Public Health Literacy Defined

Public health literacy is an emerging concept necessary to understand and address the broad array of factors, such as climate change, globalization, and poverty, that influence the public's health. Whereas health literacy has traditionally been operationalized as an individual-level construct, public health literacy takes into account the complex social, ecologic, and systemic forces affecting health and well-being. However, public health literacy has not yet been fully articulated. This paper addresses this gap by outlining a broad, new definition of public health literacy. This definition was developed through an inductive analytic process conducted in 2007 by a multidisciplinary research team, and two expert-panel sessions were convened to assess the consensual validity of the emergent definition. Based on this process, public health literacy is defined as the degree to which individuals and groups can obtain, process, understand, evaluate, and act on information needed to make public health decisions that benefit the community. Three dimensions of public health literacy—conceptual foundations, critical skills, and civic orientation—and related competencies are also proposed. Public health literacy is distinct from individual-level health literacy, and together, the two types of literacy form a more comprehensive model of health literacy. A five-part agenda is offered for future research and action aimed at increasing levels of public health literacy.     

Health Literacy Research and Practice: A Needed Paradigm Shift

As a field of research, a viable approach to improving health outcomes, and an important area of policy, health literacy has experienced significant growth and considerable evolution since its broad introduction in the 1990s. Despite that history, far too many practitioners, researchers, and policymakers focusing on clinical medicine, health systems, public health, and health policy remain unaware of and unaffected by the best practices of health literacy. While the inherent promise of health literacy is improved health and well-being, the bulk of research has focused on identifying the negative effects of a lack of health literacy. This strategy is a hindrance to further identifying the utility and increasing the uptake of lessons learned about health literacy in government, business, health care systems, and society. The field needs to reverse direction away from that deficit model of health literacy and focus collective efforts on a positive model of how health literacy can and should be prioritized and utilized to improve health at lower costs. This shift from framing health literacy as a problem to proving the viability and strength of health literacy as a solution will present to policymakers a clear choice to either adopt and promote the best practices of health literacy or suffer the consequences of being the leader who ignored a proven, viable solution to the currently unsustainable health care expenditures and ever-increasing burden of preventable disease, disability, and early death.     

Collaborative Processes of Developing A Health Literacy Toolkit: A Case from Fukushima after the Nuclear Accident

Following the Fukushima nuclear accident in 2011, the central government provided health and radiation-related information that was incomplete, difficult to understand and contradictory, leading to widespread distrust in the community. Thus, from 2013 to 2014, we developed and implemented a series of health literacy training workshops for local public health nurses, often the first health care professionals with whom members of the community interact. The results from our program evaluation revealed that the task of paraphrasing professional terms and skills related to relaying numeric information to the community were difficult for the nurses to acquire. In 2016, to further support the communication efforts of public health nurses, we developed a pocket-size “health literacy toolkit” that contained a glossary explaining radiation-related terms in plain language and an index to measure the accessibility of both text and numerical information, so that nurses could calibrate and appreciate the literacy demand of information. This case study documents an interprofessional collaborative effort for the development of the toolkit, and highlights the iterative process of building health literacy skills in health care professionals.     

The Association Between Health Literacy and Cancer-Related Attitudes,Behaviors, and Knowledge

Using a multidimensional assessment of health literacy (the Cancer Message Literacy Test-Listening, the Cancer Message Literacy Test-Reading, and the Lipkus Numeracy Scale), the authors assessed a stratified random sample of 1013 insured adults (40–70 years of age). The authors explored whether low health literacy across all 3 domains (n =111) was associated with sets of variables likely to affect engagement in cancer prevention and screening activities: (a) attitudes and behaviors relating to health care encounters and providers, (b) attitudes toward cancer and health, (c) knowledge of cancer screening tests, and (d) attitudes toward health related media and actual media use. Adults with low health literacy were more likely to report avoiding doctor's visits, to have more fatalistic attitudes toward cancer, to be less accurate in identifying the purpose of cancer screening tests, and more likely to avoid information about diseases they did not have. Compared with other participants, those with lower health literacy were more likely to say that they would seek information about cancer prevention or screening from a health care professional and less likely to turn to the Internet first for such information. Those with lower health literacy reported reading on fewer days and using the computer on fewer days than did other participants. The authors assessed the association of low health literacy with colorectal cancer screening in an age-appropriate subgroup for which colorectal cancer screening is recommended. In these insured subjects receiving care in integrated health care delivery systems, those with low health literacy were less likely to be up to date on screening for colorectal cancer, but the difference was not statistically significant.     

