Is fidelity to a complex behaviour change intervention associated with patient outcomes? Exploring the relationship between dietitian adherence and competence and the nutritional status of intervention patients in a successful stepped-wedge randomised clinical trial of eating as treatment (EAT)

Table 1 Study-specific fidelity checklist

	Yes	No
Practitioner discusses the adequacy of the patient’s energy intake
Practitioner conducts a formal/standardised assessment to measure patient nutrition
Practitioner discusses how eating/nutrition is an integral part of “radiotherapy” treatment**
Practitioner encourages the patient to discuss their reason(s) for undergoing radiotherapy**
Practitioner collaboratively develops a formal, written nutrition plan with the patient**
Practitioner encourages the patient to discuss their progress towards the goals outlined on their written nutrition plan

**Adherence to these items was found to be significantly greater during intervention relative to control sessions (p<.001) [32]

ISSN: 1748-5908