Impact of serving method on the consumption of nutritional supplement drinks: randomized trial in older adults with cognitive impairment

ESPEN guideline on nutrition and hydration in dementia - Update 2024

BACKGROUND & AIMS

Dementia is accompanied by a variety of changes that result in an increased risk of malnutrition and low-intake dehydration. This guideline update aims to give evidence-based recommendations for nutritional care of persons with dementia in order to prevent and treat these syndromes.

METHODS

The previous guideline version was reviewed and expanded in accordance with the standard operating procedure for ESPEN guidelines. Based on a systematic search in three databases, strength of evidence of appropriate literature was graded by use of the SIGN system. The original recommendations were reviewed and reformulated, and new recommendations were added, which all then underwent a consensus process.

RESULTS

40 recommendations for nutritional care of older persons with dementia were developed and agreed, seven at institutional level and 33 at individual level. As a prerequisite for good nutritional care, organizations caring for persons with dementia are recommended to employ sufficient qualified staff and offer attractive food and drinks with choice in a functional and appealing environment. Nutritional care should be based on a written care concept with standardized operating procedures. At the individual level, routine screening for malnutrition and dehydration, nutritional assessment and close monitoring are unquestionable. Oral nutrition may be supported by eliminating potential causes of malnutrition and dehydration, and adequate social and nursing support (including assistance, utensils, training and oral care). Oral nutritional supplements are recommended to improve nutritional status but not to correct cognitive impairment or prevent cognitive decline. Routine use of dementia-specific ONS, ketogenic diet, omega-3 fatty acid supplementation and appetite stimulating agents is not recommended. Enteral and parenteral nutrition and hydration are temporary options in patients with mild or moderate dementia, but not in severe dementia or in the terminal phase of life. In all stages of the disease, supporting food and drink intake and maintaining or improving nutrition and hydration status requires an individualized, comprehensive approach. Due to a lack of appropriate studies, most recommendations are good practice points.

CONCLUSION

Nutritional care should be an integral part of dementia management. Numerous interventions are available that should be implemented in daily practice. Future high-quality studies are needed to clarify the evidence.

Management Strategies and Nursing Activities for Nutritional Care in Hospitalized Patients with Cognitive Decline: A Scoping Review

Cognitive impairment and dementia can negatively impact the nutritional capacities of older people. Malnutrition is common in hospitalized frail elderly people with cognitive impairment and negatively affects prognosis. Malnutrition worsens the quality of life and increases morbidity and mortality. This scoping review aimed to identify factors affecting the risk of malnutrition and preventive strategies in hospitalized patients with cognitive impairment, focusing on nursing interventions. The authors researched population, context, and concept in international databases of nursing interest. Full texts that met the inclusion criteria were selected and reviewed. The extracted data were subject to thematic analysis. A five-stage approach, already reported in the scientific literature, was utilized in the following scoping review. Of 638 articles yielded, 9 were included. Two focus areas were identified as follows: (1) prevalence and risk factors of malnutrition in older patients with cognitive decline; (2) nursing strategies used to enhance clinical outcomes. Nursing health interventions aim to recognize and reduce malnutrition risk, positively impacting this phenomenon. A multidisciplinary team is essential to meet the nutritional needs of these patients.

Feasibility and Acceptability Testing of Evidence-Based Hydration Strategies for Residential Care

The current study examined stakeholder perspectives on the perceived effectiveness, feasibility, and acceptability of 20 evidence-based strategies appropriate for residential care via an online survey (N = 162). Most participants worked in long-term care (83%), were direct care providers (62%), worked in food/nutrition roles (55%), and identified as female (94%). Strategies that were rated as effective, feasible, and likely to be used in the future were social drinking events, increased drink options at meals, and pre-thickened drinks. Participants also listed their top strategies for inclusion in a multicomponent intervention. Responses to open-ended questions provided insight on implementation, compliance, and budget constraints. Participant perspectives provide insight into developing a multicomponent intervention. Strategies prioritized for such an intervention include: staff education, social drinking opportunities, drinks trolley, volunteer support, improved beverage availability, hydration reminders, offering preferred beverages, and prompting residents to drink using various cues. [Research in Gerontological Nursing, 15(1), 27-38.].