Nurse Overestimation of Patients' Health Literacy

Patient education and effective communication are core elements of the nursing profession; therefore, awareness of a patient's health literacy is integral to patient care, safety, education, and counseling. Several past studies have suggested that health care providers overestimate their patient's health literacy. In this study, the authors compare inpatient nurses' estimate of their patient's health literacy to the patient's health literacy using Newest Vital Sign as the health literacy measurement. A total of 65 patients and 30 nurses were enrolled in this trial. The results demonstrate that nurses incorrectly identify patients with low health literacy. In addition, overestimates outnumber underestimates 6 to 1. The results reinforce previous evidence that health care providers overestimate a patient's health literacy. The overestimation of a patient's health literacy by nursing personnel may contribute to the widespread problem of poor health outcomes and hospital readmission rates.     

Health care and income distribution in Finland

This paper examines the effects of health care on income redistribution in Finland. In contrast to earlier studies in this area, the redistributive effect is analysed with noncash transfers from health care utilisation included in household income. Distributional consequences of changing health care financing towards one system or another are analysed in terms of municipality provided public services and sickness insurance based public services. Our results show that, overall, the public health care system distributed income from the rich to the poor. The poorest one-third of the population financed only about one-third of the public health care services they utilised. The distributional implications were, however, markedly different depending on the definition of income used. Whereas health care financing had only a marginal redistributive effect, the effect was substantially increased as noncash transfers from health care utilisation were taken into account.     

Health literacy in Suriname

Background: Low health literacy is an independent predictor of cardiovascular mortality. However, data on health literacy in low- and middle-income countries are scarce. Therefore, we assessed the level of health literacy in Suriname, a middle-income country with a high cardiovascular mortality.

Methods: We estimated health literacy in a convenience sample at an urban outpatient center in the capital and at a semirural health center, using the validated Rapid Estimate of Adult Literacy in Medicine adapted for the Dutch language (REALM-D) instrument. REALM-D scores vary from 0 to 66 (all correct). The primary outcome was the level of health literacy. Furthermore, we assessed the effect of age, sex, ethnicity, disease history, research location, and level of education on health literacy with multivariable linear regression.

Results: We included 99 volunteers (52% men; 51% urban research location) with a mean age of 44.9 years (SD 13.4). The mean REALM-D score was moderate: 48.6 (SD 8.1). Greater health literacy was associated with male sex, an urban research location, and a higher educational level.

Conclusion: Health literacy was moderate in these Surinamese participants. Health care workers should take health literacy into account, and targeted interventions should be developed to improve health literacy in Suriname.     

The Contribution of Health Literacy to Disparities in Self-Rated Health Status and Preventive Health Behaviors in Older Adults

PURPOSE Health literacy is associated with a range of poor health-related outcomes. Evidence that health literacy contributes to disparities in health is minimal and based on brief screening instruments that have limited ability to assess health literacy. The purpose of this study was to assess whether health literacy contributes, through mediation, to racial/ethnic and education-related disparities in self-rated health status and preventive health behaviors among older adults.METHODS We undertook a cross-sectional study of a nationally representative sample of 2,668 US adults aged 65 years and older from the 2003 National Assessment of Adult Literacy. Multiple regression analysis was used to assess for evidence of mediation.RESULTS Of older adults in the United States, 29% reported fair or poor health status, and 27% to 39% reported not utilizing 3 recommended preventive health care services in the year preceding the assessment (influenza vaccination 27%, mammography 34%, dental checkup 39%). Health literacy and the 4 health outcomes (self-rated health status and utilization of the 3 preventive health care services) varied by race/ethnicity and educational attainment. Regression analyses indicated that, after controlling for potential confounders, health literacy significantly mediated both racial/ethnic and education-related disparities in self-rated health status and receipt of influenza vaccination, but only education-related disparities in receipt of mammography and dental care.CONCLUSIONS Health literacy contributes to disparities associated with race/ethnicity and educational attainment in self-rated health and some preventive health behaviors among older adults. Interventions addressing low health literacy may reduce these disparities.     

