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John Z Ayanian, Department of Health Care Policy |
Dr. Ayanian’s research focuses on the effect of patients’ race, ethnicity, gender, insurance coverage, and socioeconomic characteristics on access to care and clinical outcomes, as well as the impact of physicians’ specialty and organizational characteristics on the quality of care. He is the principal investigator of the Harvard/Northern California research team in the Cancer Care Outcomes Research and Surveillance (CanCORS) Consortium, a multi-regional initiative funded by the National Cancer Institute to evaluate the experiences and outcomes of patients with colorectal cancer and lung cancer. He leads two other NCI-funded studies evaluating randomized interventions to improve systems for colorectal cancer screening.
In Dr. Ayanian’s recent research, he has studied trends in quality of care and racial disparities in Medicare managed care plans, the effect of Medicare coverage on previously uninsured adults, the impact of ambulatory care from primary care physicians and cardiologists on the outcomes of Medicare beneficiaries who have survived a heart attack, the relation of surgical volume to outcomes of colorectal cancer, and patients’ perceptions of the quality of cancer care by race, ethnicity, and language. His previous research includes studies of the effects of race and gender on access to kidney transplants and cardiac procedures, and the quality of care for common medical conditions in teaching and non-teaching hospitals.
Representative Publications
Block, J.P., He, Y., Zaslavsky, A.M., Ding, L., & Ayanian, J.Z. (2009). Psychosocial stress and change in weight among U.S. adults. American Journal of Epidemiology, 170, 181-192.
Ayanian, JZ, Zaslavsky, AM, Guadagnoli, E, Fuchs, CS, Yost, KJ, Creech, CM, Cress, RD, O’Connor, LC, West, DW, Wright, WE. (2005). Patients’ perceptions of quality of care for colorectal cancer by race, ethnicity, and language. J Clin Oncol 2005; 23:6576-86.
Trivedi, AN, Zaslavsky, AM, Schneider, EC, Ayanian, JZ. (2005). Trends in the quality of care and racial disparities in Medicare managed care. N Engl J Med 2005; 353:692-700.
Jha, AK, Perlin, JB, Steinman, MA, Peabody, JW, Ayanian, JZ. (2005). Quality of ambulatory care for women and men in the Veterans Affairs healthcare system. J Gen Intern Med 2005; 20:762-5.
Persell, SD, Maviglia, S, Bates, DW, Ayanian, JZ. (2005). Ambulatory hypercholesterolemia management in patients with atherosclerosis: sex and race differences in processes and outcomes. J Gen Intern Med 2005; 20:123-30.
Cleary, P. D., Zaborski, L. B., & Ayanian, J. Z. (2004). Sex differences in health over the course of mid-life. In O. G. Brim, C. D. Ryff & R. C. Kessler (Eds.), How healthy are we?: A national study of well-being at midlife. (pp. 37-63). Chicago, IL: University of Chicago Press.
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Ayanian, JZ, Chrischilles, EA, Fletcher, RH, Fouad, MN, Harrington, DP, Kahn, KL, Kiefe, CI, Lipscomb, J, Malin, JL, Potosky, AL, Provenzale, DT, Sandler, RS, van Ryn, M, Wallace, RB, Weeks, JC, West, DW. (2004). Understanding cancer treatment and outcomes: the Cancer Care Outcomes Research and Surveillance Consortium. J Clin Oncol 2004; 15:2992-6.
Sequist, TD, Narva, AS, Stiles, SK, Carp, SK, Cass, A, Ayanian, JZ. (2004). Access to renal transplantation among American Indians and Hispanics. Am J Kidney Dis 2004; 44:344-52.
McWilliams, JM, Zaslavsky, AM, Meara, E, Ayanian, JZ. (2004). Health insurance coverage and mortality among the near-elderly. Health Aff 2004; 23(4):223-33.
Ayanian, JZ, Cleary, PD, Keogh, JH, Noonan, SJ, David-Kasdan, JA, Epstein, AM. (2004). Physicians’ beliefs about racial differences in referral for renal transplantation. Am J Kidney Dis 2004; 43:350-7.
Ayanian, JZ, Zaslavsky, AM, Weissman, JS, Schneider, EC, Ginsburg, JA. (2003). Undiagnosed hypertension and hypercholesterolemia among uninsured and insured adults in the Third National Health and Nutrition Examination Survey (NHANES III). Am J Public Health 2003; 93:2051-4.