Factors Affecting Adherence, Intake, and Perceived Palatability of Oral Nutritional Supplements: A Literature Review

Oral nutritional supplements (ONS) are a clinically effective and relatively inexpensive way to supplement the diet of patients with, or at risk of, undernutrition. Good adherence is a primary determinant of the effectiveness of ONS. However adherence can be problematic for those with the greatest clinical need, such as undernourished older adults. This review aimed to appraise the available literature for the factors (contextual, personal and product related) affecting patient adherence and perceived palatability of ONS, identify areas requiring improvement and uncover gaps in the evidence to guide the focus of future research. Contextual factors identified were healthcare staff and the timing of administration. Personal factors included sensory changes and motivation which alter experience of and desire to consume ONS. The product's sensory characteristics determined palatability and intake, but undesirable attributes, such as off-flavours, can stem from nutritional ingredients. The contribution made by aroma to older adults' experience of ONS was a comparatively under-researched area. Further research should address this evidence gap to optimise the flavour, aroma profile and palatability for undernourished older consumers, thereby optimising intake. A combined multidisciplinary effort involving strategic expansion of research, industry development and clinical practice should simultaneously address the factors identified, to provide the best approach to improve adherence.

Interventions to Improve Hydration in Older Adults: A Systematic Review and Meta-Analysis

Dehydration is common in the elderly, especially when hospitalised. This study investigated the impact of interventions to improve hydration in acutely unwell or institutionalised older adults for hydration and hydration linked events (constipation, falls, urinary tract infections) as well as patient satisfaction. Four databases were searched from inception to 13 May 2020 for studies of interventions to improve hydration. Nineteen studies (978 participants) were included and two studies (165 participants) were meta-analysed. Behavioural interventions were associated with a significant improvement in hydration. Environmental, multifaceted and nutritional interventions had mixed success. Meta-analysis indicated that groups receiving interventions to improve hydration consumed 300.93 mL more fluid per day than those in the usual care groups (95% CI: 289.27 mL, 312.59 mL; I² = 0%, p < 0.00001). Overall, there is limited evidence describing interventions to improve hydration in acutely unwell or institutionalised older adults. Behavioural interventions appear promising. High-quality studies using validated rather than subjective methods of assessing hydration are needed to determine effective interventions.

Health, social care and technological interventions to improve functional ability of older adults living at home: An evidence and gap map

Background

By 2030, the global population of people older than 60 years is expected to be higher than the number of children under 10 years, resulting in major health and social care system implications worldwide. Without a supportive environment, whether social or built, diminished functional ability may arise in older people. Functional ability comprises an individual's intrinsic capacity and people's interaction with their environment enabling them to be and do what they value.

Objectives

This evidence and gap map aims to identify primary studies and systematic reviews of health and social support services as well as assistive devices designed to support functional ability among older adults living at home or in other places of residence.

Search Methods

We systematically searched from inception to August 2018 in: MEDLINE, EMBASE, Cochrane Database of Systematic Reviews, CENTRAL, CINAHL, PsycINFO, AgeLine, Campbell Library, ASSIA, Social Science Citation Index and Social Policy & Practice. We conducted a focused search for grey literature and protocols of studies (e.g., ProQuest Theses and Dissertation Global, conference abstract databases, Help Age, PROSPERO, Cochrane and Campbell libraries and ClinicalTrials.gov).

Selection Criteria

Screening and data extraction were performed independently in duplicate according to our intervention and outcome framework. We included completed and on-going systematic reviews and randomized controlled trials of effectiveness on health and social support services provided at home, assistive products and technology for personal indoor and outdoor mobility and transportation as well as design, construction and building products and technology of buildings for private use such as wheelchairs, and ramps.

Data Collection and Analysis

We coded interventions and outcomes, and the number of studies that assessed health inequities across equity factors. We mapped outcomes based on the International Classification of Function, Disability and Health (ICF) adapted categories: intrinsic capacities (body function and structures) and functional abilities (activities). We assessed methodological quality of systematic reviews using the AMSTAR II checklist.

