Susan LeRoy Stewart, Ph.D.



Public Health Sciences- Division of Biostatistics


  • Professor


Administrative Support Building

2450 48th St., Suite 1600
Sacramento, CA 95817
Driving Directions

Primary Phone:

Clinical Interests

Susan Stewart�s research interests and activities include statistical methods and issues in cancer, population-based research, quality of life, health disparities, behavioral interventions, study design and data quality.

Stewart has served as national biostatistical director and program evaluator for the Asian American Network for Cancer Awareness, Research and Training (AANCART), and chaired a group determining reporting measures across all 23 such Community Network Program Centers funded by the National Cancer Institute�s Center to Reduce Cancer Health Disparities.

Her select recent undertakings also include quality-of-life analyses in breast cancer patients and assessments of behavioral interventions for breast and colorectal cancers, hepatitis B and smoking cessation. Stewart is also addressing cross- cutting statistical issues in a multi-center longitudinal study, and investigating effects of geographical clustering on the variance of parameter estimates in community intervention trials.


Public Health Sciences

Center/Program Affiliation

UC Davis Comprehensive Cancer Center


Ph.D., UC Berkeley, Berkeley, California, 1987

A.B., UC Berkeley, Berkeley, California, 1974

M.A., UC Berkeley, Berkeley, California, 1982

Professional Memberships

American Public Health Association

American Statistical Association

International Biometric Society

Select Recent Publications

Chou AF, Stewart SL, Wild RC, Bloom JR. Social support and survival in young women with breast carcinoma. Psychooncology 21(2):125-33, 2012.

Sarkar M, Stewart S, Yu A, Chen MS, Nguyen TT, Khalili M. Hepatocellular carcinoma screening practices and impact on survival among hepatitis-B infected Asian Americans. J Viral Hepat 19(8):594-600, 2012.

Kwong SL, Stewart SL, Aoki CA, Chen MS Jr. Disparities in hepatocellular carcinoma survival among Californians of Asian ancestry, 1988-2007. Cancer Epidemiol Biomarkers Prev 19(11):2747-2757, 2010.

Nguyen BH, McPhee SJ, Stewart SL, Doan HT. Effectiveness of a controlled trial to promote colorectal cancer screening in Vietnamese Americans. Am J Public Health 100(5):870-6, 2010.

Stewart SL, Rakowski W, Pasick RJ. Behavioral constructs and mammography in five ethnic groups. Health Educ Behav Health Educ Behav 36(5 Suppl):36S-54S, 2009.