Susan Horn, PhD
Susan D. Horn, Ph.D.
Adjunct Professor, University of Utah

Susan D. Horn, Ph.D., is senior scientist, Institute for Clinical Outcomes Research (ICOR), and vice president of research, International Severity Information Systems, Inc. (ISIS), both located in Salt Lake City, Utah. In addition, she is an Adjunct Professor in the Departments of Biomedical Informatics and Physical Medicine and Rehabilitation, University of Utah School of Medicine. From 1968 to 1992, she was professor at The Johns Hopkins University in Baltimore, Maryland, where she conducted research, taught biostatistics and health services courses, and directed the Robert Wood Johnson Foundation Program for Faculty Fellowships in Health Care Finance.

In 1979, Dr. Horn began work on severity of illness measurement, which led to the Comprehensive Severity Index (CSI®), with inpatient, ambulatory, long-term care, hospice, and rehabilitation modules. The CSI software system collects disease-specific, physiologic severity data for clinical practice improvement and risk-adjusted outcomes and applies to all patients–adult and pediatric–and all medical, surgical, and psychiatric conditions.

Dr. Horn has been principal investigator for practice-based evidence clinical practice improvement projects studying pediatric severity of illness, asthma and bronchiolitis, GI and CABG surgery patients, pressure ulcers in long-term care, hospice, post-stroke and joint replacement rehabilitation, and labor and delivery care. Recent projects include practice-based evidence studies in spinal cord injury, traumatic brain injury, falls prevention, chronic pain in cancer and non-cancer patients, and repositioning times for frail patients funded by National Institutes of Health, Agency for Healthcare Research and Quality, and National Institute for Disability and Rehabilitation Research.

Dr. Horn has authored over 230 publications on statistical methods, health services research, severity of illness measurement, clinical practice improvement methodology, and quality of care and is editor of Clinical Practice Improvement Methodology: Implementation and Evaluation, 1997, available by contacting ISIS Inc.

Dr. Horn earned a B.A. in mathematics at Cornell University, and a Ph.D. in statistics at Stanford University.