Main Results

After de-duplication, 10,783 records were screened. The map includes 548 studies (120 systematic reviews and 428 randomized controlled trials). Interventions and outcomes were classified using domains from the International Classification of Function, Disability and Health (ICF) framework. Most systematic reviews (n = 71, 59%) were rated low or critically low for methodological quality.The most common interventions were home-based rehabilitation for older adults (n = 276) and home-based health services for disease prevention (n = 233), mostly delivered by visiting healthcare professionals (n = 474). There was a relative paucity of studies on personal mobility, building adaptations, family support, personal support and befriending or friendly visits. The most measured intrinsic capacity domains were mental function (n = 269) and neuromusculoskeletal function (n = 164). The most measured outcomes for functional ability were basic needs (n = 277) and mobility (n = 160). There were few studies which evaluated outcome domains of social participation, financial security, ability to maintain relationships and communication.There was a lack of studies in low- and middle-income countries (LMICs) and a gap in the assessment of health equity issues.

Authors' Conclusions

There is substantial evidence for interventions to promote functional ability in older adults at home including mostly home-based rehabilitation for older adults and home-based health services for disease prevention. Remotely delivered home-based services are of greater importance to policy-makers and practitioners in the context of the COVID-19 pandemic. This map of studies published prior to the pandemic provides an initial resource to identify relevant home-based services which may be of interest for policy-makers and practitioners, such as home-based rehabilitation and social support, although these interventions would likely require further adaptation for online delivery during the COVID-19 pandemic. There is a need to strengthen assessment of social support and mobility interventions and outcomes related to making decisions, building relationships, financial security, and communication in future studies. More studies are needed to assess LMIC contexts and health equity issues.

Experiences and needs of home caregivers for enteral nutrition: A systematic review of qualitative research

AIMS

To systematically identify, evaluate and synthesize the qualitative evidence on enteral nutrition of home caregivers.

DESIGN

A qualitative evidence synthesis using the Sandelowski and Barroso methodology.

DATA SOURCES

We reviewed articles from eight databases: CINAHL, Embase, PubMed, Web of Science, Cochrane, CNKI, Wanfang Data and CSTJ. Qualitative, peer-reviewed, original studies published in English or Chinese before April 2020 on home caregivers' experience and needs for enteral nutrition were included. The studies were selected by screening titles, abstracts and full texts, and the quality of each study was assessed by two researchers independently.

REVIEW METHODS

Two researchers independently used qualitative assessment and review tools for quality assessment and thematic synthesis for data analysis.

RESULTS

This review included 10 articles. The themes identified included balance the enteral nutrition, the experiences and feelings in practice and the recommendations to meet challenge.

CONCLUSION

Home caregivers reported that they played an important role and faced greater pressure. Future studies should establish a systematic and standardized follow-up schedule to improve home caregivers' physical and mental health.

IMPACT

The findings established that home caregivers experienced not only changes in their roles and concerns but also spiritual changes. Home caregivers develop different coping strategies to adapt to enteral nutrition without standardized training and support. Although home caregivers make much account of enteral nutrition and feeding issues, they lack of information and support services. Understanding existing problems from a caregiver's perspective can allow interventions to be more clearly developed and well-established training standards established in the future.

High frequency of non-compliance with quality indicators during oral nutrition support in hospitalized patients

BACKGROUND & AIMS

Quality indicators are important tools in clinical practice for assessing and monitoring the quality of care in nutritional therapy. Application of these indicators can improve care and may help to decrease the high frequency of malnutrition and associated hospital costs. Therefore, the purpose of the present study was to estimate the frequency of oral nutritional supplements (ONS) use and to evaluate compliance with the four available quality indicators in oral nutritional therapy (QIONT) in a university hospital.

METHODS

A prospective study was conducted from November 2017 to May 2018, using data from all patients with an ONS prescription aged 18 years or older admitted to the medical clinical or surgical clinical wards. Four indicators were investigated, as recommended by the International Life Science Institute.

RESULTS

Of the 727 hospitalized patients in the included wards, 214 were on ONS. The frequency of ONS prescription was 29.4%. Of the 4 QIONT evaluated, none achieved the goals: frequency of subjective global assessment and reassessment nutritional (48.1% and 5.6%, respectively); frequency of non-compliance for the indication of ONS (73.36%); and fasting over 24 h during ONS (50%).

CONCLUSION

A high frequency of non-compliance (100% of QIONT) was observed in hospitalized patients on ONS in medical clinical and surgical clinical wards. These results will enable health professionals in the evaluated service to elaborate protocols to improve the evaluation and recording of the nutritional follow-up of hospitalized patients on ONS. This will help to improve the quality of nutritional care.

