Don Willis

Dr. Don Willis

Department of Internal Medicine, University of Arkansas Medical Sciences, Fayetteville, AR, USA
orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

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

Representative Publications

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2 July 2021 in Clinical and Translational Science
Verified
Journal Article
Open access
PDF file
DWDon Willis
Don Willis
JAJennifer Andersen
Jennifer Andersen
KBKeneshia Bryant‐Moore
Keneshia Bryant‐Moore
JSJames P. Selig
James P. Selig
CLChristopher R. Long
Christopher R. Long
PMPearl A. McElfish
Pearl A. McElfish
Understanding and minimizing coronavirus disease 2019 (COVID‐19) vaccine hesitancy is critical to population health and minimizing health inequities, which continue to be brought into stark relief by the pandemic. We investigate questions regarding vaccine hesitancy in a sample (n = 1205) of Arkansas adults surveyed online in July/August of 2020. We examine relationships among sociodemographics, COVID‐19 health literacy, fear of COVID‐19 infection, general trust in vaccines, and COVID‐19 vaccine hesitancy using bivariate analysis and a full information maximum likelihood (FIML) logistic regression model. One in five people (21,21.86%) reported hesitancy to take a COVID‐19 vaccine. Prevalence of COVID‐19 vaccine hesitancy was highest among Black/African Americans (50.00%), respondents with household income less than $25K (30.68%), some college (32.17%), little to no fear of infection from COVID‐19 (62.50%), and low trust in vaccines in general (55.84%). Odds of COVID‐19 vaccine hesitancy were 2.42 greater for Black/African American respondents compared to White respondents (p < 0.001), 1.67 greater for respondents with some college/technical degree compared to respondents with a 4‐year degree (p < 0.05), 5.48 greater for respondents with no fear of COVID‐19 infection compared to those who fear infection to a great extent (p < 0.001), and 11.32 greater for respondents with low trust in vaccines (p < 0.001). Sociodemographic differences in COVID‐19 vaccine hesitancy raise concerns about the potential of vaccine implementation to widen existing health disparities in COVID‐19 related infections, particularly among Black/African Americans. Fear of infection and general mistrust in vaccines are significantly associated with vaccine hesitancy.

4 October 2020 in Journal of Hunger & Environmental Nutrition
Verified
Journal Article
Closed access
KFKevin Fitzpatrick
Kevin Fitzpatrick
CHCasey Harris
Casey Harris
GDGrant Drawve
Grant Drawve
DWDon Willis
Don Willis
This research examines the intersection of social vulnerability, risk, and their impact on individual food insecurity odds during the COVID-19 pandemic. Data come from a national, post-stratification weighted sample of U.S. adults (n = 10,368). Logistic regression analysis confirms what we hypothesized – socially vulnerable, fearful, persons in poorer health, and those with higher levels of depressive and anxiety symptoms have higher food insecurity odds. Findings underscore the importance of redesigning food systems in the U.S. during health crises like the current one; alternative strategies to meet increased food needs in the face of a pandemic are discussed.

PMPearl A. McElfish
Pearl A. McElfish
RPRachel Purvis
Rachel Purvis
LJLaura P. James
Laura P. James
DWDon Willis
Don Willis
JAJennifer Andersen
Jennifer Andersen
(1) Background: Prior studies have documented that access to testing has not been equitable across all communities in the US, with less testing availability and lower testing rates documented in rural counties and lower income communities. However, there is limited understanding of the perceived barriers to coronavirus disease 2019 (COVID-19) testing. The purpose of this study was to document the perceived barriers to COVID-19 testing. (2) Methods: Arkansas residents were recruited using a volunteer research participant registry. Participants were asked an open-ended question regarding their perceived barriers to testing. A qualitative descriptive analytical approach was used. (3) Results: Overall, 1221 people responded to the open-ended question. The primary barriers to testing described by participants were confusion and uncertainty regarding testing guidelines and where to go for testing, lack of accessible testing locations, perceptions that the nasal swab method was too painful, and long wait times for testing results. (4) Conclusions: This study documents participant reported barriers to COVID-19 testing. Through the use of a qualitative descriptive method, participants were able to discuss their concerns in their own words. This work provides important insights that can help public health leaders and healthcare providers with understanding and mitigating barriers to COVID-19 testing.

