Rochester, Minnesota Clinical Profile


The research interests of Ivana T. Croghan, Ph.D., have focused on the areas of community-based interventions for smoking cessation and obesity, including work with varied populations such as women and adolescents, Alaska Natives, and other diverse ethnic groups on an international basis. She is interested in health care disparities as they relate to women and adolescents.

For the past 25 years, Dr. Croghan's expertise has been in research design and organizing clinical trials. In addition, in the past 20 years, she has delivered numerous lectures to Mayo Clinic faculty and students, as well as presented at national and international meetings. She serves as a reviewer for several prominent medical journals and as an international consultant for a tobacco journal in Italy, and she's served on several research committees at Mayo Clinic, including the Institutional Review Board.

Dr. Croghan has worked with academia, governmental research bodies, and U.S. and European pharmaceutical companies. She has coordinated more than 140 prospective clinical trials and more than 80 retrospective trials, been an active strategist in both multisite and multiple-country studies of rather considerable complexity, and been an author on more than 111 peer-reviewed manuscripts.

Focus areas

  • Gender disparities
  • Tobacco dependence
  • Obesity
  • Breast cancer

Significance to patient care

One-fifth of the U.S. adult population smokes cigarettes. Smoking is the single most important preventable cause of morbidity, mortality and excess health care costs in the U.S. Although pharmacotherapies are available to aid in smoking cessation, new approaches are needed to enhance smoking cessation rates.

Obesity is the fifth-leading risk for global deaths. Currently, about 32 to 35 percent of the American adult population is considered obese. Obesity increases the risk of developing high blood pressure; type 2 diabetes; cardiovascular disease; stroke; gallbladder disease; high cholesterol; osteoporosis; age-related macular degeneration; cancer, such as that of the breast, prostate and colon; asthma; pregnancy complications; infertility; sleep apnea; and even Parkinson's disease, a progressive neurological disorder.

In addition, excessive weight can be linked to psychological difficulties, such as mood swings and low self-esteem. On average, obese people have medical costs that are $1,429 more than medical costs of normal-weight people.

Dr. Croghan's research focuses on developing and testing new interventions to help people live longer and healthier lives.


See my publications


Primary Appointment

  1. Primary Care Internal Medicine

Academic Rank

  1. Professor of Medicine


  1. Fellow - Nicotine Dependence Division of Primary Care Internal Medicine, Department of Internal Medicine
  2. Fellow - Epidemiology State University of New York at Buffalo
  3. PhD - Experimental Pathology/Epidemiology State University of New York College at Buffalo
  4. MS - Natural Science State University of New York College at Buffalo
  5. BS - Magna Cum Laude - Biology Pace University - College of White Plains

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