Elizabeth A. Hahn, MA

Associate Professor

Elizabeth Hahn is a medical sociologist and biostatistician with expertise in the design, implementation, coordination and statistical analysis of clinical trials, survey research studies, instrument development and validation projects, and other outcomes research studies in cancer and cardiovascular disease. She has expertise in the application and interpretation of probabilistic measurement models (item response theory) as well as statistical models based on classical test theory. She participates in workshops and symposia to discuss research design, measurement and statistical analysis issues related to self-report data, and provides consultation to international researchers in the design and analysis of clinical trials. She is Director of Biostatistics at the Center on Outcomes, Research and Education (CORE), Evanston Northwestern Healthcare; Director of the Outcomes Measurement and Survey Core, a shared resource of the Robert H. Lurie Comprehensive Cancer Center of Northwestern University (RHLCCC); Assistant Professor, Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University; and Assistant Professor, Institute for Healthcare Studies, Northwestern University. She serves on the Cancer Control and Prevention: Health Policy and Health Services Research (CPHPS) Peer Review Committee for the American Cancer Society.

Research Interests

Her research is focused on methodological issues in the measurement and analysis of patient-reported outcomes in patients with cancer and other chronic illnesses, health literacy and health disparities. She is the principal investigator on several grants targeted to underserved populations (low literacy and minorities; AHRQ R01-HS10333; ACS #TURSG-02-069-01-PBP; NHLBI R01-HL081485). She was recently awarded the American Cancer Society Trish Greene Quality of Life Manuscript Award.

Recent Publications

1. Hahn EA, Cella D, Dobrez DG, Weiss BD, Du H, Lai JS, Victorson D, Garcia SF. The impact of literacy on health-related quality of life measurement and outcomes in cancer outpatients. Quality of Life Research [Epub ahead of print], 2006.

2. Hahn EA, Bode RK, Du H, Cella D. Evaluating linguistic equivalence of patient-reported outcomes in a cancer clinical trial. Clinical Trials 3: 280-290, 2006.

3. Hahn EA, Cella D, Bode RK, Gershon R, Lai JS. Item banks and their potential applications to health status assessment in diverse populations. Medical Care, 44(11 suppl 3):S189-S197, 2006.

4. Hahn EA, Cella D. Measuring patient satisfaction and dissatisfaction. In: Rasch Measurement in Health Sciences, Maple Grove, MN: JAM Press, 2005.

5. Hahn EA, Holzner B, Kemmler G, Sperner-Unterweger B, Hudgens SA, Cella D. Cross-cultural evaluation of health status using item response theory: FACT-B comparisons between Austrian and U.S. patients with breast cancer. Evaluation and the Health Professions 28(2): 233-259, 2005.

6. Hahn EA, Cella D, Dobrez D, Shiomoto G, Marcus E, Taylor SG, Vohra M, Chang CH, Wright BD, Linacre JM, Weiss BD, Valenzuela V, Chiang HL, Webster K. The Talking Touchscreen: A new approach to outcomes assessment in low literacy. Psycho-Oncology 13:86-95, 2004.

7. Hahn EA, Cella D, Dobrez DG, Shiomoto G, Taylor SG, Galvez AG, Diaz P, Valenzuela V, Chiang HL, Khan S, Hudgens SA, Du H. Quality of life assessment for low literacy Latinos: A new multimedia program for self-administration. J Oncol Manag 12(5): 9-12, 2003.

8. Hahn EA, Cella D. Health outcomes assessment in vulnerable populations: Measurement challenges and recommendations. Arch Phys Med Rehabil 84 (suppl 2):S35-S42, 2003.

9. Hahn EA, Glendenning GA, Sorensen MV, Hudgens SA, Druker BJ, Guilhot F, Larson RA, O’Brien SG, Dobrez DG, Hensley ML, Cella D, on behalf of the IRIS Investigators. Quality of life in patients with newly diagnosed chronic phase myeloid leukemia on Imatinib versus interferon alfa plus low-dose cytarabine: Results from the IRIS study. J Clin Oncol 21:2138-2146, 2003.

10. Hahn EA, Cella D, Chassany O, Fairclough DL, Wong GY, Hays RD. Precision of Health-related quality-of-life data compared with other clinical measures. Clinical significance consensus meeting group. Mayo Clinic Proc. 2007 Oct;82(10):1244-57.

11. Hahn EA, Cella D, Chassany O, Fairclough DL, Wong GY, Hays RD, Clinical significance consensus meeting group. Precision of health-relationed quality-of-life compared with other clinical measures. Mayo Clin Proc. 2007 Oct;82(10):1244-54.

12. Rosenbloom SK, Victorson DE, Hahn EA, Peterman AH, Cella D. Assessment is not enough: a randomized controlled trial of the effects of HRQL assessment on quality of life and satisfaction in oncologey clinical practice. Psycho-Oncology. 2007 Dec;16(12):1069-79.

PHONE: 224-364-7373
E-MAIL: e-hahn@northwestern.edu