1 December 2021 in Vaccines
Verified
Journal Article
Open access
PDF file
RPRachel S. Purvis
Rachel S. Purvis
EHEmily Hallgren
Emily Hallgren
RMRamey Moore
Ramey Moore
DWDon Willis
Don Willis
SHSpencer Cameron Hall
Spencer Cameron Hall
PMPearl A. McElfish
Pearl A. McElfish
The World Health Organization has identified vaccine hesitancy as a top health concern. Emerging research shows that those who are hesitant may still get vaccinated; however, little is known about those who say they are hesitant but still get vaccinated. Most people have high trust in several sources of COVID-19 information, and trust in certain information sources such as the Centers for Disease Control and Prevention and health care providers was associated with being vaccinated. This study explored trusted information sources among hesitant adopters in the United States with a survey respondents completed while waiting after receiving a COVID-19 vaccine dose. The study included (n = 867) respondents. The majority of respondents were female (60.21%); were between the ages of 18 and 44 years old (71.97%); and were diverse, with most identifying as White (44.54%) or Hispanic/Latinx (32.55%). Hesitant adopters reported multiple trusted sources of COVID-19 vaccine information, which can be grouped into four emergent subthemes: (1) Health care/Medical science, (2) Personal relationships, (3) News and social media, and (4) Individual/Myself. Some respondents expressed a distrust of all sources of COVID-19 vaccine information, despite receiving the vaccine, describing a lack of trust in traditional sources of information such as the mainstream media or government. This study contributes to the literature by documenting trusted sources of COVID-19 vaccine information among hesitant adopters in the United States. Findings provide important insights about respondents’ trusted sources of COVID-19 vaccine information that can inform future public health messaging campaigns intended to increase vaccine uptake among hesitant adopters.

7 April 2022 in Journal of Racial and Ethnic Health Disparities
Verified
Journal Article
Open access
PDF file
DWDon Willis
Don Willis
JAJennifer A. Andersen
Jennifer A. Andersen
BMBrooke E. E. Montgomery
Brooke E. E. Montgomery
JSJames P. Selig
James P. Selig
SSSumit K. Shah
Sumit K. Shah
PMPearl A. McElfish
Pearl A. McElfish
Early in the COVID-19 vaccine rollout, Black adults consistently reported more hesitancy than White adults, but few studies have examined variation in hesitancy among Black adults or its associations with racial discrimination. Data were collected from Black Arkansas residents age 18 and older (n = 350) between July 12th and July 30th, 2021, as part of a larger survey of Arkansans (N = 1500). Participants were recruited through random digit dialing of both landline and cell phones, with oversampling of Black and Hispanic residents. Respondents reported COVID-19 vaccine hesitancy, sociodemographic information, influenza vaccination history, pandemic-related experiences, and experiences of racial discrimination. Almost half (48.9%) of Black adults in Arkansas were not hesitant towards COVID-19 vaccines, while the remainder reported some level of hesitancy. Nearly a quarter were very hesitant (22.4%), while fewer reported being somewhat (14.0%) and a little (14.7%) hesitant. Using an ordered logistic regression with partial proportional odds, we find odds of COVID-19 vaccine hesitancy decreased as age and influenza vaccination increased. Odds of COVID-19 vaccine hesitancy were 1.70 times greater for Black adults who experienced the death of a close friend/family member due to COVID-19 and 2.61 times greater for individuals reporting discrimination with police or in the courts. Within-group analysis revealed nearly half of Black adults did not report any COVID-19 vaccine hesitancy and heterogeneity among those who were hesitant. Findings suggest there may be an important link between racial discrimination in the criminal justice system and COVID-19 vaccine hesitancy among Black adults.

15 January 2022 in Journal of Behavioral Medicine
Verified
Journal Article
Closed access
PDF file
DWDon Willis
Don Willis
JSJames P. Selig
James P. Selig
JAJennifer A. Andersen
Jennifer A. Andersen
SHSpencer Hall
Spencer Hall
EHEmily Hallgren
Emily Hallgren
PMPearl A. McElfish
Pearl A. McElfish