The field of health literacy has evolved over the decades. While early work focused on individual skills (and deficits) and specific products (brochures and documents, for example), we, the authors, have come to a greater appreciation that health literacy is multidimensional-it includes both system demands and complexities as well as the skills and abilities of individuals. The individuals may be patients or family members, and the providers of information may be health care providers, protocol developers, insurance organizations, pharmaceutical companies, and others. To personalize and attach the study of health literacy to a variety of disciplines, various experts have come up with such terms as "oral health literacy" and "environmental health literacy," which help to connect specific content to the central concept. But we believe it is important to generate a renewed and focused discussion about the definition of health literacy to ensure that the definition actually reflects today's understanding of health literacy as multidimensional. Furthermore, health literacy operates in a wide variety of settings and mediums. So, we believe a definition should include a description of this multidimensionality; an explanation of a variety of settings and modes and media; and the unique psychological impact of health literacy on empowerment and health decisions. It should also be tangible, and, finally, it should be testable. In this paper we present an argument for why the field of health literacy needs to come to a new level of consensus on the components of a definition of health literacy. Our goals are to contribute to increasing the effectiveness of the field of health literacy in preventing disease, eliminating health inequity, increasing treatment and medical care diagnosis and effectiveness, lowering barriers to access, and improving health outcomes at a lower cost overall. LIMITATIONS OF CURRENT DEFINITIONS The most obvious complication with having multiple and often conflicting definitions of health literacy may be the simple confusion to researchers, health and health care practitioners, and policy makers who need to process and select among the many options-a complex literacy task in and of itself. This is a particular challenge in that definitions of health literacy vary significantly. To date, what appears to be the most cited definition in the United States is that originally put forth by Ratzan and Parker in 2000-"The capacity of individuals to obtain, process, and understand basic health information and services needed to make appropriate health decisions"-which was then picked up by the U.

Globally, antimicrobial resistance (AMR) is a serious problem causing 700,000 deaths annually. By 2050, AMR is expected to cause approximately 10 million deaths globally each year if allowed to increase at the present rate. Many individuals have limited knowledge regarding appropriate antibiotic use and AMR. Most antibiotic use occurs in the outpatient setting, with approximately 30% of antibiotics prescribed deemed unnecessary. Antimicrobial stewardship (AMS) is a means to reduce inappropriate antibiotic use and AMR. While existing AMS efforts generally focus on the inpatient setting, a significant gap is present in the outpatient setting. A common theme across various national action plans to reduce AMR is the need for education and awareness. The importance of communicating information in a manner easily comprehended by the patient in addition to productive clinician-patient dialogue cannot be overestimated. Enhancing the public's and patients' AMS health literacy is an underrecognized approach to help address AMR. We describe Four Core Elements of Enhancing AMS Health Literacy in the Outpatient Setting, utilizing the Centers for Disease Control and Prevention's framework: (1) leadership commitment, (2) intervention/action, (3) tracking/ reporting, and (4) education/expertise. We call upon leaders in outpatient settings to embrace this approach to curb inappropriate antimicrobial use.

Background: Health literacy is increasingly being recognized as a widespread public health challenge in Europe. This commentary explores the importance of health literacy amongst cancer patients (ie, cancer literacy) and examines how cancer literacy can be improved through the practical application of health literacy principles within the context of providing timely, patient-centered, value-based care in Europe. Main body: Despite implementation of evidence-based cancer prevention programs and increased cancer survival rates, low cancer literacy may impact the personal capacity to manage risks and adversely impact behavior and outcomes. Cancer literacy poses a unique set of challenges compared to other types of health literacy, as patient decisions regarding screening, treatment, and side effect management are often complex, and timely decisionmaking is more critical. Accordingly, European health policies increasingly recognize the importance of health literacy. The European Patients Forum, European Cancer Patient Coalition, and the Association of European Cancer Leagues supported a joint statement, "Europe Let's Do More for Health," which emphasizes the need to empower citizens and patients by addressing health literacy, self-management, and shared decision-making. Implementation of comprehensive programs and strategies will be important to improve health literacy. Cancer literacy can be improved through application of health literacy principles in the communication and cooperation with professionals, patients and caregivers for providing timely, patient-centered, value-based care. Recommendations are made for further action to improve cancer literacy in Europe through coordinated efforts among providers, organizations, patients, and research. A policy paper developed by the European Joint Action on Cancer Control provides practical recommendations that Member States can take to reduce social inequalities in cancer care and defines focus areas that are closely connected with the need to improve cancer literacy. Conclusion: Improved personal cancer literacy combined with health literate organizations and systems can potentially improve the quality of care and health outcomes among patients with cancer. National Cancer Control Plans and Europe's Beating Cancer Plan can strengthen cancer literacy.

Applying "user testing" resulted in a largely health-literate summary suitable for people across a range of backgrounds.

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