Oral nutrition support interventions for patients who are malnourished or at risk of malnutrition: a survey of clinical practice amongst UK dietitians

Nutrition intervention goals from the perspectives of patients at risk of malnutrition: A qualitative study

BACKGROUND

Nutrition counselling is characterised by a collaborative approach where the patient and the dietitian establish goals that promote health and self-management. Little is known about goal-setting in nutrition interventions of patients at risk of malnutrition. The present study aims to describe the perspectives and needs of patients at risk of malnutrition regarding goals of nutrition interventions.

METHODS

Semi-structured interviews were conducted with 15 patients from three primary care centres and one hospital in mid-Sweden selected through purposive sampling. Interview transcripts were analysed using reflexive thematic analysis following the six-phase guidelines of Braun and Clarke to identify patterns of shared meaning and themes in the data.

RESULTS

The findings highlight that the participants rarely reflected on their personal goals of the nutrition intervention. Instead, they strived to maintain strength and energy, with the nutrition counselling being seen as supportive in managing nutrition impact symptoms. They described discrepancies between their perspectives and the dietitian's regarding weight goals and the diet prescribed to gain weight.

CONCLUSIONS

The study findings suggest that elucidating patients' goals is key to counteracting the discrepancies between the dietitians' clinically oriented goals and patients' perspectives. Goal-setting is part of the dietitian's structured working process, whereas the patient's lifeworld is complex and unstructured. To provide person-centred nutrition care, new strategies and tools are needed to facilitate collaborative goal-setting. These approaches will bridge the gap between clinical goals and patients' individual needs, promoting better alignment and improved outcomes.

Oral nutritional interventions in frail older people who are malnourished or at risk of malnutrition: a systematic review

BACKGROUND

Malnutrition worsens the health of frail older adults. Current treatments for malnutrition may include prescribed oral nutritional supplements, which are multinutrient products containing macronutrients and micronutrients.

OBJECTIVE

To assess the effectiveness and cost-effectiveness of oral nutritional supplements (with or without other dietary interventions) in frail older people who are malnourished or at risk of malnutrition.

DATA SOURCES

MEDLINE, EMBASE, Cochrane Library, Scopus, CINAHL (Cumulative Index to Nursing and Allied Health Literature) and grey literature were searched from inception to 13 September 2021.

REVIEW METHODS

A systematic review and meta-analysis was conducted to evaluate the effectiveness and cost-effectiveness of oral nutritional supplements in frail older people (aged ≥ 65 years) who are malnourished or at risk of malnutrition (defined as undernutrition as per National Institute for Health and Care Excellence guidelines). Meta-analysis and network meta-analysis were undertaken, where feasible, along with a narrative synthesis. A cost-effectiveness review was reported narratively. A de novo model was developed using effectiveness evidence identified in the systematic review to estimate the cost-effectiveness of oral nutritional supplements.

RESULTS

Eleven studies (n = 822 participants) were included in the effectiveness review, six of which were fully or partly funded by industry. Meta-analyses suggested positive effects of oral nutritional supplements compared with standard care for energy intake (kcal) (standardised mean difference 1.02, 95% confidence interval 0.15 to 1.88; very low quality evidence) and poor mobility (mean difference 0.03, p < 0.00001, 95% confidence interval 0.02 to 0.04; very low quality evidence) but no evidence of an effect for body weight (mean difference 1.31, 95% confidence interval -0.05 to 2.66; very low quality evidence) and body mass index (mean difference 0.54, 95% confidence interval -0.03 to 1.11; very low quality evidence). Pooled results for other outcomes were statistically non-significant. There was mixed narrative evidence regarding the effect of oral nutritional supplements on quality of life. Network meta-analysis could be conducted only for body weight and grip strength; there was evidence of an effect for oral nutritional supplements compared with standard care for body weight only. Study quality was mixed; the randomisation method was typically poorly reported. One economic evaluation, in a care home setting, was included. This was a well-conducted study showing that oral nutritional supplements could be cost-effective. Cost-effectiveness analysis suggested that oral nutritional supplements may only be cost-effective for people with lower body mass index (< 21 kg/m2) using cheaper oral nutritional supplements products that require minimal staff time to administer.

LIMITATIONS

The review scope was narrow in focus as few primary studies used frailty measures (or our proxy criteria). This resulted in only 11 included studies. The small evidence base and varied quality of evidence meant that it was not possible to determine accurate estimates of the effectiveness or cost-effectiveness of oral nutritional supplements. Furthermore, only English-language publications were considered.

CONCLUSIONS

Overall, the review found little evidence of oral nutritional supplements having significant effects on reducing malnutrition or its adverse outcomes in frail older adults.