McWilliams, JM, Zaslavsky, AM, Meara, E, Ayanian, JZ. (2003). The impact of Medicare coverage on basic clinical services for previously uninsured adults. JAMA 2003; 290:757-64.
Hodgson, DC, Zhang, W, Zaslavsky, AM, Fuchs, CS, Wright, WW, Ayanian, JZ. (2003). Relation of hospital volume to colostomy rates and survival for patients with rectal cancer. J Natl Cancer Inst 2003; 95:708-16.
Ayanian, JZ, Zaslavsky, AM, Fuchs, CS, Guadagnoli, E, Creech, CM, Cress, RD, O’Connor, LC, West, DW, Allen, ME, Wolf, RE, Wright, WE. (2003). Use of adjuvant chemotherapy and radiation therapy for colorectal cancer in a population-based cohort. J Clin Oncol 2003; 21:1293-1300.
Ayanian, JZ, Landrum, MB, Guadagnoli, E, Gaccione, P. (2002). Specialty of ambulatory care physicians and mortality among elderly patients after myocardial infarction. New Eng J Med 2002; 347:1678-86.
Ayanian, JZ, Landrum, MB, McNeil, BJ. (2002). Use of cholesterol-lowering therapy by elderly adults after myocardial infarction. Arch Intern Med 2002; 162:1013-9.
Federman, AD, Adams, AS, Ross-Degnan, D, Soumerai, SB, Ayanian, JZ. (2001). Supplemental insurance and use of effective cardiovascular drugs among elderly Medicare beneficiaries with coronary heart disease. JAMA 2001; 286:1732-9.
Fremont, AM, Cleary, PD, Hargraves, JL, Rowe, RM, Jacobson, NB, Ayanian, JZ. (2001). Patient-Centered Processes of Care and Long-Term Outcomes of Myocardial Infarction. J Gen Int Med; 2001; 16: 800-808.
Ayanian, JZ, Weissman, JS, Schneider, EC, Ginsburg, JA, Zaslavsky, AM. (2000). Unmet health needs of uninsured adults in the United States. JAMA 2000; 284:2061-9.
Ayanian, J. Z., & Cleary, P. D. (1999). Perceived risks of heart disease and cancer among cigarette smokers. Journal of the American Medical Association, 281(11), 1019-1021.
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Keating, N. L., Cleary, P. D., Rossi, A. S., Zaslavsky, A. M., & Ayanian, J. Z. (1999). Use of hormone replacement therapy by postmenopausal women in the United States. Annals of Internal Medicine, 130(7), 545-553.
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Ayanian, JZ, Cleary, PD, Weissman, JS, Epstein, AM. (1999). The effect of patients’ preferences on racial differences in access to renal transplantation. N Engl J Med 1999; 341:1661-9.
Keating, NL, Cleary, PD, Rossi, AS, Zaslavsky, AM, Ayanian, JZ. (1999). Use of hormone replacement therapy by postmenopausal women in the United States. Ann Intern Med 1999; 130:545-53.
Keating, NL, Zaslavsky, AM, Ayanian, JZ. (1998). Physicians’ experiences and beliefs regarding informal consultation. JAMA 1998; 280:900-4.
Ayanian, JZ, Landrum, MB, Normand, S-LT, Guadagnoli, E, McNeil, BJ. (1998). Rating the appropriateness of coronary angiography: do practicing physicians agree with an expert panel and with each other? N Engl J Med 1998; 338:1896-1904.
Ayanian, JZ, Guadagnoli, E, Cleary, PD. (1995). Physical and psychosocial functioning of women and men after coronary artery bypass surgery. JAMA 1995; 274:1767-70.
Ayanian, JZ, Hauptman, PJ, Guadagnoli, E, Antman, EM, Pashos, CL, McNeil, BJ. (1994). Knowledge and practices of generalist and specialist physicians regarding drug therapy for acute myocardial infarction. N Engl J Med 1994; 331:1136-42.
Ayanian, JZ, Kohler, BA, Abe, T, Epstein, AM. (1993). The relation between health insurance coverage and clinical outcomes among women with breast cancer. N Engl J Med 1993; 329:326-31.
Ayanian, JZ, Udvarhelyi, IS, Gatsonis, CA, Pashos, CL, Epstein, AM. (1993). Racial differences in the use of revascularization procedures after coronary angiography. JAMA 1993; 269:2642-6.
Ayanian, JZ, Epstein, AM. (1991). Differences in the use of procedures between women and men hospitalized for coronary heart disease. N Engl J Med 1991; 325:221-5.