Abstract
Growing evidence shows there is heterogeneity in patient communication preferences and a need to tailor communication approaches accordingly. However, little is known about the psychosocial factors that influence communication preferences. Among them is locus of control (LOC), a belief about who or what determines outcomes, including health. Although LOC theory was developed over 60 years ago as a personality theory, its relevance in healthcare has increased over the past two decades. There is a paucity of empirical evidence on patient or provider LOC as it influences communication quality and outcomes in healthcare settings. We conducted a systematic review to collate the current state of the literature.We carried out a comprehensive search of PubMed MEDLINE, Embase, PsycInfo, and Cochrane Library databases to retrieve relevant peer-reviewed articles. A total of 1152 publications were identified. Our final review included 17 articles that underwent data extraction and quality assessment.The included studies found evidence of LOC associations with several patient and provider communication-related outcomes including satisfaction with care; medical decision-making and communication preferences; adherence; and patient-provider rapport. As opposed to generalized approaches to communication, assessing patient LOC may allow clinicians to tailor their approaches to match patients' LOC. Our findings provide a starting point and highlight the need for future studies.