Health literacy: implications for family medicine

As many as 90 million Americans have difficulty understanding and acting on health information. This health literacy epidemic is increasingly recognized as a problem that influences health care quality and cost. Yet many physicians do not recognize the problem or lack the skills and confidence to approach the subject with patients. In this issue of Family Medicine, several articles address health literacy in family medicine. Wallace and Lennon examined the readability of American Academy of Family Physicians patient education materials available via the Internet. They found that three of four handouts were written above the average reading level of American adults. Rosenthal and colleagues surveyed residents and found they lacked the confidence to screen and counsel adults about literacy. They used a Reach Out and Read program with accompanying resident education sessions to provide a practical and effective means for incorporating literacy assessment and counseling into primary care. Chew and colleagues presented an alternative to existing health literacy screening tests by asking three questions to detect inadequate health literacy. Likewise, Shea and colleagues reviewed the prospect of shortening the Rapid Estimate of Adult Literacy in Medicine (REALM), a commonly used health literacy screening tool. Both the Chew and Shea articles highlight the need for improved methods for recognizing literacy problems in the clinical setting. Further research is required to identify effective interventions that will strengthen the skills and coping strategies of both patients and providers and also prevent and limit poor reading and numeracy ability in the next generation.     

Health literacy in health systems: perspectives on patient self-management in Israel

Health systems will face new challenges in this millennium. Striking the balance between the best quality of care and optimal use of dwindling resources will challenge health policy makers, managers and practitioners. Increasingly, improvements in the outcomes of interventions for both acute and chronic patients will depend on partnerships between health service providers, the individual and their family. Patient education that incorporates self-management and empowerment has proven to be cost-effective. It is essential that health care providers promote informed decision making, and facilitate actions designed to improve personal capacity to exert control over factors that determine health and improve health outcomes. It is for these reasons that promoting health literacy is a central strategy for improving self-management in health. The different types of health literacy--functional, interactive and critical health literacy--are considered. The potential to improve health literacy at each of these levels has been demonstrated in practice among diabetics and other chronic disease patients in Clalit Health Services (CHS) in Israel is used as an example to demonstrate possibilities. The application of all three types of health literacy is expressed in: (i) developing appropriate health information tools for the public to be applied in primary, secondary and tertiary care settings, and in online and media information accessibility and appropriateness using culturally relevant participatory methods; (ii) training of health professionals at all levels, including undergraduate and in-service training; and (iii) developing and applying appropriate assessment and monitoring tools which include public/patient participatory methods. Health care providers need to consider where their patients are getting information on disease and self-management, whether or not that information is reliable, and inform their patients of the best sources of information and its use. The improved collaboration with patient and consumer groups, whose goals are to promote rights and self-management capabilities and advocate for improved health services, can be very beneficial.     

Motivation for a Health-Literate Health Care System—Does Socioeconomic Status Play a Substantial Role? Implications for an Irish Health Policymaker

In this article, the authors argue that the association between socioeconomic status and motivation for a health-literate health care system has implications for health policymakers. As Ireland now undergoes health care reform, the authors pose the question, “Should policymakers invest in health literacy as predominately a health inequalities or a public health issue?” Data from 2 cohorts of the Survey of Lifestyle, Attitudes and Nutrition (1998 and 2002) were used to construct a motivation for a health-literate health care system variable. Multivariate logistic regressions and concentration curves were used in the analyses of this variable. Of the 12,513 pooled respondents, 46% sought at least 1 attribute on a health-literate health care system. No discernible trend emerged from the main independent variables—social class grouping, medical card eligibility, level of education, and employment—in the regression analyses. The concentration curve, for 2002 data, graphically showed that the motivation for a health-literate health care system is spread equally across the income distribution. This analysis and more recent data suggest that health literacy in Ireland should be viewed predominately as a public health issue with a policy focus at a system level.     

Health in Cuba

The poorer countries of the world continue to struggle with an enormous health burden from diseases that we have long had the capacity to eliminate. Similarly, the health systems of some countries, rich and poor alike, are fragmented and inefficient, leaving many population groups underserved and often without health care access entirely. Cuba represents an important alternative example where modest infrastructure investments combined with a well-developed public health strategy have generated health status measures comparable with those of industrialized countries. Areas of success include control of infectious diseases, reduction in infant mortality, establishment of a research and biotechnology industry, and progress in control of chronic diseases, among others. If the Cuban experience were generalized to other poor and middle-income countries human health would be transformed. Given current political alignments, however, the major public health advances in Cuba, and the underlying strategy that has guided its health gains, have been systematically ignored. Scientists make claims to objectivity and empiricism that are often used to support an argument that they make unique contributions to social welfare. To justify those claims in the arena of international health, an open discussion should take place on the potential lessons to be learned from the Cuban experience.     

