Close Menu
Ryan W . Walters, PhD

Associate Professor

Ryan Walters

Contact

School of Medicine
Department of Medicine
Clinical Research and Evaluative Sciences
Gastroenterology
Fellowship Program - Gastroenterology
Clinical Research

Ryan W . Walters, PhD

Associate Professor



Curriculum Vitae

Department

Clinical Research and Public Health

Position

Associate Professor

Articles

  • , Jagan, N., Morrow, L. E., Walters, R. W., Wallen, T., & Plambeck, R. W. (2020). The POSITIONED study: Prone positioning in non-ventilated COVID-19 patients: A retrospective analysis. Critical Care Explorations, 2, e0229. PMID: 33063033. Impact factor: not available (new journal).
    2, p. e0229 2020
  • The American Journal of Surgery
    Hiatt, M., Casey, M., Lynch, H. T., Snyder, C., Stacey, M., & Walters, R. W. Efficacy of proximal colectomy for surgical management of right-sided first colorectal cancer in Lynch syndrome mutation carriers. PMID: 29153248.
    216(1), p. 99-105 2018
  • Multivariate Behavioral Research
    Walters, R. W., Hoffman, L., & Templin, J. The power to detect and predict individual differences in intra-individual variability using the mixed-effects location-scale model. PMID: 29565691.
    53(3), p. 360-374 2018
  • Journal of Surgical Research
    Phillips, B., Turco, L., McDonald, D., Mause, E., & Walters, R. W. A subgroup analysis of penetrating injuries to the pancreas: 777 patients from the National Trauma Data Bank, 2010-2014. PMID: 29605023
    225, p. 131-141 2018
  • Journal of Trauma Acute Care Surg.
    Phillips, B., Turco, L., McDonald, D., Mause, A., & Walters, R. W. (2017). Penetrating injuries to the duodenum: An analysis of 879 patients from the National Trauma Data Bank, 2010-2014. PMID: 28658014.
    83(5), p. 810-817 2017
  • Psychology and Health
    Brannon, E. E., Cushing, C. C., Walters, R. W., Crick, C., Noser, A. E., & Mullins, L. M. (2018). Goal feedback from whom? A physical activity intervention using an N-of-1 RCT. PMID: 28988493.
    33(6), p. 701-712 2017
  • Journal of Bone Joint Surgery Am.
    Boese, C. K., Centeno, L., & Walters, R. W. Blood conservation using tranexamic acid is not superior to epsilon-aminocaproic acid following total knee arthroplasty. PMID: 28976426.
    99(19), p. 1621-1628 2017
  • Culture and Education
    Walters, R. W., & Hoffman, L. (2017). Applying the hierarchical linear model to longitudinal data.
    29(3), p. 666-701 2017
  • Clinical Medicine Insights: Oncology
    Krishnan, M., Ahmed, A., Walters, R. W., & Silberstein, P. T. (2017). Factors affecting adjuvant therapy in stage III pancreatic cancer: Analysis of the national cancer database. PMID: 28894395.
    11, p. 1-7 2017
  • Clinical Genitourinary Cancer
    Marsh, S., Walters, R. W., Silberstein, P. T. (2018). Survival outcomes of radical prostatectomy versus radiation therapy in intermediate risk prostate cancer: An NCDB study. PMID: 28869138.
    16(1), p. e39 - e46 2017
  • Journal of Pediatric Psychology
    Cushing, C. C., Mitchell, T. B., Bejarano, C. M., Walters, R. W., Crick, C. J., & Noser, A. E.  Bidirectional associations among subjective states and activity in adolescents: A mHealth pilot study. PMID: 28131985.
    42, p. 559-568 2017
  • Prostate Cancer and Prostatic Diseases
    Malouff, T., Mathy, N., Marsh, S., Walters, R. W., Silberstein, P. T. Trends in the use of radiation therapy for stage IIA prostate cancer from 2004-2013. PMID: 28398296.
    20, p. 334-338 2017
  • The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation
    Walters, R. W. (In Press). Cross-classified models. In B. B. Frey (Ed.), Thousand Oaks, CA: Sage.  2016
  • Burns
    Al Ashray, H. S., Mansour, G., Kalil, A. C., Walters, R. W., Vivekanandan, R. (2016). Risk of ventilator associated pneumonia (VAP) in burn patients with inhalation injury treated with high frequency percussive ventilation (HFPV) versus volume controlled ventilation (VCV): A systematic review.  Epub 2017 Jan 23. PMID:28126446 
    42, p. 1193-1200 2016
  • American Society for Artificial Internal Organs Journal
    Modrykamien, A. M., Hernandez, O. O., Im, Y., Walters, R. W., Schrader, C. L., Smith, L. E., et al. (2016). Mechanical ventilation in patients with the acute respiratory distress syndrome and treated with extracorporeal membrane oxygenation: Impact on hospital and 30-day post-discharge survival.
    62, p. 607-612 2016
  • Journal of Intensive Care Medicine
    Al Ashray, H. S., Abuzaid, A. S., Walters, R. W., Modrykamien, A. M. (2016). Effect of compliance with a nurse-led ICU-checklist on clinical outcomes in mechanically and non-mechanically ventilated patients.
    31, p. 252-257 2016
  • PLoS One
    Watts, A.*, Walters, R. W*, Hoffman, L., Templin, J. (2016). Intra-individual variability of physical activity in older adults with and without mild Alzheimer. *Co-first authors.
    11, p. e0153898 2016
  • Baylor University Medical Center Proceedings
    Patel, N., Baker, S. M., Walters, R. W, Kaja, A., Kandasamy, V., Abuzaid, A., et al. (2016). Serum hyperchloremia as a risk factor for acute kidney injury in patients with ST-segment elevation myocardial infarction undergoing percutaneous coronary intervention.
    29, p. 7-11 2016
  • Respiratory Care
    Modrykamien, A. M., Killian, L., Walters, R. W. (2016). Liberal manipulation of ventilator settings and its impact on tracheostomy rate and ventilator-free days.
    61, p. 30-35 2016
  • Encyclopedia of Adulthood and Aging
    Walters, R. W., Hoffman, L. (2016). Multilevel modeling. In S. K. Whitbourne (Ed.), London: Wiley-Blackwell., p. 1-5 2015
  • Journal of Smoking Cessation
    Burns, T. L., Mayer, A. E., Washington-Krauth, S. M., Walters, R. W, Arouni, A. J. (2014). Design and feasibility of a Hatha yoga intervention for smoking cessation.
    11, p. 1-10 2014
  • Drug Information: A guide for pharmacists