Institutionalized elderly people with dementia: an integrative review on nursing care

OBJECTIVE

To ascertain the characteristics of the nursing care provided to institutionalized elderly people with dementia.

METHODS

Integrative review of studies published between 2013 and 2017, in English, Spanish, and Portuguese, from the databases BDENF, LILACS, CINAHL, PubMed, SciELO, TRIP, and National Guideline Clearing House. Thematic data analysis was used.

RESULTS

From the data collected in the 41 included studies, three themes emerged: Care with a focus on the needs of elderly people in LTCIEs; Care based on the work process of the nursing team; and Shared care. Final considerations: Elderly care can take place from different perspectives: that of the elderly; the nursing team; and it can be shared among the different parties involved. The importance of communication must be stressed, as do the development of skills and attitudes of the team, as well as proper training and support, good environment in the care process, and an approach centered on the institutionalized elderly.

Efficacy of Mealtime Interventions for Malnutrition and Oral Intake in Persons With Dementia: A Systematic Review

Malnutrition and weight loss are highly prevalent in persons with Alzheimer's disease and related dementias. Oral intake is an important interventional target for addressing these nutritional consequences. However, the efficacy of interventions remains poorly understood as prior syntheses have failed to examine the impact of intervention approaches on malnutrition and hypothesized mechanisms of action in persons with dementia. This review aimed to determine the efficacy of mealtime interventions to improve oral intake and nutritional outcomes in persons with dementia. Four databases yielded 1712 studies, resulting in 32 studies that met inclusion criteria. Studies included education, environmental modifications, feeding, oral supplementation, and other pharmacologic/ecopsychological interventions. While the majority of studies reported statistically significant improvements in at least 1 nutritional outcome, study design and outcome measures were heterogenous with many lacking adequate statistical power or blinding. Collectively, we found moderate evidence to suggest the efficacy of oral supplementation, and preliminary evidence to suggest that feeding interventions, education, and environmental modifications may confer improvements. Findings clarify the state of existing evidence regarding various interventional strategies for improving malnutrition in persons with dementia. While some approaches are promising, adequately powered and rigorously designed multidimensional intervention trials are needed to inform clinical decision-making in real-world contexts.

Strategies to prevent dehydration in older people with dementia: a literature review

Dehydration is prevalent in hospitalised older people and residents in care homes, and older people with dementia are particularly at risk. A literature review was conducted to determine the evidence-based interventions used to prevent and manage dehydration in older people with dementia. Three databases were searched for relevant literature: Applied Social Sciences Index and Abstracts, Cumulative Index to Nursing and Allied Health Literature, and MEDLINE, alongside hand-searching. In-depth reading of the 12 studies included in this literature review was undertaken. Five themes were identified in relation to the hydration of older people: physical and social environment; staff communication strategies; access to drinks; drinking vessels; and individual preferences. The evidence suggests that dehydration in older people with dementia is an ongoing concern that needs to be addressed. There is evidence supporting the use of essential nursing interventions to improve hydration, such as coloured cups and verbal prompts, but less is known about the barriers preventing nurses from implementing these evidence-based interventions.

Hydration Interventions for older people living in residential and nursing care homes: overview of the literature

INTRODUCTION

Care home populations experiencing high levels of multi-morbidity and dementia require support from caregivers to meet their hydration requirements. This article provides an overview of literature related to hydration interventions and highlights gaps in knowledge.

SOURCES OF DATA

This paper draws on UK-focused literature from Applied Social Sciences Index and Abstracts (ASSIA), CINAHL, Medline, Proquest Hospital Premium Collection, Cochrane Library and RCN databases on hydration interventions for older people living with multi-morbidity and dementia in care homes.

AREAS OF AGREEMENT

Fluid intake is too low in care home residents, and no single hydration intervention is effective in addressing the complex problems that older residents present.

AREAS OF CONTROVERSY

There is a lack of consensus about how much fluid an older person should consume daily for optimum health. There is also lack of agreement about what interventions are effective in supporting individuals with complex physical and cognitive problems to achieve daily fluid intake targets.

GROWING POINTS

To improve hydration care for residents, care home teams should be competent in the delivery of hydration care, and work closely with integrated multi-professional healthcare specialists to provide proactive case management.

