Aabakken 1997.

Methods	RCT Risk of Bias: Moderate Trial aim: To incorporate some patient feedback into patient information brochures about endoscopic procedures, and to compare the three new brochures with the old brochure in terms of procedure‐related anxiety and general patient satisfaction.
Participants	235 patients who were summoned for endoscopic examinations were randomised to evaluate a patient information brochure developed with consumer input (n =115) compared to a brochure developed by health professionals only (n = 120). Patients were 130 women and 105 men, mean age 56 years. 124 patients (54%) had previously undergone an endoscopic procedure. Setting: Ullevaal University Hospital. Country: Norway.
Interventions	Type of process: Consumer involvement in development of patient information material. A set of three new patient information brochures about endoscopic procedures developed with input from patients (intervention) was compared to an old patient information brochure developed by health professionals (control). Patient information which was included in the new brochures was obtained via patient questionnaires.
Outcomes	Level of anxiety related to endoscopy, patient satisfaction with brochure.
Notes	This trial consisted of two parts. Consumer involvement in development of information took place in the first part, as 136 patients were surveyed about their information needs.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate