David Hollar, PhD, MS


  • BS, Biology (Honors), University of North Carolina at Chapel Hill
  • MS, Molecular Biology, Vanderbilt University
  • PhD, Curriculum and Teaching, University of North Carolina at Greensboro
  • Postdoctoral, Community Health, Boonshoft School of Medicine, Wright State University
  • Graduate Certificate, Public Health Entrepreneurship, UNC-Chapel Hill

Research Interest

Dr. Hollar’s research interests include health risk factors among people with disabilities and chronic disease, biogerontology, genetic epidemiology, maternal and child health, multivariate statistics, structural equation modeling, and geospatial analysis. His current research focuses on geospatial analyses of rural population health and structural equation models of cancer risk factors.

Selected Publications

  • Hollar, DW (2021). Allostatic Load, Mobility Disability, and Viral Effects in Cancer: A Structural Equation Model. Cancer Investigation. http://dx.doi.org/10.1080/07357907.2021.1993880
  • Hollar, D. (2017). Biomarkers of chondriome topology and function: Implications for the extension of healthy aging. Biogerontology, 18(2), 201-215. http://dx.doi.org/10.1007/s10522-016-9673-5
  • Hollar, D. (2017). Disability and Health Outcomes in Geospatial Analyses of Southeastern U.S. County Health Data. Disability and Health Journal, 10, 518-524.
  • Hollar, D. (2016). Validation of a new instrument to evaluate gradients of empathy. Journal of Psychoeducational Assessment, 35(4), 377-390. http://dx.doi.org/10.1177/0734282915623882
  • Hollar, D., Lewis, J. (2015). Heart age differentials and general cardiovascular risk profiles for persons with varying disabilities: NHANES 2001-2010. Disability and Health Journal, 8, 51-60. http://dx.doi.org/10.1016/j.dhjo.2014.07.007
  • Hollar, D. (2015). Evaluating the interface of health data and policy: applications of geospatial analysis to county-level national data. Children’s Health Care, 45(3), 266-285. http://dx.doi.org/10.1080/02739615.2014.996884
  • Hollar, D. & Rowland, J. (2015). Promoting health literacy for people with disabilities and clinicians through a teamwork model. Journal of Family Strengths, 15(2), Article 5. http://digitalcommons.library.tmc.edu/jfs/vol15/iss2/5
  • Hollar D, Fleming P, Moore KS, Runyan C, Knight ED, Villaveces A (2014). Attitudes & Effectiveness of Professional Programs for Primary Prevention of Violence: Exploratory Validation of the PREVENT Primary Prevention of Violence Self Assessment. International Journal of Injury Control and Safety Promotion, 21(1), 90-97.
  • Hollar, D, Paxton A, Fleming P (2013). Exploratory validation of the fruit and vegetable neophobia attitudes instrument among elementary grade students. Appetite, 60, 226-230.
  • Hollar, D. (2013). Cross-sectional patterns of allostatic load among persons with varying disabilities, NHANES: 2001-2010. Disability and Health Journal, 6, 177-187.

Click here to see the full list of Dr. Hollar’s work.


  • 5K07HD051546-05 Cross (PI) 1-MAR-2006 to 28-FEB-2012
    Redesigning and Enhancing Behavioral and Social Science Medical Student Curricula
    National Institutes of Health/National Institute on Child Health and Development
    A project to redesign and substantially strengthen teaching of the Behavioral and Social Sciences through all 4 years of the University of North Carolina at Chapel Hill Medical Student curriculum.
    Role: Co-Investigator
  • GSK Foundation UNC-Duke Roper (PI) 2006 to 2009
    Patient Safety Initiative: Development of Multidisciplinary Team Coordination Training Subproject: UNC-Duke Collaboration in Health Professions Teamwork Training Project
    A project to promote interdisciplinary teamwork training among medical and nursing students at UNC-Chapel Hill and Duke University, with an ultimate goal of improved patient safety.
    Role: Co-Investigator
  • AHRQ Grant #1 UC1HS16133-01 Lozzio (PI) 2005 to 2009
    Transforming Healthcare Quality through Information Technology (THQIT) Health Information Technology Implementation Grant – Improving Quality Care for Children with Special Needs. University of Tennessee Graduate School of Medicine.
    Role: Co-Investigator and Project Manager

Professional Involvement

  • American Association on Health and Disability
  • American Geophysical Union
  • American Public Health Association (Governing Council, 2019-2020)
  • International Genetic Epidemiology Society

Contact Dr. David Hollar