Improving transparent team communication with the 'Glass Door' decal communication tool: a mixed methods analysis of family and staff perspectives.

The GD decal communication tool, visible on the patient's door, improved ICU HCPs' perceived knowledge of their patient's plan. The GD improved the shared mental model, facilitated teaching and information transfer and fostered family engagement. Challenges included knowing the rules for use and consistent application. Concerns initially raised by HCPs about confidentiality were denied by families.