    Walters, R. W. (2014). The application of statistical analysis in the biomedical sciences. In P. M. Malone, K. L. Kier, J. E. Stanovich, & M. J. Malone (Eds.), New York, NY: McGraw-Hill Medical.
    5th edition, p. 351-458 2014
  • Journal of Pediatric Psychology
    Cushing, C. C., Walters, R. W., Hoffman, L. (2014). Aggregated N-of-1 randomized controlled trials: Modern data analytics applied to a clinically valid method of intervention effectiveness.
    39, p. 138-150 2014
  • Respiratory Care
    Gupta, P., Giehler, K., Walters, R. W., Meyerink, K., Modrykamien, A. M. (2014). The effect of a mechanical ventilation discontinuation protocol in patients with simple and difficult weaning: Impact on clinical outcomes.
    59, p. 170-177 2014
  • Journal of Pediatrics
    Rauner, R. R., Walters, R. W., Avery, M, Wanser, T. J. (2013). Evidence that aerobic fitness is more salient than weight status in predicting standardized math and reading outcomes in 4th-8th grade students.
    163, p. 344-348 2013
  • Annals of Allergy, Asthma & Immunology
    Sandhu, M. S., Dimov, V., Sandhu, A., Walters, R. W., Wichman, T., Casale, T. B. (2012). The use of the peroxisome proliferator-activated receptors & gamma;-agonist rosiglitazone to treat airway hyperreactivity.
    109, p. 75-77 2012
  • Drug Information: A guide for pharmacists
    Walters, R. W., Kier, K. L. (2011). The application of statistical analysis in the biomedical sciences. In P. M. Malone, K. L. Kier, J. E. Stanovich (Eds.), New York, NY: McGraw-Hill Medical.
    4th edition, p. 361-460 2011
  • American Journal of Pharmaceutical Education
    Monaghan, M. S., Cain, J. J., Malone, P. M., Chapman, T. A., Walters, R. W., Thompson, D. C., et al. (2011). Educational technology: Who is using what where? The development of an online database for pharmacy educators.
    75, p. 87 2011
  • Journal of Clinical Endocrinology and Metabolism
    Sai, A. J., Walters, R. W., Fang, X., Gallagher, J. C. (2011). Relationship between vitamin D, parathyroid hormone and bone health.
    96, p. 436-446 2011
  • International Journal of Cardiology
    Thambidorai, S. K., Deshmukh, A. R., Walters, R. W., Turner, P. D., Monaghan, M. S., Mooss, A. N., et al. (2011). Impact of statin use on heart failure mortality.
    147, p. 438-443 2011
  • American Journal of Pharmaceutical Education
    Foral, P. A., Turner, P. D., Monaghan, M. S., Walters, R. W., Merkel, J. J., Lipschultz, J. H., et al. (2010). Faculty and student expectations and perceptions of e-mail communication in a campus and distance doctor of pharmacy program.
    74, p. 191 2010
  • Currents in Pharmacy Teaching and Learning
    Packard, K. Sexson, E., Spangler, M.,Walters,R. W. (2010). A novel cardiovascular risk screening and health promotion service learning course.
    2, p. 228-237 2010
  • Journal of Pharmacy Practice
    Skrabal, M. Z., Jones, R. M., Walters, R. W., Nemire, R. E., Soltis, D. A., Kahaleh, A. A., et al. (2010). National survey of volunteer pharmacy preceptors: Effects of region, practice, setting, and population density on responses.
    23, p. 265-272 2010
  • American Journal of Pharmaceutical Education
    Hamilton, W. R., Padron, V. A., Turner, P. D., Walters, R. W., Alsharif, N., Griess, A. L., et al. (2009). An instructional model for teaching a nonprescription therapeutics course: Evaluating six years of experience.
    73, p. 131 2009
  • Diabetes Spectrum
    Stading, J., Herrmann, J., Walters, R. W., Destache, C., Chock, A. The impact of pharmacist intervention on diabetes patients in an ambulatory setting.
    22, p. 241-246 2009
  • The American Journal of Surgery
    Hiatt, M., Casey, M., Lynch, H. T., Snyder, C., Stacey, M., Walters, R. W.(In Press). Efficacy of proximal colectomy for surgical management of right-sided first colorectal cancer in Lynch syndrome mutation carriers.
  • Psychology and Health
    Brannon, E. E., Cushing, C. C., Walters, R. W., Crick, C., Noser, A. E., Mullins, L. M. (In Press). Goal feedback from whom? A physical activity intervention using an N-of-1 RCT.
  • Clinical Genitourinary Cancer
    Marsh, S., Walters, R. W., Silberstein, P. T. (In Press). Survival outcomes of radical prostatectomy versus radiation therapy in intermediate risk prostate cancer: An NCDB study.
  • Journal of Trauma Acute Care Surg.
    Phillips, B., Turco, L., McDonald, D., Mause,A.,Walters, R. W. (2017). Penetrating injuries to the duodenum: An analysis of 879 patients from the National Trauma Data Bank, 2010-2014.PMID:28658014
    83 (5), p. 810-817
  • Culture and Education
    Walters, R. W. Hoffman, L. (2017). Applying the hierarchical linear model to longitudinal data.
    29(3), p. 666-701
  • Clinical Medicine Insights: Oncology
    Krishnan, M., Ahmed, A., Walters, R. W.; Silberstein, P. T. (2017). Factors affecting adjuvant therapy in stage III pancreatic cancer: Analysis of the national cancer database.
    11, p. 1-7
  • The Journal of Bone and Joint Surgery
    Boese, C. K., Centeno, L.,Walters, R. W. (2017). Blood conservation using tranexamic acid is not superior to epsilon-aminocaproic acid following total knee arthroplasty.
    99(19), p. 1621-1628
  • Prostate Cancer and Prostatic Diseases
    Malouff, T., Mathy, N., Marsh, S., Walters, R. W., Silberstein, P. T. (2017). Trends in the use of radiation therapy for stage IIA prostate cancer from 2004-2013.
    20, p. 334-338
  • Journal of Pediatric Psychology
    Cushing, C. C., Mitchell, T. B., Bejarano, C. M.,Walters, R. W., Crick, C. J., Noser, A. E. (2017). Bidirectional associations among subjective states and activity in adolescents: A mHealth pilot study.
    42, p. 559-568
  • Drug Information: A guide for pharmacists
    Walters, R. W. The application of statistical analysis in the biomedical sciences. In P. M. Malone, and M. J. Malone (Eds.), New York, NY: McGraw-Hill Education.
    6th Edition

