Agency for Healthcare Research and Quality.

Research reveals that the opportunities for healthy choices in homes, neighborhoods, schools, and workplaces can have decisive impacts on health. This article reviews scientific evidence from promising interventions focused on the social determinants of health, and describes ways in which they can improve population health and reduce health disparities. We show that there is sufficient evidence to support policy interventions targeted at education and early childhood; urban planning and community development; housing; income enhancements and supplements; and employment. When available, cost-effectiveness evaluations show that these interventions lead to long-term societal savings; however, more routine attention to cost considerations is needed for these interventions. We also discuss challenges to implementation, including the need for long-term financing in order to scale-up effective interventions for implementation at the local, state, or national level. Although we know enough to act, questions remain about how to optimally scale-up these interventions and maximize their benefits for the most vulnerable populations.

Health literacy is the degree to which individuals are able to access and process basic health information and services and thereby participate in health-related decisions. Limited health literacy is highly prevalent in the United States and is strongly associated with patient morbidity, mortality, healthcare use, and costs. The objectives of this American Heart Association scientific statement are (1) to summarize the relevance of health literacy to cardiovascular health; (2) to present the adverse associations of health literacy with cardiovascular risk factors, conditions, and treatments; (3) to suggest strategies that address barriers imposed by limited health literacy on the management and prevention of cardiovascular disease; (4) to demonstrate the contributions of health literacy to health disparities, given its association with social determinants of health; and (5) to propose future directions for how health literacy can be integrated into the American Heart Association's mandate to advance cardiovascular treatment and research, thereby improving patient care and public health. Inadequate health literacy is a barrier to the American Heart Association meeting its 2020 Impact Goals, and this statement articulates the rationale to anticipate and address the adverse cardiovascular effects associated with health literacy.

Low literacy increased the risk of hospitalization for ambulatory patients with heart failure. Interventions designed to mitigate literacy-related disparities in outcomes are warranted.

Background Self-care training can reduce hospitalization for heart failure (HF), and more intensive intervention may benefit more vulnerable patients, including those with low literacy. Methods and Results A 1-year, multisite, randomized controlled comparative effectiveness trial with 605 patients with HF. Those randomized to single session received a 40-minute in-person, literacy-sensitive training; the multisession group received the same initial training and then ongoing telephone-based support. The primary outcome was combined incidence of all-cause hospitalization or death; secondary outcomes included HF-related hospitalization and HF-related quality of life (HFQOL) with pre-specified stratification by literacy. Overall, the incidence of all-cause hospitalization and death did not differ between intervention groups (incidence rate ratio (IRR)=1.01 (95% Confidence Interval (CI): 0.83, 1.22). The effect of multisession training compared with single session training differed by literacy group: among low literacy, multisession yielded lower incidence of all-cause hospitalization and death: IRR=0.75 (0.45,1.25); and among higher literacy, multisession yielded higher incidence: IRR=1.22 (0.99,1.50) (interaction p=0.048). For HF-related hospitalization: among low literacy, multisession yielded lower incidence: IRR=0.53 (95% CI: 0.25,1.12); and among higher literacy, multisession yielded higher incidence: IRR=1.32 (95% CI: 0.92,1.88) (interaction p=0.005). HFQOL improved more for patients receiving multisession compared with single session at 1 and 6 months, but the difference at 12 months was smaller. Effects on HFQOL did not differ by literacy. Conclusions Overall, an intensive multisession intervention did not change clinical outcomes compared with a single session intervention. People with low literacy appear to benefit more from multisession than people with higher literacy. Clinical Trial Registration Information ClinicalTrials.gov; Identifier: NCT00378950.