Health literacy interventions in the hospital setting: an overview

Health Literacy (HL) is the degree to which an individual has the ability to find, understand and use information and services to inform health-related decisions and actions. These decisions and actions take place mainly in hospitals, so in this setting, HL has a higher impact on the health status and prognosis of patients. The objective of this study was to identify HL interventions implemented in the hospital care setting and describe the characteristics of their implementation, as well as their impact on health outcomes and care processes of these patients. An overview of systematic reviews published from 2015 to 2020 in MEDLINE (Ovid), Embase, Scopus, Cochrane Database (Ovid), PsyArticles, LILACS (Bvs) and Epistemonikos was conducted. The synthesis of the results was carried out narratively and the methodological quality of the reviews was evaluated using the AMSTAR II tool. A total of 16 reviews were included for full analysis, of which 68.5% were assessed as having high or moderate quality. HL interventions were based on single or multifaceted strategies, including the use of brochures, visual aids, digital tools, multimedia resources (videos) and group and personalized counseling sessions. Despite the high heterogeneity of data, HL interventions seem to have a positive impact on improving health-related knowledge levels and some health-related behaviors and attitudes. In conclusion, it was evidenced that HL interventions implemented in the hospital setting are widely varied. These interventions can be used to improve health-related knowledge levels and promote health-related behavioral changes in inpatients. However, it is necessary to standardize the reporting of both the characteristics and outcomes of these interventions to favor their replicability.