Publications

  • Mulivariate Behavior Research
    Walters, R. W., Hoffman, L., Templin, J., & Watts, A. (2015, October). The power to detect and predict scale-model random intercept variance in the mixed-effects location-scale model. 
    50, p. 737 2015

Presentations

  • Impact of Anemia on In-Hospital Mortality of Heart Failure Patients : A National Database Analysis. Jhand, A., Guddeti, R., Ahmad, A., Thandra, A., Walters, R., Andukuri, V., Alla, V., Smer, A. American College of Cardiology Conference, New Orleans, LA. 2019
  • Economic Impact of Anemia on Heart Failure Hospitalizations: A National Inpatient Sample Analysis. Jhand, A., Ahmad, A., Guddeti, R., Thandra, A., Walters, R., Andukuri, V., Alla, V., Smer, A. American College of Cardiology Conference, New Orleans, LA. 2019
  • Jhand, A. S., Dhaliwal, A., Thandra, A., Walters, R. W., Rangray, R., Singh, S., et al. Impact of timing of paracentesis on readmission rates in patients with spontaneous bacterial peritonitis: Analysis of National Readmission Database. Poster presented at the 2018 American College of Gastroenterology annual meeting, Philadelphia, PA. 2018
  • Ali, M., Zitterkopf, Z., Aly, A., Walters, R. W., Mironov, A., & Stavas, J. Ruptured symptomatic cerebral artery aneurysms versus un-ruptured asymptomatic aneurysms: Is there a protective effect of long-term aspirin use against aneurysm rupture? Oral presentation given at the 15th annual meeting of the Society of Neuro-Interventional Surgery, San Francisco, CA. 2018
  • Potthoff, M., Guck, T., Walters, R. W., Doll, J., Carrico, C., Jensen, G., et al. Cultivating collaboration: Building a successful collaborative care model in an RVU clinical environment. Poster presented at the 2018 Nexus Summit of the National Center for Interprofessional Practice and Education, Minneapolis, MN. 2018
  • Kassim, T., Hall, A., Walters, R. W., Gapp, J., Buddam, A., Abdalla, A., et al. Utility of early esophagogastroduodenoscopy in patients with gastro-esophageal variceal bleeding: Analysis of a national database. Poster presented at 2018 Digestive Disease Week, Washington, DC. 2018
  • Gapp, J., Hall, A., Walters, R. W., Kassim, T., Chandra, S., Jahann, D., et al. Recent trends of incidence and healthcare utilization in acute pancreatitis: A nationwide study. Poster presented at 2018 Digestive Disease Week, Washington, DC. 2018
  • Buddam, A., Walters, R. W., Mukherjee, S., & Vivekanandan, R. Incidence of pancreatitis and graft failure resulting from pancreatitis after pancreas transplantation: A descriptive study using UNOS database. Poster presented at 2018 Digestive Disease Week, Washington, DC. 2018
  • Machain, J., Walters, R.W., Bhavsar, S., Buaisha, H. M., Kizer, R., & Reddymasu, S. Utility of endoring-assisted colonoscopy in endoscopists with a baseline high adenoma detection rate: Updated data. Poster presented at 2018 Digestive Disease Week, Washington, DC. 2018
  • Kassim, T., Hall, A., Walters, R.W., Gapp, J., Buddam, A., Ahmed, D., et al. Recent trends in performance of early esophagogastroduodenoscopy in patients with non-variceal gastrointestinal bleeding: A nationwide study. Poster presented at 2018 Digestive Disease Week, Washington, DC. 2018
  • Stewart, N., Walters, R. W., Mokhlesi, B., & Arora, V. Risk of sleep disorders in hospitalized patients with obstructive lung disease: An observational study. Poster presented at SLEEP 2018, Baltimore, MD. 2018
  • VanDerhoef, D., Omid, S., Walters, R. W., Weston, S., Walton, M., & Varman, M. Vaccine intervention on a college campus to increase HPV vaccination rates. Poster presented at the 15th annual immunize Nebraska conference, Omaha, NE. 2018
  • Satish, M., Walters, R. W., & Alla, V. M. Trends in usage and impact of echocardiography in patients hospitalized with syncope. Poster presented at the 2018 American College of Physicians internal medicine meeting, New Orleans, LA. 2018
  • Thandra, A., Urja, P., Jhand, A., Parekh, J., Balmuri, A. R., Walters, R. W., et al. Congestive heart failure (CHF) readmissions in teaching versus non-teaching hospitals. Poster presented at the 2018 annual meeting of the Society of General Internal Medicine, Denver, CO. 2018
  • Satish, M., Walters, R. W., Aurit, S. J., White, M. Incidence of procedure-specific complications with endovascular vs. open bypass repair in PAD patients with type II diabetes. Poster presented at the Society for Cardiovascular Angiography and Interventions (SCAI) 2018 Scientific Sessions, San Diego, CA. 2018
