterans and Hispanic veterans were less likely to receive in-person primary care but more likely to receive tele-primary care than non-Hispanic white veterans during the study period. Veterans living in the most socially vulnerable areas were more likely to receive telehealth primary care in the fourth quarter of FY 2020 compared to the least socially vulnerable group but were less likely to receive in-person care. In summary, racial minorities and those in the most socially vulnerable areas were less likely to receive in-person primary care but more likely to receive telehealth primary care, potentially indicating a disparity in the impact of the pandemic across these groups.

14 May 2021 in International Journal of STD & AIDS
Verified
Journal Article
Closed access
PDF file
EBElizabeth Bast
Elizabeth Bast
SSSamantha Stonbraker
Samantha Stonbraker
MHMina Halpern
Mina Halpern
ELElizabeth Lowenthal
Elizabeth Lowenthal
RGRobert Gross
Robert Gross
Despite access to nationally supplied antiretroviral treatment, viral load suppression rates remain suboptimal in the Dominican Republic. Counseling and support services are available but mainly targeted to those identified as having the most need. At Clínica de Familia La Romana (CFLR) in La Romana, all patients undergo a structured baseline interview including exploration of expected barriers to care. We conducted a retrospective cohort study of a random sample of patients at CFLR with treatment initiation between 1 January 2015 and 1 December 2017 to determine if self-identified barriers to HIV care predict viral load suppression. Viral load suppression occurred in 63% of the 203 patients evaluated. Lack of food (n = 19) was significantly associated with lack of viral suppression (OR 3.0, 95% CI 1.14–7.87). Nondisclosure of HIV status (n = 24) showed evidence for a protective effect (OR 0.33; 95% CI 0.11–1.0). Further steps should be taken to address food insecurity as well as to understand associated barriers to care among individuals with food insecurity.

17 March 2023 in JMIR Preprints
Verified
Preprint
Open access
SGSandra Garcia-Davis
Sandra Garcia-Davis
APAna Palacio
Ana Palacio
EBElizabeth Bast
Elizabeth Bast
LPLauren S Penney
Lauren S Penney
EFErin Finley
Erin Finley
SDStuti Dang
Stuti Dang
BACKGROUND Keeping older veterans with high needs and high risk (HNHR) who are at risk of long-term institutional care safely in their homes for as long as possible is a Department of Veterans Affairs priority. Older veterans with HNHR face disproportionate barriers and disparities to engaging in their care, including accessing care and services. Veterans with HNHR often have poor ability to maintain health owing to complicated unmet health and social needs. The use of peer support specialists (peers) is a promising approach to improving patient engagement and addressing unmet needs. The Peer-to–Patient-Aligned Care Team (Peer-to-PACT; P2P) intervention is a multicomponential home visit intervention designed to support older veterans with HNHR to age in place. Participants receive a peer-led home visit to identify unmet needs and home safety risks aligned with the age-friendly health system model; care coordination, health care system navigation, and linking to needed services and resources in collaboration with their PACT; and patient empowerment and coaching using Department of Veterans Affairs whole health principles. OBJECTIVE The primary aim of this study is to evaluate the preliminary effect of the P2P intervention on patient health care engagement. The second aim is to identify the number and types of needs and unmet needs as well as needs addressed using the P2P needs identification tool. The third aim is to evaluate the feasibility and acceptability of the P2P intervention delivered over 6 months. METHODS We will use a quantitative-qualitative convergent mixed methods approach to evaluate the P2P intervention outcomes. For our primary outcome, we will conduct an independent, 2-tailed, 2-sample t test to compare the means of the 6-month pre-post differences in the number of outpatient PACT encounters between the intervention and matched comparison groups. Qualitative data analysis will follow a structured rapid approach using deductive coding as well as the Consolidated Framework for Implementation Research. RESULTS Study enrollment began in July 2020 and was completed in March 2022. Our sample size consists of 114 veterans: 38 (33.3%) P2P intervention participants and 76 (66.7%) matched comparison group participants. Study findings are expected to be published in late 2023. CONCLUSIONS Peers may help bridge the gap between PACT providers and veterans with HNHR by evaluating veterans’ needs outside of the clinic, summarizing identified unmet needs, and developing team-based solutions in partnership with the PACT. The home visit component of the intervention provides eyes in the home and may be a promising and innovative tool to improve patient engagement. INTERNATIONAL REGISTERED REPORT DERR1-10.2196/46156