What is Health Literacy?
Health literacy refers to the ability to access, understand, communicate, and act on information related to health and disease. People who are health literate can find and understand health information, discuss concerns with medical professionals, and act on decisions to improve health and manage conditions. As a social determinant of health, health literacy is related to social factors, such as culture, education, or socioeconomic status.
It is an important factor in public health as health literacy rates affect health systems and the health services they provide. People with high levels of health literacy show healthier lifestyles, have fewer chronic illnesses, are more adherent to treatment, report better health, and live longer lives. In contrast, people with lower levels of health literacy have less use of preventive health services, are at higher risk for misdiagnosis, experience difficulties managing chronic conditions, medications, and treatment adherence, and have poorer health outcomes.
Health literacy affects everyone—even people with good literacy skills can have low health literacy. Most people will have difficulty understanding health terms or information at some point in their lives. Sometimes, people first hear specific medical terms or health information when they or a loved one has a serious health problem.
Health literacy has been shown to affect rates of illness and death, use of health services, and health outcomes. Low health literacy may account for up to five percent of overall healthcare costs. To address this, the European Union (EU) financed the European Health Literacy Survey, which revealed that nearly 50 percent of the population have a poor understanding of healthcare, disease prevention, and health promotion.
Why Does It Matter to Older Adults?
Health literacy is population-focused rather than individual-focused. Like many regions in the world, Europe is experiencing an increase in chronic conditions. It is the leading cause of mortality representing 77 percent of all deaths. When people manage multiple health conditions, they need to understand complex health information and navigate healthcare systems. Research finds that people who have the most difficulty with limited health literacy are older adults, recent immigrants who may not understand the regional language, those with lower levels of education, and ethnic minorities. For some older adults, using the internet to find health information or services is a struggle, and for others using basic math to schedule medications is challenging.
With populations growing older, more people will live with chronic conditions and may not have the skills to access, understand and act on health information. Although Europe has a relatively high socioeconomic status, up to half of its citizens have a poor understanding of their health, which means that health literacy is a crucial factor to active and healthy aging. Improving health literacy supports people in taking responsibility for their own lives, to make better decisions about their personal health, and to have the capacity to live longer lives in better health.
Increasing health literacy means addressing the knowledge and skills of people with low health literacy, their families, and communities. It also requires teaching health professionals how to provide health information that is understandable for individuals and how to help their patients understand what that information means for their own health. Improved health literacy empowers individuals to further engage in their healthcare and take a more active role in their personal health. In turn, this will have positive impacts on health promotion, disease prevention, and better treatment outcomes.
Carrie Peterson is a gerontologist and consultant in eHealth and Innovation.
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