  • Thandra, A., Jhand, A., Parekh, J., Balmuri, A., Bellamdonda, P., Walters, R. W., et al. The effect of atrial fibrillation on early outcomes in patient’s undergoing trans aortic valve replacement (TAVR) using the National Inpatient Sample (NIS) database. Poster presented at the Society for Cardiovascular Angiography and Interventions (SCAI) 2018 Scientific Sessions, San Diego, CA. 2018
  • Sitenga, J., Aird, G., Ahmed, A., Walters, R. W., & Silberstein, P. T. Socioeconomic status and survival in patients with melanoma. Oral presentation at the 2018 annual meeting of the American Academy of Dermatology, San Diego, CA. 2018
  • Ahmed, A., Sitenga, J., Aird, G., Walters, R. W., & Silberstein, P. T. Chemotherapy use in the elderly for stage IV pancreatic cancer: An NCDB analysis. Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 2018
  • Satish, M., Aurit, S. J., & Walters, R. W.  Time to surgery in colorectal cancer: Predictors and association with survival—an analysis of the National Cancer Database (NCDB). Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 2018
  • Chan, A., Masuda, Z. K., Walters, R. W., Silberstein, P. T., & Aurit, S. J. Impact of hospital teaching status on stage I pancreatic cancer survival. Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 2018
  • Cabri, A., Thompson, K., Shipley, S., Frerichs, C., Walters, R. W. (2017, December). Effectiveness of a vancomycin dosing nomogram in achieving target trough concentrations. Poster presented at the 2017 American Society of Heath-System Pharamcists annual meeting, Orlando, FL.  2017
  • Satish, M., Walters, R. W., & Silberstein, P. T. Clinicopathological predictors of axillary lymph node metastasis in early breast cancer patients. Poster presented at the 2017 San Antonio Breast Cancer Symposium, San Antonio, TX. 2017
  • Luo, A., Dethlefsen, M., Walters. R. W., & Weber, W. Retrospective analysis of the safety of 4-factor prothrombin complex concentrate in warfarin and non-warfarin patients. Poster presented at the 2017 American Society of Heath-System Pharmacists annual meeting, Orlando, FL. 2017
  • Boateng, A. K., Christensen, K., & Walters, R. W.  Evaluation of pharmacist and physician managed warfarin therapy in an academic medical center. Poster presented at the 2017 American Society of Heath-System Pharmacists annual meeting, Orlando, FL 2017
  • Turco, L., Phillips, B., Walters, R. W., McDonald, D., Wagner, M., Cornell, D., et al. (2017, October). The Tiger Country Series: Penetrating pancreaticoduodenal injuries, an analysis of 145 patients from the National Trauma Data Bank (NTDB) 2010-2014. e-Poster presented at the 2017 Clinical Congress of the American College of Surgeons, San Diego, CA. 2017
  • Satish, M., Walters, R. W., Alla, V. M. (2017, October). Trends in usage and impact of echocardiography in patients hospitalized with syncope. Poster presented at the 2017 American College of Physicians Nebraska Chapter, Omaha, NE. 2017
  • Gupta, V., Anathanarayanan, M., Walters, R. W., Vivekanandan, R. (2017, October). Health disparities affecting mortality after lung transplant: A retrospective analysis using UNOS database. Oral presentation presented at the CHEST 2017 annual meeting, Toronto, Ontario, Canada. 2017
  • Au, T. H., Malesker, M. A., Hilleman, D. E., Walters, R. W., Wichman, C. S., Morrow, L. E. (2014, October). A retrospective analysis of dexmedetomidine use for alcohol withdrawal syndrome in critical care patients. Abstract presented at the CHEST 2014 annual meeting, Austin, TX. 2017
  • Satish, M., Walters, R. W., Silberstein, P. T. (2017, September). Comorbidity and survival with receipt of adjuvant immunotherapy in stage III melanoma: An analysis of the National Cancer Database (NCDB). Poster presented at the 13th annual meeting of the Association of VA Hematology/Oncology, Denver, CO. 2017
  • Bhavsar, S., Buaisha, H. M., Machain-Palacio, J. G., Walters, R. W., Kizer, R., Reddymasu, S. (2017, May). Utility of endoring-assisted colonoscopy in edoscopists with a baseline high adenoma detection rate. Poster presented at the 2017 Digestive Disease Week forum, Chicago, IL. 2017
  • Kukrety, S., Gupta, V., Parekh, J., Walters, R. W., Anathanarayanan, M., Vivekanadan, R. (2017, May). Post-transplant lymphoproliferative disorder after lung transplant: A descriptive study of the UNOS (United Network for Organ Sharing) database. Oral presentation at the 2017 annual conference of the American Thoracic Society, Washington, DC. 2017
  • Diab, O., Theertham, A. K., Krishnan, M., Chintalacheruvu, L., Zook, N., Walters, R. W., Vivekanandan, R. (2017, April). Incidence of colorectal cancer following lung or heart transplant: A descriptive study using the UNOS database. Poster presented at the 2017 Society of General Internal Medicine annual meeting, Washington, DC. 2017
