Researcher Profile

Researcher Profile

Siddhartha Roy, MPH, DrPH

Siddhartha Roy, MPH, DrPH

Assistant Professor, Department of Family and Community Medicine
Scientific Program:Cancer Control

Research Interests

Dr. Siddhartha Roy's current research examines colorectal cancer (CRC) screening rates among African Americans/Blacks. 

CRC is the third leading cause of cancer and the second most common cause of cancer-­related deaths among men and women in the United States. African Americans/Blacks are at greater risk for developing and dying from CRC compared to other racial/ethnic minorities.

Barriers to CRC screening impact screening utilization and are more common in medically underserved populations, resulting in disparities in screening utilization. As part of an American Cancer Society Institutional Research Grant, Dr. Roy will conduct a pilot study to assess the feasibility and acceptability of a program that trains barbers and salon stylists to serve as health advisers for their customers and connects their customers to patient navigators to increase CRC screening uptake (FIT or colonoscopy).

His general research interests include cancer prevention, community-engaged research, health disparities, colorectal cancer, prostate cancer and intervention development.

  • Colorectal Neoplasms
  • Early Detection of Cancer
  • African Americans
  • Prostatic Neoplasms
  • Neoplasms
  • Health
  • African Continental Ancestry Group
  • Education
  • Breast Neoplasms
  • Uterine Cervical Neoplasms
  • Feasibility Studies
  • Odds Ratio

Recent Publications


Roy, S, Moss, JL, Rodriguez-Colon, SM, Shen, C, Cooper, JD, Lennon, RP, Lengerich, EJ, Adelman, A, Curry, W & Ruffin, MT 2020, 'Examining Older Adults’ Attitudes and Perceptions of Cancer Screening and Overscreening: A Qualitative Study', Journal of Primary Care and Community Health, vol. 11.
Roy, S, Gwede, CK, Malo, TL, Scherr, CL, Radlein, S, Meade, CD, Vadaparampil, ST & Park, JY 2020, 'Exploring Prostate Cancer Patients’ Interest and Preferences for Receiving Genetic Risk Information About Cancer Aggressiveness', American Journal of Men's Health, vol. 14, no. 3.
Moss, JL, Roy, S, Shen, C, Cooper, JD, Lennon, RP, Lengerich, EJ, Adelman, A, Curry, W & Ruffin, MT 2020, 'Geographic Variation in Overscreening for Colorectal, Cervical, and Breast Cancer Among Older Adults', JAMA network open, vol. 3, no. 7, pp. e2011645.
Roy, S, Dickey, S, Wang, HL, Washington, A, Polo, R, Gwede, CK & Luque, JS 2021, 'Systematic Review of Interventions to Increase Stool Blood Colorectal Cancer Screening in African Americans', Journal of Community Health, vol. 46, no. 1, pp. 232-244.


Davis, SN, Wischhusen, JW, Sutton, SK, Christy, SM, Chavarria, EA, Sutter, ME, Roy, S, Meade, CD & Gwede, CK 2020, 'Demographic and psychosocial factors associated with limited health literacy in a community-based sample of older Black Americans', Patient Education and Counseling, vol. 103, no. 2, pp. 385-391.


Roy, S, Hansen, AR, Ross, L & Larson, R 2018, 'A Qualitative Study to Assess Barber Perceptions of the Feasibility of the Employer as a Health Advisor for Obesity Prevention', American Journal of Men's Health, vol. 12, no. 5, pp. 1450-1462.

Clinical Trials Search

Children (age < 18 years)
Adults (age >= 18 years)