The Role of Health Literacy and Numeracy in Contraceptive Decision-Making for Urban Chicago Women

Low functional health literacy and numeracy have known associations with poor health outcomes, yet little work has investigated these markers of health disparity in a family planning population. We used an in-depth qualitative process and 2 literacy and numeracy assessment tools, the REALM-7 and the Schwartz numeracy scale, to assess the role of literacy and numeracy in contraceptive decision-making in an urban Chicago population. Brief surveys and semi-structured interviews were conducted with 30 postpartum women who had received Medicaid-funded care at an obstetrics clinic in an academic medical center. In-person one-on-one interviews were then reviewed for themes using an iterative process. Qualitative analysis techniques identifying emergent themes were applied to interview data. Literacy and numeracy were assessed using REALM-7 and a validated 3-question numeracy scale. In this cohort of African American (63 %) and Hispanic (37 %) women (median age 26), 73 % had unplanned pregnancies. Although health literacy rates on the REALM-7 were adequate, numeracy scores were low. Low literacy and numeracy scores were associated with interview reports of poor contraceptive knowledge and difficulty with contraceptive use. Low health literacy and numeracy may play an important role in contraception decision-making in this low-income, minority population of women. We recommend further study of literacy and numeracy in a family planning population. Comprehensive contraception education and communication around the contraceptive decision-making process should take place at literacy and numeracy levels appropriate to each individual.     

Debt relief and public health spending in heavily indebted poor countries

The Heavily Indebted Poor Countries (HIPC) Initiative, which was launched in 1996, is the first comprehensive effort by the international community to reduce the external debt of the world's poorest countries. The Initiative will generate substantial savings relative to current and past public spending on health and education in these countries. Although there is ample scope for raising public health spending in heavily indebted poor countries, it may not be advisable to spend all the savings resulting from HIPC resources for this purpose. Any comprehensive strategy for tackling poverty should also focus on improving the efficiency of public health outlays and on reallocating funds to programmes that are most beneficial to the poor. In order to ensure that debt relief increases poverty-reducing spending and benefits the poor, all such spending, not just that financed by HIPC resources, should be tracked. This requires that countries improve all aspects of their public expenditure management. In the short run, heavily indebted poor countries can take some pragmatic tracking measures based on existing public expenditure management systems, but in the longer run they should adopt a more comprehensive approach so as to strengthen their budget formulation, execution, and reporting systems.     

Improving knowledge transfer on chronic respiratory diseases: A canadian perspective. How to translate recent advances in respiratory diseases into day-to-day care

Background: Chronic diseases represent an increasing burden for health care systems. Ongoing research efforts provide regularly new scientific evidence on how optimize current medical care. In regard to respiratory diseases, as for other health problems, optimal management of these conditions has been summarized in recent consensus guidelines but implementation of these recommendations is still poor. Not only are the key-messages of such guidelines often unknown to the practitioner and the patient but even when it is, they are often insufficiently integrated into current care, often related to behavioral, organizational and communication barriers.Methods: Literature review on the topic of Clinical Practice Guidelines implementation and reference to recent projects aimed at improving management of asthma in the province of Quebec and elsewhere, as models for such implementation process.Results: The basic principles of an effective translation of current knowledge into day-to-day care are known, but healthcare delivery structures, practice tools and resources, and regional/local leadership should be available to make it happen. Ideally, implementation requires a multidisciplinary effort of care providers, specialists, general practitioners, allied health professionals, patients and their family. The general public, health administrators and policy makers should also be aware of the consequences of poor management of these diseases and be supportive of the proposed initiatives. Finally, these last should be adequately evaluated to ensure their effectiveness and determine if they should be improved. Recently projects performed in Quebec have proposed disease management models to identify asthma care gaps and improve translation of current Guidelines into day-to-day care.Conclusions: Although the human and socio-economical burden of chronic diseases is still increasing, their current management is still often deficient. In the recent decades, Practice Guidelines have been developed to guide Practitioners towards optimal care, but implementation of these Guides is still poor. Recent Canadian and International initiatives have proposed valid models to help address current care gaps.     

