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Build teamwork on a solid foundation: team familiarity promotes effective interprofessional collaboration
  1. Michael A Rosen
  1. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
  1. Correspondence to Michael A Rosen, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; mrosen44{at}

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Commentary on: Iyasere CA, Wing J, Martel JN, et al. Effect of increased interprofessional familiarity on team performance, communication, and psychological safety on inpatient medical teams: a randomized clinical trial. JAMA Intern Med. 2022 Nov 1;182(11):1190–1198. doi: 10.1001/jamainternmed.2022.4373.

Implications for practice and research

Team member familiarity has a positive impact on teamwork and interprofessional communication. Organisational design should consider team member familiarity.


Interprofessional teamwork matters for patient and workforce outcomes. Familiarity of team members is associated with improved teamwork and communication, safety and quality of care, utilisation and patient outcomes. However, much of the existing research is observational in nature. This study evaluated the impact of a team member familiarity intervention on the quality of nurse and resident interactions, perceptions of organisational climate and care outcomes.


This single site randomised clinical trial …

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  • Competing interests None declared.

  • Provenance and peer review Commissioned; internally peer reviewed.