Effects of Physicians' Information Giving on Patient Outcomes: a Systematic Review.

BACKGROUND: Providing diagnostic and treatment information to patients is a core clinical skill, but evidence for the effectiveness of different information-giving strategies is inconsistent. This systematic review aimed to investigate the reported effects of empirically tested communication strategies for providing information on patient-related outcomes: information recall and (health-related) behaviors. METHODS: The databases MEDLINE, Embase, PsycINFO (Ovid), Cochrane Central Register of Controlled Trials, and relevant bibliographies were systematically searched from the inception to April 24, 2020, without restrictions, for articles testing information-giving strategies for physicians (PROSPERO ID: CRD42019115791). Pairs of independent reviewers identified randomized controlled studies with a low risk of selection bias as from the Cochrane risk of bias 2 tool. Main outcomes were grouped into patient information recall and behavioral outcomes (e.g., alcohol consumption, weight loss, participation in screening). Due to high heterogeneity in the data on effects of interventions, these outcomes were descriptively reported, together with studies', interventions', and information-giving strategies' characteristics. PRISMA guidelines were followed. RESULTS: Seventeen of 9423 articles were included. Eight studies, reporting 10 interventions, assessed patient information recall: mostly conducted in experimental settings and testing a single information-giving strategy. Four of the ten interventions reported significant increase in recall. Nine studies assessed behavioral outcomes, mostly in real-life clinical settings and testing multiple information-giving strategies simultaneously. The heterogeneity in this group of studies was high. Eight of the nine interventions reported a significant positive effect on objectively and subjectively measured patients' behavioral outcomes. DISCUSSION: Using specific framing strategies for achieving specific communication goals when providing information to patients appears to have positive effects on information recall and patient health-related behaviors. The heterogeneity observed in this group of studies testifies the need for a more consistent methodological and conceptual agenda when testing medical information-giving strategies. TRIAL REGISTRATION: PROSPERO registration number: CRD42019115791.

Tested communication strategies for providing information to patients in medical consultations: A scoping review and quality assessment of the literature.

OBJECTIVES: To systematize the scientific knowledge of empirically tested strategies for verbally providing medical information in patient-physician consultations. METHODS: A scoping review searching for terms related to physician, information, oral communication, and controlled study. Four pairs of reviewers screened articles. For each selected study, we assessed the quality and summarized aspects on participants, study, intervention, and outcomes. Information provision strategies were inductively classified by types and main categories. RESULTS: After screening 9422 articles, 39 were included. The methodological quality was moderate. We identified four differently used categories of strategies for providing information: cognitive aid (n = 13), persuasive (n = 8), relationship- (n = 3), and objectivity-oriented strategies (n = 4); plus, one "mixed" category (n = 11). Strategies were rarely theoretically derived. CONCLUSIONS: Current research of tested strategies for verbally providing medical information is marked by great heterogeneity in methods and outcomes, and lack of theory-driven approaches. The list of strategies could be used to analyse real life communication. PRACTICE IMPLICATIONS: Findings may aid the harmonization of future efforts to develop empirically-based information provision strategies to be used in clinical and teaching settings.