Core Outcome Measures in Effectiveness Trials

The Delphi Technique: Developing a Consensus on Indications, Timing and Core Outcomes for Rib Fracture Surgical Fixation

General Information

The aim is to develop a consensus (agreement) on the indications and timing of rib fracture surgery in patients with rib fractures after trauma and the minimum recommended outcomes researchers should measure if undertaking a clinical study. Work by the research team has highlighted a lack of comparable outcome measures as well as no consensus on indications or evidence for the timing of surgery.

Link to protocol:

Helen Ingoe - York Trials Unit/The James Cook University Hospital - Principal Investigator
Catriona McDaid - York Trials Unit - Supervisor
Catherine Hewitt - York Trials Unit - Supervisor
Will Eardley - The James Cook University Hospital/York Trials Unit - Clinical Supervisor

Further Study Information

Current Stage:
January 2018 - August 2018
Funding source(s):
Orthopaedic Research UK

Health Area

Disease Category
Orthopaedics & trauma

Disease Name
Rib fracture

Target Population

Age Range
16 - 126


Nature / type of Intervention


Delphi process
Systematic review

The proposed research will draw on methods developed by the COMET group for development of core outcome sets.

The Delphi method will be used to achieve consensus on outcomes. Patients that have had rib fracture fixation medical staff and allied healthcare professionals involved in the care of people with a rib fracture will be asked to participate. The process will consist of online anonymous questionnaires delivered to participants lasting up to a maximum of 15 minutes. The participants are asked to rank on a scale of 1 to 9 how important the statements within the questionnaires are to them and whether they should be included in a core outcome set.
A second round will consist of statements that had a good agreement (pre-defined) and will be re-rated in the same manner. Participants will be asked to reflect on feedback from the previous round for each stakeholder group before re-rating. A maximum third round would take place if no consensus were gained in the first two rounds. Clinical experts will also be asked in addition to rate in the same manner statements on indications and timing of fixation.

Stakeholders Involved

Clinical experts
Consumers (caregivers)
Consumers (patients)

Study Type

COS for clinical trials or clinical research

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