Health Literacy: A Pathway to Better Oral Health

Objectives. We examined whether health literacy was associated with self-rated oral health status and whether the relationship was mediated by patient–dentist communication and dental care patterns.Methods. We tested a path model with data collected from 2 waves of telephone surveys (baseline, 2009–2010; follow-up, 2011) of individuals residing in 36 rural census tracts in northern Florida (final sample size n = 1799).Results. Higher levels of health literacy were associated with better self-rated oral health status (B = 0.091; P < .001). In addition, higher levels of health literacy were associated with better patient–dentist communication, which in turn corresponded with patterns of regular dental care and better self-rated oral health (B = 0.003; P = .01).Conclusions. Our study showed that, beyond the often-reported effects of gender, race, education, financial status, and access to dental care, it is also important to consider the influence of health literacy and quality of patient–dentist communication on oral health status. Improved patient–dentist communication is needed as an initial step in improving the population’s oral health.Oral health status is inexorably linked with general health,1 as evidenced by the association between poor oral health and chronic diseases, such as diabetes,2 cardiovascular disease,3 and respiratory disease.4 Among US adults, the burden of oral disease falls heaviest on vulnerable population groups,5–7 particularly those living in rural areas.8 Although improving oral health is named as one of the top 5 health priorities in Rural Healthy People 2010,9 little progress has been made in establishing public health programs to address this priority area. To achieve the goal of improved oral health, it is essential to study the risk factors associated with the oral health status of individuals residing in rural areas and to understand the relationships among these risk factors.The association between low dental care utilization and poor oral health outcomes has been proposed as a partial explanation for urban–rural disparities in oral health status.10–13 The rate of dental care utilization is lower among US rural than general populations, and dental visits tend to be problem—rather than prevention—oriented.14–17 Low levels of financial security and a lack of dental providers in rural areas are cited as major reasons for the low utilization rates in rural populations.12,18,19 However, evidence that individuals with dental insurance benefits choose to forgo regular preventive dental care suggests the presence of additional determinants in dental care utilization.20Previous research showed that communication between dentists and their patients plays an important role in the use of dental services.21–24 Effective patient–dentist communication increases utilization of dental services by lessening dental anxiety and, as a result, increasing patient perceptions of provider competence.25 Conversely, deficient communication skills, on either side of the patient–provider equation, are likely to increase dental anxiety and overall dissatisfaction with care.Health literacy deficits can interfere with effective patient–dentist communication. Individuals with low health literacy skills often have difficulty describing dental problems to their dentist and understanding dental conditions described by the dentist.26 Rozier et al. surveyed about 2000 dentists in the United States regarding the use of the 5 domains of communication techniques: interpersonal communication, teach-back method, patient-friendly materials and aids, assistance, and patient-friendly practice.27 Findings revealed low routine use by dentists of each communication technique, including those thought to be most effective with patients who demonstrate low health literacy.The association between low health literacy and poor health outcomes is well established.28–30 However, in the context of oral health, the literature offers few studies identifying the relationship between health literacy and oral health outcomes. It has been suggested that those with low health literacy are at highest risk for oral diseases and problems31 and that low health literacy may be associated with barriers to accessing care and with oral health behaviors such as seeking preventive care.32 Furthermore, rural residents have lower health literacy skills than urban residents.33 However, how health literacy is related to oral health status among rural populations remains an unanswered question.Frequently acknowledged risk factors for poor oral health include gender (male), race (Black), educational attainment (low), financial status (low), and access to dental care (none). We controlled for these factors in an examination of the effects of health literacy, patient–dentist communication, and dental care patterns on self-rated oral health status. In addition, we tested mediational pathways between health literacy and self-rated oral health. We hypothesized that greater health literacy would be associated with better patient–dentist communication, and in turn, that better patient–dentist communication would be associated with an increased likelihood of seeking regular dental care, ultimately leading to better self-rated oral health.     

