physician photo

Cassandra Arroyo Johnson, MS, PhD

Assistant Professor of Surgery

Learn more about Dr. Arroyo Johnson's research.

Graduate School

PhD, Biostatistics (Minors: Social and Behavioral Determinants of Health, Theoretical Statistics), Harvard University, Cambridge, MA, 2003

NIH/NIDDK F31 Minority Predoctoral Fellowship, 1999-2003

MS, Biostatistics, Harvard School of Public Health, Boston, MA, 2000

Initiative for Minority Student Development (IMSD) Predoctoral Fellowship, National Institute of Health Fellowship, 1998-1999

Post Doctoral Education

NIH/NHLBI T32 Postdoctoral Fellowship in Cardiovascular Social Epidemiology, Social Epidemiology Research Center, Morehouse School of Medicine, 2003-2006

Honors and Awards

University Faculty Award for Excellence in Service Nomination, Georgia Southern University, 2010

Faculty Award for Excellence in Service, Jiann-Ping Hsu College of Public Health, Georgia Southern University, 2009

Robert Wood Johnson Foundation New Connections Symposium Travel Award, 2008

Undergraduate Advisor of the Year, State of Georgia, Zeta Phi Beta Sorority, Inc., 2007

Thirty Most Meritorious Abstracts Award, Annual Conference on Chronic Disease Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 2005

Volunteer Recognition Award for Big Sister TEAM Mentoring, Big Sisters Association of Greater Boston, 2002

Distinction in Teaching Award, Department of Biostatistics, Harvard School of Public Health, 2001

Daniel J. Pinkett Award for Excellence in Mathematics, University of Maryland Eastern Shore, 1998

Most Outstanding Student, Department of Mathematics and Computer Science, University of Maryland Eastern Shore, 1998

Outstanding UMES Woman, National Women’s History Month, University of Maryland Eastern Shore, 1998

1st Place Student Poster (Biology), Morgan State University Undergraduate Science Research Symposium, 1998

3rd Place Student Presentations (Math/Physics), Beta Kappa Chi National Honor Society Annual Conference, 1998

Outstanding Student Honoree (GPA higher than 3.5), University Honors Convocation, University of Maryland Eastern Shore, 1995-1999

Richard Carr Scholarship Recipient, State of New Jersey, 1994

Research Interests

Dr. Johnson's expertise and interests reflect the multidisciplinary nature of public health. She has training in biostatistics and epidemiology, with specific emphasis on social epidemiology, health disparities and community-based participatory research. She has led and collaborated on several externally funded community-based participatory research and evaluation projects in chronic disease prevention and management and use secondary data for research. Her areas of expertise include: measurement and analysis of physical activity data; social and behavioral determinants of chronic disease; health disparities; application of community-based participatory methods for health equity; diabetes prevention; and impact of the built environment on healthful living. Dr. Johnson also has experience facilitating community-academic partnerships for health and developing the infrastructure for community-based participatory research with minority and underserved populations. She has been actively involved in increasing the role of minority and underserved populations in research through community forums on health, community coalition building, and training community members on research.


Contact Information

660 S. Euclid Ave.
Campus Box 8100
St. Louis, MO 63110
(314) 286-0383

Selected Publications

Arroyo-Johnson C, Allen ML, Colditz GA, Hurtado GA, Davey CS, Sanders Thompson VL, Drake BF, Svetaz MV, Rosas-Lee M, Goodman MS. A Tale of Two Community Networks Program Centers: Operationalizing and Assessing CBPR Principles and Evaluating Partnership Outcomes. Prog Community Health Partnersh. 2015;9
Suppl:61-9. doi: 10.1353/cpr.2015.0026. PubMed PMID: 26213405.

Ackermann N, Goodman MS, Gilbert K, Arroyo-Johnson C, Pagano M. Race, law, and health: Examination of 'Stand Your Ground' and defendant convictions in Florida. Soc Sci Med. 2015 Oct;142:194-201. doi: 10.1016/j.socscimed.2015.08.012. Epub 2015 Aug 13. PubMed PMID: 26313247.

Dehal A, Garrett T, Tedders SH, Arroyo C, Afriyie-Gyawu E and Zhang J. Body mass index and death rate of colorectal cancer among a national cohort of U.S. adults. Nutrition and Cancer, 2011; 63(8): 1218-25.

Wolfe AR, Arroyo C, Tedders SH, Li Y, Dai Q and Zhang J. Dietary protein and protein-rich food in relation to severe depressed mood: A 10 year follow-up of a national cohort. Progress in Neuro-Psychopharmacology & Biological Psychiatry, 35(1): 232-238, 2011.

Li Y, Dai Q, Tedders SH, Arroyo C, Zhang J. Legume Consumption and Severe Depressed Mood, the Modifying Roles of Gender and Menopausal status. Public Health Nutrition, 13: 1198-1206, 2010.

Cosgrove R, Arroyo C, Warren J, Zhang J. Impaired cognitive functioning in overweight children and adolescents. AgroFOOD industry hi-tech. 20(1): 48-51, 2009.

Morris JS, Arroyo C, Coull B, Ryan LM, Herrick R, Gortmaker SL.  Using wavelet-based functional mixed models to characterize population heterogeneity in accelerometer profiles: A case study. J Am Statistical Assoc 101(476): 1352-1364, 2006.

Duncan DT, Quarells RC, Din-Dzietham R, Arroyo C, Davis SK. Physical activity and incident hypertension among blacks: no relationship? [letter to the editor]. Prev Chronic Dis [3(3)] 2006 Jul. Available from: URL:

Arroyo C, Hu FB, Kawachi I, Ryan LM, Colditz G, Speizer F, Manson JM: Depressive symptoms and risk of type 2 diabetes mellitus in women. Diabetes Care 27:129-133, 2004.

Editorial Positions

Reviewer, Journal of Rural Health, 2011-

Reviewer, Journal of Immigrant and Minority Health, 2011-

Reviewer, Jossey-Bass Publishers, 2010-

Reviewer, Archives of General Psychiatry, 2006-

Reviewer, Ethnicity & Disease, 2005-

Expert Reader in Epidemiology – Expert Review Committee, Health Careers in Georgia publication, Southwest Georgia Area Health Education Center, 2006-2012


Arroyo C and Mincey KD. Relationship between obesity and diabetes in the African American community. In Leonard Jack, Jr. (Ed.), Diabetes in the Black Community. Hilton Publishing. May 2010.