The Hull Research Team has contributed to advancing the health of Kentuckians through groundbreaking studies and publications, community engagement, a mobile app encouraging healthy eating practices, and more.

CHEW (Children Eating Well) App Usability Study

Grant # 2017-68001-34846 / 2017-68001-26352 USDA

Our team has developed the Children Eating Well (CHEW) mobile app for low-income families, which aims to increase purchasing of healthy foods and improve overall diet quality of preschool-aged participants by providing easy, practical ways for parents to increase consumption of healthy foods. The app provides healthy recipes, meal planning, quizzes, goal setting, and goal tracking features and tools to help low-income families improve their children's diet quality through validated nutrition education and tools. The target users for the app are low income families with 2-5 year-old children, many of whom are eligible for public assistance programs such as: WIC, Head Start, SNAP, Medicaid, and others.

The purpose of the usability study was to gather user testing feedback and stakeholder input into the development of the CHEW app, enhancement of app features. The purpose of the intervention study is to assess the efficacy of the CHEW app on improving child dietary intake, obesity risk score, and child feeding strategies. In addition, we will assess barriers, facilitators, and costs of implementation.

Increasing HPV Vaccination in Community-Based Pediatric Practices

Grant # R01CA207401

HPV causes 6 cancers, most of which can be prevented with the HPV vaccine. Low HPV vaccination rates reflect an implementation gap, in which most healthcare providers have adopted HPV vaccination guidelines but do not implement them with sufficient fidelity and consistency to produce optimal benefits. To address the implementation gap, we have examined the short- and long-term clinical and cost effectiveness of an evidence-based multi-component, multi-level intervention in the real-world setting of 21 diverse community-based, private pediatric practices within a pediatric network.

2021 Kentucky Cancer Needs Assessment

Dr. Hull’s research team contributed to the 2021 Kentucky Cancer Needs Assessment (KY CNA) conducted by the UK Markey Cancer Center Community Impact Office and a steering committee of community partners. The purpose of the KY CNA is to tell the story of cancer in Kentucky. Combining data and community perspectives, this story describes how social determinants of health, behaviors and biology intersect to produce the current state of cancer burden and disparities in Kentucky, and it highlights opportunities to rewrite the story. The KY CNA combined data from the Kentucky Cancer Registry with multiple existing data sources, plus focus groups with lay community members from diverse demographic groups across Kentucky.

As a final step to the KY CNA, Dr. Hull’s research team led a process called “concept mapping” to gather community stakeholder input on prioritizing Kentucky’s numerous cancer-related needs and potential strategies for addressing them. This process resulted in identifying priority focus areas and strategies to inform development of the next Kentucky Cancer Action Plan, the strategic plans of individual organizations, collaborative research, health policy, and other future initiatives.

Implementation of School-Entry Policies for Human Papillomavirus Vaccination

Grant # R01CA232743, National Cancer Institute (Dr. Vivian Cólon-López, Principal Investigator)

Dr. Hull contributes as co-investigator on this grant led by Dr. Vivian Cólon-López at the University of Puerto Rico Cancer Center. School-entry requirements are an evidence-based strategy for increasing immunization rates. While 49 states require Tdap and 26 require meningococcal vaccine, in March 2017, Puerto Rico became the fifth U.S. state or territory to adopt an HPV vaccine school-entry policy, requiring it for sixth graders starting in August 2018.

The goal of this study is to enhance understanding of geographic variation in HPV vaccine policies and outcomes across U.S. states and territories, while taking advantage of the timely opportunity to study the implementation and impact of the new school-entry HPV vaccine policy in Puerto Rico. Findings from this effort can inform states/territories considering adopting HPV vaccination policies and future implementation of these policies. The specific aims are to: Identify barriers and facilitators to implementation of the new HPV vaccine school-entry policy in Puerto Rico, Evaluate the impact of the new school-entry policy on HPV vaccination in Puerto Rico, and Understand geographic variation in the dissemination, implementation, and outcomes of HPV vaccine school-entry policies across U.S. states and territories.


Learn more about the specific studies Dr. Hull's research team has conducted involving a variety of topics.

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