Health Literacy Environmental Scans of Community-Based Dental Clinics in Maryland

Objectives. We conducted health literacy environmental scans in 26 Maryland community-based dental clinics to identify institutional characteristics and provider practices that affect dental services access and dental caries education.Methods. In 2011–2012 we assessed user friendliness of the clinics including accessibility, signage, facility navigation, educational materials, and patient forms. We interviewed patients and surveyed dental providers about their knowledge and use of communication techniques.Results. Of 32 clinics, 26 participated. Implementation of the health literacy environmental scan tools was acceptable to the dental directors and provided clinic directors with information to enhance care and outreach. We found considerable variation among clinic facilities, operations, and content of educational materials. There was less variation in types of insurance accepted, no-show rates, methods of communicating with patients, and electronic health records use. Providers who had taken a communication skills course were more likely than those who had not to use recommended communication techniques.Conclusions. Our findings provide insight into the use of health literacy environmental scan tools to identify clinic and provider characteristics and practices that can be used to make dental environments more user friendly and health literate.The first assessments of health literacy among US adults found that a majority of them have difficulty using health information with accuracy and consistency.1,2 These findings are especially relevant for chronic diseases such as oral disease, which require continual self-care and ongoing professional interactions. In the early stages of health literacy inquiry, health literacy was defined as “the degree to which individuals can obtain, process, and understand basic health information and services needed to make appropriate health decisions.”3^(p21) Although the initial focus was on the individual, health literacy has evolved to be understood as an outcome of the match or mismatch between health literacy skills of the public and both the skills of health professionals and the characteristics and expectations of the health systems.4,5Oral health literacy has embraced this expanded framework for understanding some of the barriers to optimal oral health. The report, “The Invisible Barrier: Literacy and Its Relationship With Oral Health,” addresses several barriers. This report acknowledges that many health care providers are not trained to assess and address the literacy needs of their patients. As a consequence, they may orally present information without ensuring that the patient understands what has been communicated. Next, many health care providers use educational materials that may not have been developed with plain language and are difficult to understand and use. In addition, patients are often reluctant to admit that they do not understand something a health care provider says or are reluctant to ask questions or do not know how to ask questions for more information. Furthermore, many low-literacy patients either do not perceive that they have a problem or do recognize that they have a problem and work to conceal it because of shame or embarrassment.6Oral health literacy is of critical concern for the health of the nation because higher levels of oral health literacy have been shown to be associated with enhanced oral health knowledge, recency of dental care visits, lower levels of dental caries, lower no-show rates, and improved oral health–related quality of life.7–11 Furthermore, recent data indicate that adults with young children do not understand how to prevent dental caries. This finding is especially true for adults with lower levels of education or whose children are Medicaid recipients.12 However, the health sector cannot improve the literacy skills of the public, nor can health professionals wait until the education sector improves. Instead, health professionals and health care institutions can work to remove literacy-related barriers to health information, to preventive services, and to care.13–16To deliver high-quality, patient-centered care, health care organizations must take steps to reduce the complexity of the health care system, which can help address the mismatch between the health literacy skills of the public and the demands of the health system.17,18 A “health literate organization” is one that makes it easier for people to navigate, understand, and use information and services to ensure their health. For example, steps organizations can take to become more health literate include integrating health literacy into planning, providing staff with health literacy training, providing print materials that are easy to understand and act on, and using health literacy strategies in interpersonal communications with patients.19,20In this feasibility study, we focused on the use of a health literacy environmental scan (HLES) to identify institutional or agency characteristics that enhance or inhibit access to oral health information and preventive and treatment services. Environmental scans include reviewing accessibility, signage, navigation, written communications (print materials posted in the clinic, online, and distributed to clients), and spoken communication.19 This HLES included dental clinics in Maryland located in federally qualified health centers (FQHCs) and county and city health departments. These clinics are essential safety nets that expand access to comprehensive primary and preventive health care, and provide quality, affordable health care to the underserved, underinsured, and uninsured.This HLES is part of a statewide model of oral health literacy assessment. The Maryland health literacy model has focused on prevention of dental caries among parents of young children and for children younger than 6 years. The model includes assessments of health literacy skills and knowledge and practices of caries prevention among health care providers, the public, and Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and Head Start staff.12,21–23     