  • Urja, P., Anugula, D., Gujjula, N. R., Parekh, J., Kumar, J., Walters, R. W., et al. (2017, April). CMV Donor recipient serostatus and mortality rate based on age, sex, or anti-thymocyte immunoglobulin (ATG) immunosuppressive therapy: A retrospective study utilizing United Network for Organ Sharing (UNOS) database for heart-lung transplantation. Poster presented at the 2017 Quality of Care and Outcomes Research scientific sessions, Arlington, VA. 2017
  • Diab, O., Krishnan, M., Theertham, A. K., Chintalacheruvu, L., Gharzai, L. A., Walters, R. W., et al. (2017, March). Incidence of breast cancer following lung or heart transplant: A descriptive study using the UNOS database. Poster presented at the 34th annual Miami Breast Cancer Conference, Miami, FL. 2017
  • Park, Y. A., Walters, R. W., Ahmed, A., Dionesotes, K., Siu, M., Silberstein, P. T. (2017, March). Survival differences following mastectomy or lumpectomy with or without adjuvant radiotherapy in stage III breast cancer: An NCDB analysis. Poster presented at the 34th annual Miami Breast Cancer Conference, Miami, FL. 2017
  • Belbase, R., Aggarwal, S., Walters, R. W., Alla, V. (2017, March). Impact of obesity on the outcomes of stress cardiomyopathy: An analysis of the National Inpatient Sample. Poster presented at the 66th annual scientific session and expo of the American College of Cardiology, Washington, DC. 2017
  • Urja, P., Theertham, A., Kumar, M., Zook, N., O'Neill, K., Belbase, R., et al. (2017, March). Trends and use of echocardiography in patients with staphylococcus aureus bacteremia: An analysis using the Nationwide Inpatient Sample (NIS) data. Poster presented at the 66th annual scientific session and expo of the American College of Cardiology, Washington, DC. 2017
  • Belbase, R., Aggarwal, S., Walters, R. W., Alla, V. (2017, February). Prevalence and impact of obstructive sleep apnea and mitral valve insufficiency in patients with diastolic heart failure. Poster presented at the 2017 Cardiovascular Research Technologies annual symposium, Washington, DC. 2017
  • Ahmed, A., Krishnan, M., Siu, M., Walters, R. W., & Silberstein, P. T. (2017, February). Immunotherapy and survival in stage IV melanoma: A National Cancer Database analysis. Poster presented at the ASCO-SITC Clinical Immuno-Oncology Symposium, Orlando, FL. 2017
  • Allen, J., Walters, R. W., Thoman, D. T., Smith, J. L. (2017, February). Fluctuating team science: Perceiving science as collaborative improves science motivation. Poster presented at the 2017 American Association for the Advancement of Science annual meeting. Boston, MA. 2017
  • Ahmed, A., Walters, R. W, Malouff, T. D., Krishnan, M., Jabbari, J., Silberstein, P. T. (2017, January). Adjuvant therapy in stage II pancreatic cancer: A National Cancer Database analysis. Poster presented at the 2017 Gastrointestinal Cancers Symposium, San Francisco, CA. 2017
  • Krishnan, M., Gharzai, L., Qurie, A., Diab, O., Narayanan, M. A., Vivekanandan, R., et al. (2017, January). Incidence of colorectal carcinoma following liver transplantation: A retrospective analysis using the United Network of Organ Sharing (UNOS) database. Poster presented at the 2017 Gastrointestinal Cancers Symposium, San Francisco, CA. 2017
  • Ahmed, A., Walters, R. W., Tahseen, A. I., Silberstein, S. T. (2017, January). The association between insurance status and survival in patients with stage III colon cancer. Poster presented at the 2017 Gastrointestinal Cancers Symposium, San Francisco, CA. 2017
  • Jabbari, J., Ahmed, A., Walters, R. W., & Silberstein, S. T. (2017, January). Surgical intervention in early-stage pancreatic adenocarcinoma. Poster presented at the 2017 Gastrointestinal Cancers Symposium, San Francisco, CA. 2017
  • Ahmed, A., Walters, R. W., Malouff, T. D., Chintalacheruvu, L. M., Silberstein, P. T. (2017, January). Multi-agent and single-agent chemotherapy in stage IV pancreatic cancer: An NCDB analysis. Poster presented at the 2017 Gastrointestinal Cancers Symposium, San Francisco, CA. 2017
  • Anthone, J., Cabri, A., Walters, R. W., Destache, C.,Vivekanandan, R. (2016, December). Impact of pharmacist-led education on prescribing habits for acute treatment of suspected sexually transmitted infections (STIs) in an academic medical center emergency department (ED). Poster presented at IDWeek 2016, New Orleans, LA. 2016
  • Malouff, T., Marsh, S., Walters, R. W., & Silberstein, P. (2016, September). Trends in the use of radiation therapy for Stage IIA prostate cancer from 2004-2013: A retrospective analysis using the National Cancer Database (NCDB). Poster presented at the 58th American Society for Radiation Oncology annual meeting. Boston, MA. 2016
