Recruitment and Retention Strategies for Randomized Clinical Trials Involving Family Members of ICU Patients.

Objectives: To review recruitment and retention strategies of randomized family-centered interventional studies in adult ICUs.

Data Sources: The MEDLINE, Embase, PsycINFO, CINAHL, and the Cochrane Library database from inception to February 2023.

Study Selection: Randomized controlled trials with family-centered interventions in the ICU setting that reported at least one family-centered outcome that were included in our previously published systematic review.