Plain language summaries (PLSs) have been introduced to communicate research in an understandable way to a nonexpert audience. Guidelines for writing PLSs have been developed and empirical research on PLSs has been conducted, but terminology and research approaches in this comparatively young field vary considerably. This prompted us to review the current state of the art of the theoretical and empirical literature on PLSs. The two main objectives of this review were to develop a conceptual framework for PLS theory, and to synthesize empirical evidence on PLS criteria. We began by searching Web of Science, PubMed, PsycInfo and PSYNDEX (last search 07/2021). In our review, we included empirical investigations of PLSs, reports on PLS development, PLS guidelines, and theoretical articles referring to PLSs. A conceptual framework was developed through content analysis. Empirical studies investigating effects of PLS criteria on defined outcomes were narratively synthesized. We identified 7,714 records, of which 90 articles met the inclusion criteria. All articles were used to develop a conceptual framework for PLSs which comprises 12 categories: six of PLS aims and six of PLS characteristics. Thirty-three articles empirically investigated effects of PLSs on several outcomes, but study designs were too heterogeneous to identify definite criteria for high-quality PLSs. Few studies identified effects of various criteria on accessibility, understanding, knowledge, communication of research, and empowerment. We did not find empirical evidence to support most of the criteria we identified in the PLS writing guidelines. We conclude that although considerable work on establishing and investigating PLSs is available, empirical evidence on criteria for high-quality PLSs remains scarce. The conceptual framework developed in this review may provide a valuable starting point for future guideline developers and PLS researchers.
Background Acute disease outbreaks such as the COVID-19 pandemic cause a high burden of psychological distress in people worldwide. Interventions to enable people to better cope with such distress should be based on the best available evidence. We therefore performed a scoping review to systematically identify and summarize the available literature of interventions that target the distress of people in the face of highly contagious disease outbreaks. Methods MEDLINE, Cochrane CENTRAL, Web of Science (January 2000 to May 7, 2020), and reference lists were systematically searched and screened by two independent reviewers. Quantitative and qualitative studies investigating the effects of psychological interventions before, during, and after outbreaks of highly contagious emerging infectious diseases, such as SARS, MERS, Ebola, or COVID-19 were included. Study effects were grouped (e.g. for healthcare professionals, community members, people at risk) and intervention contents at the individual and organizational level summarized. We assessed the level of evidence using a modified scheme from the Oxford Centre for Evidence-based Medicine and the Australian National Health and Medical Research Council. Results Of 4030 records found, 19 studies were included (two RCTs). Most interventions were delivered during-exposure and face-to-face, focused on healthcare workers and crisis personnel, and combined psychoeducation with training of coping strategies. Based on two high-quality studies, beneficial effects were reported for resilience factors (e.g. positive cognitive appraisal) and professional attitudes of healthcare workers, with mixed findings for mental health (e.g. depression). Across all studies, there was positive qualitative feedback from participants and facilitators. We identified seven ongoing studies mostly using online- and mobile-based deliveries. Conclusions There is preliminary evidence for beneficial effects of interventions to enable people to better cope with the distress of highly contagious emerging disease outbreaks. Besides the need for more high-quality studies, the summarized evidence may inform decision makers to plan interventions during the current pandemic and to develop pandemic preparedness plans.
ObjectiveTo analyse voluntary payment reports of pharmaceutical companies to German healthcare professionals (HCPs) in 2015 and 2016 based on an industry-self-regulating transparency codex.Design and participantsCohort study of all German HCPs who voluntarily agreed that at least one payment they received in 2015 and 2016 from pharmaceutical companies is disclosed.Main outcome measuresNumber of HCPs who disclosed at least one payment in the database; separated by year of disclosure and whether they disclosed once or repeatedly. Amount of disclosed payments and distribution parameters of disclosed annual payment sums per person; separated by year of disclosure und whether they disclosed once or repeatedly.Results28 230 HCPs agreed to the disclosure of at least one payment in the database. In 2015, 19 905 HCPs agreed to the disclosure, decreasing to 15 782 HCPs in 2016. Whereas 7457 disclosed payments in both years, 12 448 disclosed only in 2015 and 8325 only in 2016. Payments of €32 426 721 in 2015 and €23 289 343 in 2016 were disclosed, that is, 27% and 23% of the total amounts spent on HCPs, respectively. Distribution of annual payments was skewed: the top 1% of HCPs disclosed annual payment sums between €17 049 and €200 194, while the median disclosed annual payment sum per person was €536 (IQR €1092). Disclosed payments were higher in male physicians and in physicians with higher academic degree.ConclusionsIf voluntary, disclosure rates of payments are low and therefore only provide a fragmented picture of interactions between HCPs and pharmaceutical companies. Efforts must be intensified to ensure obligatory disclosure of all payments worldwide.
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