  • Malouff, T., Walters, R. W., Marsh, S., Silberstein, P. (2016, September). Comparison of external bean radiation therapy (EBRT) techniques on survival in Stage IIA prostate cancer. Poster presented at the 58th American Society for Radiation Oncology annual meeting. Boston, MA 2016
  • Malouff, T., Marsh, S., Walters, R. W., Silberstein, P. (2016, September). Long-term survival by method of brachytherapy in Stage IIA prostate cancer: A National Cancer Database (NCDB) analysis. Poster presented at the 58th American Society for Radiation Oncology annual meeting. Boston, MA. 2016
  • Aggarwal, S., Alla, V., Walters, R. W., Loomba, R., Mooss, A., Hunter, C. (2016, August). Contemporary trends of hospitalizations for acute decompensated heart failure in the United States from 2008 to 2012. Presented at the 2016 European Society of Cardiology (ESC) Congress annual meeting. Rome, Italy. 2016
  • Marsh, S., Walters, R. W.,; Silberstein, P. T. (2016, June). Overall survival in stage II prostate cancer after radiation or surgical therapy. Poster presented at the American Society of Clinical Oncology annual meeting, Chicago, IL. 2016
  • Mitchell, D. W., Ham, J. M., Walters, R. W., Graves, B. L., Fallone, M. D, Mizer, M. D., et al. (2016, May). The relationship between anticipatory heart rate and response latency on the delayed matrch to sample task. Poster presented at the 28th Association for Psychological Sciences annual convention, Chicago, IL. 2016
  • Boese, C. K., Centeno, L., Weis, M., Walters, R. W., Baker, R., Harris, M., Cooley, B., & Gallo, T. (2016, April). Comparison of tranexamic acid and epsilon-aminocaproic acid in managing blood loss after total knee arthroplasty. Poster presented at the 2016 annual meeting of the Mid-America Orthopedic Association, Bonita Springs, FL.  2016
  • Cushing, C. C., Walters, R. W, Bejarano, C. M., Mitchell, T. B. (2016, April). Daily hedonic hunger as a predictor of dietary behavior: What can mHealth assessment tell us about the appetite-behavior link? Symposium given at the 2016 annual conference of the Society of Pediatric Psychology, Atlanta, GA. 2016
  • Noser, A., Cushing, C. C., Walters, R. W., Amaro, C., Bejarano, C. (2016, April). Individual variability in daily physical activity: The role of social support. Poster presented at the 2016 annual conference of the Society of Pediatric Psychology, Atlanta, GA. 2016
  • Burns, T., Washington-Krauth, S., Walters, R. W, Arouni, A. (2016, March). Assessing the impact of vaping on current e-cigarette users's; blood pressure, heart rate, and carbon monoxide levels in comparison to the impact of cigarette smoking in current smokers. Poster presented at the 2016 annual meeting of the Society for Research on Nicotine & Tobacco, Chicago, IL. 2016
  • Boese, C. K., Centeno, L., Weis, M., Walters, R. W., Baker, R., Harris, M., Cooley, B., Gallo, T. (2016, March). Tranexamic acid and epsilon-aminocaproic acid to reduce blood loss following total knee arthroplasty. Paper presented at the 2016 annual meeting of the American Academy of Orthopaedic Surgeons, Orlando, FL. 2016
  • Boese, C. K., Centeno, L., Walters, R. W., Cooley, B., Scherrer, B. (2015, March). Impact of intravenous ketorolac on complications after total knee arthroplasty. Poster presented at the 2015 Orthopedic Research Society annual meeting, Las Vegas, NV 2015
  • Washington-Krauth, S. M., Burns, T. L., Walters, R. W., Arouni, A. J. (2015, February). Changes in lung function over time after initiation of e-cigarette use. Paper presented at the 2015 Society for Research on Nicotine and Tobacco annual meeting, Philadelphia, PA 2015
  • Burns, T. L., Washington-Krauth, S. M., Walters, R. W., Arouni, A. J. (2015, February). Salivary cotinine levels over the first three months of e-cigarette use. Poster presented at the 2015 Society for Research on Nicotine and Tobacco annual meeting, Philadelphia, PA. 2015
  • Templin, J., Hoffman, L., Sullivan, M., Walters, R. W. (2014, March). Heterogeneous variance classification models for psychiatric assessment survey data. Paper presented at the 2014 annual meeting of the International Biometric Society, Eastern North American Region, Baltimore, MD. 2014
  • Stevens, M., Stokes, J., Walters, R. W., Schatz, M., Casale, T. B. (2014, March). Rates of comorbidities are related to level of asthma control. Poster presented at the 2014 American Academy of Allergy Asthma and Immunology annual meeting, San Diego, CA. 2014
  • Stokes, J., Stevens, M., Walters, R. W., Schatz, M.,Casale, T. B. (2014, March). Rates of comorbidities are related to level of asthma severity. Poster presented at the 2014 American Academy of Allergy Asthma and Immunology annual meeting, San Diego, CA. 2014
