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Gerald T. O'Connor, PhD, ScD

Emeritus Professor of Medicine
Emeritus Professor of Community and Family Medicine
Emeritus Professor of The Dartmouth Institute

Community and Family Medicine
The Dartmouth Institute

Columbia University, BS (Biological Sciences)
Union Institute & University, PhD (Health Services Research)
Boston University, School of Public Health, ScD (Epidemiology)
Harvard Medical School, Fellowship (Cardiovascular Epidemiology)
Harvard Kennedy School of Government, MPA (Public Administration)

The Dartmouth Institute for Health Policy and Clinical Practice


Contact Information

Dartmouth Medical School
HB 7505
Hanover NH 03755

Office: DHMC Lebanon, NH
Phone: 603-653-3534
Fax: 603-653-3554

Asst. Phone: 603-653-3553

Professional Interests

Dr. O'Connor's primary interest is in the use of epidemiologic techniques to improve clinical and patient decision-making and to accelerate the improvement of clinical care.

He is the Principal Investigator of the National Quality Program of the Cystic Fibrosis Foundation. This project uses the CFF database and works with CF teams across the US. This CFF sponsored project has resulted in substantial improvement in clinical outcomes. In 2005-06 Dr. O’Connor was chairman of the committee that developed and implemented national public reporting of CF clinical outcomes.

For over 20 years he was the Research Director of the Northern New England Cardiovascular Disease Study Group. The NNECDSG is a regional voluntary consortium of hospitals and practitioners in Maine, New Hampshire and Vermont. The group maintains a clinical database and works with care teams to improve the management of cardiovascular disease. The consortium was organized in 1987 and is ongoing.

He was Director of the Education Center at the Dartmouth Institute for Health Policy and Clinical Practice for 17 years and was Associate Dean at Dartmouth Medical School.

Courses Taught

Introduction to Quantitative Methods
Epidemiology and Biostatistics 2.

Selected Publications


  • O'Connor GT, Birkmeyer JD, Dacey LJ, Quinton HB, Marrin CA, Birmeyer NJ, Morton JR, Leavitt BJ, Maloney CT, Hernandez F, Clough RA, Nugent WC, Olmstead EM, Charlesworth DC, Plume SK. Results of a regional study of modes of death associated with coronary artery bypass grafting. Ann Thorac Surg Oct. 1998; 66(4): 1323-1328.

  • O'Connor GT, Eagle KA How do we know how well we are doing? J Am Coll Cardiol. Oct 1998;32(4): 1000-1001.

  • O'Connor, GT, Quinton HB, Traven ND, Ramunno LD, Dodds TA, Marciniak TA, Wennberg JE. Geographic variation in the treatment of acute myocardial infarction: the Cooperative Cardiovascular Project. JAMA 1999: 281(7):627-633.

  • O'Connor, GT. Physician leadership in cardiac outcomes reporting. Ann Thorac Surg. Sept 2000;70(3):693-694.

  • O'Connor, G.T., Quinton, H.B., Kneeland, T., Kahn, R., et al. Median household income and mortality rate in cystic fibrosis. Pediatrics. April 2003: 111(4 Pt 1), e333-339.

  • Brown, JR, Birkmeyer, NJ, O'Connor GT. Aprotinin in cardiac surgery. N Engl J Med 2006: 354(18), 1953-1957.

  • Surgenor SD, DeFoe GR, Fillinger MP, Likosky DS, Groom RC, Clark C, O'Connor GT. Intraoperative red blood cell transfusion during CABG surgery increases the risk of postoperative low-output heart failure. Circulation, July 4, 2006; 114; 143-148.

  • Brown JR, Birkmeyer NJ, O'Connor GT. Meta-analysis comparing the effectiveness and adverse outcomes of antifibrinolytic agents in cardiac surgery. Circulation Jun. 5, 2007; 1159220:2801-2813.

  • Quinton HB, O'Connor GT. Current issues in quality improvement in cystic fibrosis. Clin, Chest Med., June 2007;27920:459-472.

  • O'Connor GT, Olmstead EM, Nugent WC, Leavitt BJ, Clough RA, Weldner PW, Charlesworth DC, Chaisson K, Sisto D, Nowicki ER, Cochran RP, Malenka J. Appropriateness of coronary artery bypass graft surgery performed in Northern New England. J Am Coll Cardiol. June 19 2008;51(24);2323-2328.