Achieving Population Health in Accountable Care Organizations

Although “population health” is one of the Institute for Healthcare Improvement’s Triple Aim goals, its relationship to accountable care organizations (ACOs) remains ill-defined and lacks clarity as to how the clinical delivery system intersects with the public health system.Although defining population health as “panel” management seems to be the default definition, we called for a broader “community health” definition that could improve relationships between clinical delivery and public health systems and health outcomes for communities.We discussed this broader definition and offered recommendations for linking ACOs with the public health system toward improving health for patients and their communities.WITH THE PASSAGE OF THE Affordable Care Act (ACA),1 the United States has turned its attention to improving the quality of health care while simultaneously decreasing cost. As we move toward alternative and global payment arrangements, the need to understand the epidemiology of the patient population will become imperative. Keeping this population healthy will require enhancing our capacity to assess, monitor, and prioritize lifestyle risk factors that unduly impact individual patient health outcomes. This is especially true, given that only 10% of health outcomes are a result of the medical care system, whereas from 50% to 60% are because of health behaviors.2,3 To change health behaviors, it will be necessary to engage in activities that reach beyond the clinical setting and incorporate community and public health systems.4The Institute for Healthcare Improvement (IHI), a leading not-for-profit organization dedicated to using quality improvement strategies to achieve safe and effective health care, has developed the Triple Aim initiative5 as a rubric for health care transformation. The three linked goals of the Triple Aim include improving the experience of care, improving the health of populations, and reducing per capita costs of health care.6 However, although two of the three aims–experience of care and cost reduction–are self-explanatory, there is little consensus about how to define population health. Words like “panel management,” “population medicine,” and “population health” are being used interchangeably. Berwick et al.6 describe the care of a population of patients as the responsibility of the health care system and use broad-based community health indicators as evidence of improvement. Other recent publications have attempted to describe population health from the hospital,7–10 primary care,11 and community health center perspectives.12 The “clinical view” identifies the population as those “enrolled” in the care of a specific provider, provider or hospital system, insurer, or health care delivery network (i.e., panel population).7 Alternatively, from the public health perspective,8 population is defined by the geography of a community (i.e., community population) or the membership in a category of persons that share specific attributes (e.g., populations of elderly, minority population). In either case, the context of a community and the existing social determinants of health, ranging from poverty to housing, are known to have substantial impact on individual health outcomes. Thus, ensuring the health of a population is highly dependent on addressing these social determinants and requires collaborative relationships with community institutions outside the health care setting.13,14Two key concepts that will greatly influence the definition and actualization of population health in the post-ACA era include the accountable care organization (ACO)15 and the patient-centered medical home (PCMH).16 The ACO represents an integrated strategy at the delivery system level to respond to payment reform.15 These integrated systems of care are poised to manage a population of patients under a global payment model. The PCMH is focused on transforming primary care to better deliver “patient-centered” care and to address the whole patient, including their health and social needs.17,18 Both models will need to identify, monitor, and manage their “population” of patients. However, their ability to extend their definition of population health to encompass the entire community will depend on resources, market share, and the strength and capacity of collaborating community and public health organizations. As integrated delivery systems are asked to do more than focus on their own patients, they will require additional resources. These may come from a realignment of existing programs (community benefits), a return on investment from effective preventive care, or collaborative relationships with existing community and public health organizations.In this article, we discuss two major points regarding ACOs and their approach to population health. First, ACOs should be committed to serving the health of the people in the communities from which their population is drawn, and not just the population of patients enrolled in their care to achieve the population health goal. Second, to achieve this expanded definition of population health, ACOs will need to engage in collaborative efforts with community agencies and the public health system. We describe a “community” definition of population health to be used in lieu of the “panel” definition and then outline the resources needed and strategies for collaboration. Finally, we offer recommendations to assist ACOs in realizing their population health goal.     

Development and Validation of a 15-Item Japanese Health Knowledge Test

Background

Health literacy affects the acquisition of health knowledge and is thus linked to health outcomes. However, few scales have been developed to assess the level of health knowledge among the general public.

Methods

The 15-item Japanese Health Knowledge Test (J-HKT) was developed by using item response theory to score an item pool. We examined the construct validity of the J-HKT in relation to health literacy items, and analyzed the sociodemographic and behavioral factors associated with poor health knowledge.

Results

We enrolled 1040 adult participants (mean age, 57 years; women, 52%). The 15 items that best identified people with poor health knowledge were selected. For all items on the J-HKT, the information function curves had a peak in the negative spectrum of the latent trait. As compared with participants reporting high levels of income, educational attainment, and literacy, those with low levels of income, education, and literacy had a lower total score on the J-HKT. As compared with non/light drinkers, moderate and heavy drinkers had lower total scores on the J-HKT.

Conclusions

The J-HKT may prove useful in measuring health knowledge among the general public, and in identifying and characterizing those with poor health knowledge.Key words: health knowledge, health literacy, socioeconomic status