  • Christensen, K. J., Monaghan, M. S., Walters, R. W.,Chapman, T. A. (2013, July). Delivery preference and student perception of lecture capture impact in a doctor of pharmacy curriculum. Poster presented at the 2013 American Association of Colleges of Pharmacy annual meeting, Chicago, IL. 2013
  • Walters, R. W., Hoffman, L., Templin, J. (2013, April). The effects of interdependent data on item calibration. Multimedia presentation at the 2013 National Council on Measurement in Education annual meeting, San Francisco, CA. 2013
  • DelasAlas, H., Zhu, N., Tu, Y., Walters, R. W., Casale, T. B. (2013, April). Relationship of airway hyperresponsiveness and RGS2 expression in smokers. Poster presentation at the 2013 American Academy of Allergy Asthma and Immunology annual meeting, San Antonio, TX. 2013
  • Zhu, N., Berra, A., Zhu, Z., Stokes, C., Tu, Y., Walters. R. W., Casale, T. B. (2013, February). Effects of cigarette smoke exposure on RGS2 expression and airway hyperresponsiveness. Poster presented at the 2013 American Academy of Allergy Asthma and Immunology annual meeting, San Antonio, TX. 2013
  • Elward, K. S., Casale, T. B., Pace, W., Schatz, M., Walters, R. W., Turner, P. D. (2013, February). Comparison of characteristics of asthma patients seeking care from specialists versus primary care physicians. Poster presented at the 2013 American Academy of Allergy Asthma and Immunology annual meeting, San Antonio, TX. 2013
  • Schatz, M., Casale, T. B., Pace, W., Walters, R. W., Turner, P. D., Elward, K. S. (2013, February). Characteristics of asthma visits to specialists compared to primary care physicians. Poster presented at the 2013 American Academy of Allergy Asthma and Immunology annual meeting, San Antonio, TX. 2013
  • Casale, T. B., Elward, K. S., Pace, W., Turner, P. D., Walters, R. W., Schatz, M. (2013, February). Characteristics of asthma patients seeking specialist care. Poster presentation at the 2013 American Academy of Allergy Asthma and Immunology annual meeting, San Antonio, TX. 2013
  • Razdan-Jonsson, P., Stokes, J., Turner, P. D., Walters, R. W., Busse, W. W., Kline, J., Ballas, Z. K., Casale, T. B. (2012, March). Relationship between ragweed specific IgE and acute allergic events during ragweed rush immunotherapy (RIT). Poster presentation at the 2012 American Academy of Allergy Asthma & Immunology annual meeting, Orlando, FL. 2012
  • Monaghan, M. S., Cain, J. J., Malone, P. M., Chapman, T., Walters, R. W., Thompson, D. C. (2011, July). Technology issues in the learning environment: Emerging solutions. Poster presentation at the 2011 American Association of Colleges of Pharmacy annual meeting, San Antonio, TX. 2011
  • Laughlin, A., Potthoff, M., Schwartz, M., Synowiecki, B., Yager, A., Walters, R. W. (2011, July). A healthy living project. Oral presentation at the 22nd Annual Honor Society of Nursing, Sigma Theta Tau International Nursing Research Congress, Cancun, Mexico. 2011
  • Stading, J., Walters, R. W., Chock, A., Kuhlmann, V., Messer, J. (2010, December). Impact of pharmacist intervention on monitoring in long term oral amiodarone therapy in the outpatient setting. Poster presentation at the 45th American Society of Health-Systems Pharmacists Midyear Clinical Meeting and Exhibition, Anaheim, CA. 2010
  • Laughlin, A., Potthoff, M., Schwartz, M., Synowiecki, B., Walters, R. W., Yager, A. (2010, October). A healthy living project. Podium presentation at the 84th Annual School Health Conference of the American School Health Association, Kansas City, MO. 2010
  • Anazia, T., Hill-Taylor, D., Walters, R. W., Sakowski, H., Maio, A. (2010, October). Impact of ethnicity on diabetic health outcomes in an academic internal medicine clinic. Poster presented at the 33rd annual Society of General Internal Medicine meeting, Minneapolis, MN. 2010
  • Foral, P. A., Merkel, J. J., Turner, P. D., Lenz, T. L., Monaghan, M. S., Walters, R. W. (2010, October). Email communication: Faculty and students expectations and perceptions of accessibility and response time. Poster presented at the 2010 American College of Clinical Pharmacy annual meeting, Austin, TX. 2010
  • Anthone, J. M., Walters, R. W., Christensen, K. J. (2009, December). Changes in heart rate following multiple-dose therapy with inhaled beta-2 agonists in hospitalized patients. Poster presented at the 44th Midyear Clinical Meeting and Exhibition of the American Society of Health-System Pharmacists, Las Vegas, NV. 2009
  • Merkel, J. J., Foral, P. A., Turner, P. D., Lenz, T. L., Monaghan, M. S.,Walters, R. W. (2009, July). Email vs. face-to-face: Faculty and students’ perceptions of approachability and comfort level. Poster presented at the 2009 American Association of Colleges of Pharmacy Meeting, Boston, MA. 2009
