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This press release is an announcement submitted by Kaiser Permanente, and was not written by Diabetes Health.
People with diabetes who have limited health literacy are at higher risk for hypoglycemia or low blood sugar, according to a new study from researchers at the University of California, San Francisco and the Kaiser Permanente Division of Research in Oakland, CA.
The team surveyed more than 14,000 adults with diabetes who are part of the Diabetes Study of Northern California (DISTANCE) - making it the largest observational study to assess significant hypoglycemia in the United States. Results were based on self-reported hypoglycemia that required individuals to get assistance and/or to have treatment for a reaction.
Researchers found that those with limited health literacy are at higher risk of significant hypoglycemia. The team defined limited health literacy as patients reporting difficulties reading health-related materials.
Findings appear in the Journal of General Internal Medicine and are scheduled to be available online on May 19, 2010 at http://www.SpringerLink.com.
"The frequency of significant hypoglycemia suggests that more surveillance and monitoring are needed. Physicians need to ask diabetes patients about hypoglycemia symptoms at every visit. Our results also highlight the need to be careful about performance standards for glucose control in diabetes. There may be unintended consequences, like significant hypoglycemia, in trying to achieve strict glucose control for all diabetes patients," said Urmimala Sarkar, MD, MPH, lead author of the study. Sarkar is with the UCSF Center for Vulnerable Populations and the UCSF Division of General Internal Medicine at San Francisco General Hospital.
If left untreated, hypoglycemia may lead to unconsciousness. In addition, episodes of low blood sugar can have long-term consequences such as dementia, explain the researchers.
"This study is a wake-up call for clinicians. Serious hypoglycemic events occur more often than are clinically recognized, especially among patients who may have difficulty understanding written materials. Providers and pharmacists need to ensure that their patients fully understand the instructions that come with each medication or patient safety may be compromised," said Andrew J. Karter, PhD, principal investigator of the DISTANCE Study and senior research scientist at the Kaiser Permanente Division of Research in Oakland, CA.
Investigators determined patients' levels of health literacy by asking patients to report problems due to reading, understanding, and filling out forms, not due to poor vision. Patients had the option to respond online, in writing or using the telephone. The researchers also asked whether study participants had experienced hypoglycemia severe enough to require assistance. The researchers found that:
Data collection and analyses for this study were conducted by the NIH-funded DISTANCE study, which enrolled a sample of patients from the Kaiser Permanente Northern California Diabetes Registry. The overarching aim of DISTANCE is to investigate ethnic and educational disparities in diabetes-related behaviors, processes of care and health outcomes.
Dean Schillinger, MD, of the UCSF Center for Vulnerable Populations and UCSF Division of General Internal Medicine at San Francisco General Hospital, is senior co-author. He also is director of the California Diabetes Program, a federally-funded program that is administered by UCSF for the California Department of Public Health.
Co-authors include Andrew J. Karter; Jennifer Y. Liu, MPH and Howard H. Moffet, MPH, Division of Research, Kaiser Permanente Northern California; and Nancy E. Adler, PhD, UCSF Center for Health and Community.
Funds were provided by the National Institute of Diabetes, Digestive and Kidney Diseases, the National Institute of Child Health and Human Development, and the National Center for Research Resources. Sarkar is supported by the Agency for Healthcare Research and Quality. Schillinger is supported by a grant from the Agency for Healthcare Research and Quality and a NIH Clinical and Translational Science Award.
UCSF is a leading university dedicated to promoting health worldwide through advanced biomedical research, graduate-level education in the life sciences and health professions, and excellence in patient care. For further information, visit www.ucsf.edu.
About the Kaiser Permanente Division of Research
The Kaiser Permanente Division of Research conducts, publishes, and disseminates epidemiologic and health services research to improve the health and medical care of Kaiser Permanente members and the society at large. It seeks to understand the determinants of illness and well-being and to improve the quality and cost-effectiveness of health care. Currently, DOR's 500-plus staff is working on more than 250 epidemiological and health services research projects. For more information, visit http://www.dor.kaiser.org/.
About Kaiser Permanente
Kaiser Permanente is committed to helping shape the future of health care and recognized as one of America's leading health care providers and not-for-profit health plans. Founded in 1945, its mission is to provide high-quality, affordable health care services to improve the health of members and the communities that are served. Kaiser Permanente currently serves 8.6 million members in nine states and the District of Columbia. Care for members and patients is focused on their total health and guided by their personal physicians, specialists and team of caregivers. Expert and caring medical teams are empowered and supported by industry-leading technology advances and tools for health promotion, disease prevention, state-of-the art care delivery and world-class chronic disease management. Kaiser Permanente is dedicated to care innovations, clinical research, health education and the support of community health.
For more information, go to: www.kp.org/newscenter.
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