This study aims to understand the experience of the dietetic consultation from the perspective of nutritionally vulnerable older patients receiving oral nutrition support and dietitians, as well as other key stakeholders involved in the process of such a consultation.

Malnutrition is prevalent and increases the risk of health complications and socioeconomic burden. Patients with malnutrition are often older patients with complex needs and therefore may require specialist knowledge and skills to provide nutritional support. Dietitians are uniquely skilled to assess the multiple factors that underpin diet and to tailor nutritional support, which could help improve outcomes. Although the causes of malnutrition are complicated, its treatment typically involves oral nutritional supplements, dietary advice or food-based interventions, either separately or in combination.

Effectiveness of the various oral nutritional support interventions has been studied, with the findings on food-based interventions suggesting more research is needed and the widespread research on ONS suggesting contradictory results and interpretations. Despite this, the factors responsible for these inconsistencies have not been identified. There are no studies so far that have examined the patient experience of the consultation with the dietitian in the context of nutritional support. Although the patient experience of consultations is increasingly being recognised as an important part of investigating their effectiveness in healthcare, to date, there are a number of limitations in this literature, leaving the role of the patient experience in dietetic consultations for the management of malnutrition, poorly understood. It's probable that this is one contributing factor to the variation observed in the literature.

A review of the literature indicates a need for exploration of the patient experience and its possible impact on the success or failure of the dietetic encounter. This study aims to address some of the knowledge gaps. The use of qualitative interviews will allow an in-depth understanding of the experience of the dietetic consultation for the provision of nutrition support and will utilise an overall illuminative evaluation approach to broaden that understanding by considering data from various sources. Participants will include older patients who are considered nutritionally vulnerable, their consulting dietitians and patient-nominated key stakeholders. Four clinical settings within the Trust where dietitians would often see patients for nutritional support will be included.

Inclusion Criteria:

Patients:

• Adults (aged > 60 years)
• National Health Service (NHS) number
• Capable of giving informed consent
• Able to communicate well in English
• Nutritionally vulnerable according to the Nutrition Screening Tool in use at the NHS Trust prompting referral to a dietitian
• Likely to receive a form of oral nutrition support in the management of malnutrition
• A variety of the patient characteristics detailed earlier will be included where possible
• Consents to having their qualitative interview audio-recorded (Group 2)

Dietitians:

• Consulting dietitian providing the nutritional advice to patient above
• Employee of the NHS Trust and member of the Nutrition & Dietetic team
• Minimum of three different dietitians across the healthcare settings to be included
• Consents to having their qualitative interview audio-recorded

Key Stakeholders:

Up to 2 optional patient-nominated key stakeholders who are involved in the dietetic consultation and success of the dietetic intervention e.g. other HCP, family member, carer or friend. Their criteria for inclusion will include:

• Nominated by the patient (from Group 2) participating in the study
• Involved in some aspect of the implementation of goals agreed between the patient and dietitian during the consultation i.e. the nutritional intervention
• Available for separate interview at a mutually agreed location
• Capable of giving informed consent
• Able to communicate well in English
• Consents to having their qualitative interview audio-recorded

Exclusion Criteria:

Patients:

• Participated or due to participate in another aspect of the study i.e. a patient will not be recruited to participate in consultation observations if they have already been or due to be recruited to take part in the qualitative interviews and vice versa.
• Outside of stated age range for inclusion
• Incapable of giving informed consent
• No National Health Service (NHS) number
• Unable to communicate well in English
• Not considered nutritionally vulnerable according to Nutrition Screening Tool
• Not referred to a dietitian for nutrition support
• Patients receiving artificial nutrition support
• Does not wish to have their qualitative interview audio-recorded (Group 2)

Participants with visual or hearing impairment or other physical disabilities will NOT be excluded from the study.

Patients:

Older patients malnourished or at risk of malnutrition requiring oral nutritional support from a dietitian in a range of clinical settings.

Dietitians:

Consulting registered dietitian providing the nutritional advice to patient above

Key Stakeholders:

Up to 2 optional patient-nominated key stakeholders who are involved in the dietetic consultation and success of the dietetic intervention e.g. other HCP, carer or family member.

From participant recruitment date until the final date when their research activities were completed - on average < 3 months.

Please note these data were not routinely collected unless the patient died after providing consent but before their research activity (consultation observation or qualitative interview) was completed.