  • Packard, K. A., Spangler, M. L., Sexson, E., Lust, W. E., Walters, R. W.(2009, July). Impact of cardiovascular risk screening and health promotion service learning course. Poster presented at the 2009 American Association of Colleges of Pharmacy Meeting, Boston, MA 2009
  • Tilleman, J., Coover, K., Begley, K., Ryan-Haddad, A., Augustine, S., Walters, R. W., Nguyen, T., Fujita, L.,Thieman, C. (2009, July). Mobile learning via podcasts to enhance medication therapy management training for student pharmacists. Poster presented at the 2009 American Association of Colleges of Pharmacy Meeting, Boston, MA. 2009
  • Hamilton, W. R., Padron, V. A., Turner, P. D., Walters, R. W., Alsharif, N. Z. (2009, June). Long-term assessment of course modifications. Podium presentation at the 2009 National Carnegie Academy for the Scholarship of Teaching and Learning (CASTL) Institute, Omaha, NE. 2009
  • Anthone, J. M., Christensen, K. J., Walters, R. W. (2009, May). Changes in heart rate following multiple-dose therapy with inhaled beta-2 agonists in hospitalized patients. Podium presentation at the 2009 Midwest Pharmacy Residents Conference, Omaha, NE. 2009
  • Coover, K., Decker, C., Walters, R. W, Havermann, S. (2009, March). Pharmacist managed anticoagulation therapy in long-term care and assisted living residents. Poster presented at the 13th Annual St. Albert’s Day Research Forum, Omaha, NE 2009
  • Thambidorai, S. K., Deshmukh, A. R., Walters, R. W., Turner, P. D., Hunter, C. B., Mooss, A. N., Esterbrooks, D. J., Mohiuddin, S. M. (2008, November). Utility of statins in heart failure: Analysis of 10510 patients. Oral presentation at the 2008 American Heart Association Conference: Scientific Sessions, New Orleans, LA. 2008
  • Foral, P. A., Merkel, J. J., Turner, P. D., Lenz, T. L., Monaghan, M. S.,Walters, R. W. (2008, October). Email vs. face-to-face: Faculty and students’ perceptions of tone and content. Poster presented at the 2008 American College of Clinical Pharmacy annual meeting, Louisville, KY. 2008
  • Turner, P. D., Walters, R. W., Monaghan, M. S. (2008, June). Evaluating graduate performance: Outcomes assessment facilitated through an integrated data warehouse. Poster presented at the 2008 American Association of Colleges of Pharmacy Meeting, Chicago, IL. 2008
  • Skrabal, M. Z., Jones, R. M.,Walters, R. W., Tuner, P. D., Nemire, R. E., Assemi, M., Boyle, C. J., Kahaleh, A. A., Soltis, D. A., Hritcko, P. M., Allen, R. E. (2008, June). Volunteer preceptor opinions regarding experiential teaching: Why do pharmacists precept and what is most challenging? Poster presented at the 2008 American Association of Colleges of Pharmacy Meeting, Chicago, IL. 2008
  • Monaghan, M. S., Turner, P. D., Jones, R. M., Chapman, T., Lenz, T. L., Walters, R. W. (2008, June). Are personal digital assistants (PDAs) being used on advanced pharmacy practice experiences? An exploratory study in a dual pathway program. Poster presented at the 2008 American Association of Colleges of Pharmacy Meeting, Chicago, IL. 2008
  • Walters, R. W., Mitchell, D. W., Werner, W. C. (2008, May). The relationship between reaction time and intelligence revisited. Poster presented at the 20th Annual Association for Psychological Science Convention, Chicago, IL. 2008
  • Walters, R. W., Edler, J. R., Werner, W. C., Rowell, L. R., Cosby, J. E. (2007, April). Reaction time and intelligence revisited: Reaction time as an indicator of cognitive processing. Poster presented at the 11th Annual College of Health and Human Services Student Research Symposium, Springfield, MO. 2007
  • Ahmed, A., Sitenga, J., Aird, G., Walters, R. W., Silberstein, P. T. (2018, January). Chemotherapy use in the elderly for stage IV pancreatic cancer: An NCDB analysis. Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 
  • Satish, M., Aurit, S., Walters, R. W. (2018, January). Time to surgery in colorectal cancer: Predictors and association with survival—an analysis of the National Cancer Database (NCDB). Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 
  • Chan, A., Masuda, Z. K., Walters, R. W., Silberstein, P. T., Aurit, S. J. (2018, January). Impact of hospital teaching status on stage I pancreatic cancer survival. Poster presented at the 2018 Gastrointestinal Cancers Symposium, San Francisco, CA. 
  • Satish, M., Walters, R. W., Silberstein, P. T. (2017, December). Clinicopathological predictors of axillary lymph node metastasis in early breast cancer patients. Poster presented at the 2017 San Antonio Breast Cancer Symposium, San Antonio, TX.