FUTURE WORK

Future research should focus on independent, high-quality, adequately powered studies to investigate oral nutritional supplements alongside other nutritional interventions, with longer-term follow-up and detailed analysis of determinants, intervention components and cost-effectiveness.

STUDY REGISTRATION

This study is registered as PROSPERO CRD42020170906.

FUNDING

This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 26, No. 51. See the NIHR Journals Library website for further project information.

Setting goals with patients at risk of malnutrition: A focus group study with clinical dietitians

OBJECTIVE

Setting goals collaboratively with patients is a key aspect in shared decision-making (SDM) in malnutrition interventions. The aim, therefore, was to gain an understanding of clinical dietitians' reflections regarding the process of goal-setting with patients at risk of malnutrition.

METHODS

Six semi-structured audio-recorded focus group discussions were held with registered dietitians (n = 29) from primary healthcare and hospitals in Sweden. Focus group transcripts were analysed thematically to find patterns in the data and identify themes.

RESULTS

Dietitians expressed striving to explore patients' narratives, capabilities, and resources before deciding on goals. They described different strategies in counseling patients and a lack of patient participation in the goal-setting. They emphasized the difficulties of setting feasible goals due to discrepancies between their clinically-oriented goals and patients' personal goals.

CONCLUSION

Findings highlight a gap in the process of setting goals for patients at risk of malnutrition, where patients' participation was lacking. Education in SDM, and strategies and tools to support dietitians in involving patients in goal-setting, are required to bridge the gap and promote person-centeredness.

PRACTICE IMPLICATIONS

Findings may be further used to develop tools and strategies, and design studies on the implementation of and education in SDM and goal-setting for malnutrition interventions.

Disparities in Oral Nutritional Supplement Usage and Dispensing Patterns across Primary Care in Ireland: ONSPres Project

When treating malnutrition, oral nutritional supplements (ONSs) are advised when optimising the diet is insufficient; however, ONS usage and user characteristics have not been previously analysed. A retrospective secondary analysis was performed on dispensed pharmacy claim data for 14,282 anonymised adult patients in primary care in Ireland in 2018. Patient sex, age, residential status, ONS volume (units) and ONS cost (EUR) were analysed. The categories of ‘Moderate’ (<75th centile), ‘High’ (75th–89th centile) and ‘Very High’ ONS users (≥90th centile) were created. The analyses among groups utilised t-tests, Mann–Whitney U tests and chi-squared tests. This cohort was 58.2% female, median age was 76 years, with 18.7% in residential care. The most frequently dispensed ONS type was very-high-energy sip feeds (45% of cohort). Younger males were dispensed more ONSs than females (<65 years: median units, 136 vs. 90; p < 0.01). Patients living independently were dispensed half the volume of those in residential care (112 vs. 240 units; p < 0.01). ‘Moderate’ ONS users were dispensed a yearly median of 84 ONS units (median cost, EUR 153), ‘High’ users were dispensed 420 units (EUR 806) and ‘Very High’ users 892 yearly units (EUR 2402; p < 0.01). Further analyses should focus on elucidating the reasons for high ONS usage in residential care patients and younger males.

Research identified variation in nutrition practice by community prescribing dietitians with regards to the identification and management of malnutrition amongst community dwelling adults

To improve nutritional outcomes of community dwelling adults with malnutrition we identified three related hypotheses to be tested: i) Southampton Community Prescribing Support Service dietitians achieve 100% compliance with selected standards of the National Institute for Health and Clinical Excellence Clinical Guideline (CG) 32, ii) patient service satisfaction amongst community dwelling adults accessing the prescribing support service is high (90%), and iii) nationally, dietitians use weight gain goal >10% and BMI >18.5 kg/m² as outcome measures from the service phases of prescribing support. A retrospective audit of records of 100 community-dwelling adults accessing local services considered CG32 "Indications for nutrition support in hospital and community standard 1.3.1" and CG32 "Monitoring of nutrition support in hospital and community standard 1.5.6". A questionnaire was distributed to community-dwelling adults (n = 52) accessing the service, in addition to a national survey of dietetic practice. Compliance with standard 1.3.1 was 46% and with standard 1.5.6 it was 82%. The majority of patients (86%; n = 13) reported satisfaction with the support service. Nationally, 89% (n = 51) of dietitians use weight and 87% (n = 50) use BMI as an outcome measure for success of nutritional intervention. All research hypotheses were rejected. These results suggest there is considerable variation in the identification and management of malnutrition amongst community dwelling adults, which may impact on clinical and nutritional outcomes. Future work should consider quality improvement projects to address potential barriers to achieving best practice by community prescribing dietitians through the use of nutrition pathways to support older adults with malnutrition.