Divani 2019.

Study name	The effect of using a communication board on physiological parameters and perceived quality of care in patients with artificial airways
Methods	Parallel‐group randomised controlled trial without blinding
Participants	Inclusion criteria: age 18–60 years; artificial airway; full consciousness and no use of sedative drugs; minimum literacy; speaking and understanding Persia; no hearing, sight, or cognitive problems; no history of having artificial airway; no use of drugs affecting cortisol levels; no disease and medications that affect haemodynamic parameters. Exclusion criteria: psychotic and depressive disorder; definitive or probable diagnosis of brain injury; no willingness to participate in research.
Interventions	Intervention Use of a communication board in the morning. Control Usual care including nurse frequent questioning and patient non‐verbal response.
Outcomes	Serum cortisol level. Vital signs. Quality of nursing care.
Starting date	21 October 2019
Contact information	Investigator: Anahita Divani; adivani@razi.tums.ac.ir
Notes