AREAS TIMELY FOR DEVELOPING RESEARCH

There is a need for understanding of what hydration practices and processes are effective for care home residents and including these in multi-component interventions.

Promoting mealtime function in people with dementia: A systematic review of studies undertaken in residential aged care

BACKGROUND

Dementia is one of the most prevalent conditions in older adults in residential aged care. Dementia has a significant impact on a person's ability to eat, drink and participate in mealtime activities. Dementia impacts memory, appetite, gross and fine motor skills, communication skills, mood and social behaviours, all of which can decrease the person's ability to engage in a meal.

OBJECTIVES

The objective was to review the literature on strategies to promote mealtime function in people with dementia living in residential aged care and assess their effectiveness. The review considered studies reporting outcome measures that related to nutritional status, communication, behaviour and eating skills and ability.

DESIGN

Systematic review using the Joanna Briggs Institute review methods.

DATA SOURCES

Seven databases (MEDLINE, CINAHL, Cochrane Database of Systematic Reviews, EMBASE, Current Contents, PsycINFO and Allied and Complementary Medicine Database) were searched for research published 2000-2017 in English. Eligible studies included quantitative studies reporting a mealtime intervention delivered to people with dementia in residential aged care compared with standard care reporting nutritional, behavioural or functional outcomes, including observation studies with no comparator.

REVIEW METHODS

Studies were screened and independently appraised by two reviewers using Joanna Briggs Institute (JBI) critical appraisal tools based on study design. Data was extracted from eligible studies using JBI extraction tables that assess study design, population characteristics, intervention and comparator, outcome measures and findings. Results related to mealtime function were tabulated and reported in narrative format.

RESULTS

136 studies were identified, of which 20 were eligible for inclusion. Studies reported strategies related to: food presentation; meal styles; environment adaptations; skills training; music therapy and animal-assisted therapy. Outcomes included measures of nutritional status, communication and behavioural and psychological symptoms of dementia. Low quality evidence suggested that playing music and introducing fish to the dining room may improve the food intake of people with dementia by a small amount. Montessori and spaced retrieval programs also demonstrated some positive impact on eating skills and nutritional intake. Animal-assisted therapy also demonstrated small statistically significant improvements in weight and body mass index.

CONCLUSION

There is insufficient evidence to highly recommend any specific intervention to improve mealtime functional ability in people with dementia. Further research is required through robust study designs using valid and reliable outcome measures to demonstrate clinically significant effects for mealtime interventions.

Refusal and resistance to care by people living with dementia being cared for within acute hospital wards: an ethnographic study

Background

The acute hospital setting has become a key site of care for people living with dementia. The Department of Health and Social Care recognises that as many as one in four acute hospital beds in the UK will be occupied by a person living with dementia at any given time. However, people living with dementia are a highly vulnerable group within the hospital setting. Following an acute admission, their functional abilities can deteriorate quickly and significantly. Detailed research is required to understand the role and needs of health-care staff caring for this patient population and to explore what constitutes ‘good care’ for people living with dementia within the acute setting.

Objectives

The focus of this study was a common but poorly understood phenomenon within the acute setting: refusal and resistance to care. Our research questions were ‘How do ward staff respond to resistance to everyday care by people living with dementia being cared for on acute hospital wards?’ and ‘What is the perspective of patients and their carers?’.

Design

This ethnography was informed by the symbolic interactionist research tradition, focusing on understanding how action and meaning are constructed within a setting. In-depth evidence-based analysis of everyday care enabled us to understand how ward staff responded to the care needs of people living with dementia and to follow the consequences of their actions.

Setting

This ethnography was carried out on 155 days (over 18 months) in 10 wards within five hospitals across England and Wales, which were purposefully selected to represent a range of hospital types, geographies and socioeconomic catchments.

Participants

In addition to general observations, 155 participants took part directly in this study, contributing to 436 ethnographic interviews. Ten detailed case studies were also undertaken with people living with dementia.

Results

We identified high levels of resistance to care among people living with dementia within acute hospital wards. Every person living with dementia observed within an acute hospital ward resisted care at some point during their admission.

Limitations

Limitations identified included the potential for the Hawthorne or researcher effect to influence data collection and establishing the generalisability of findings.

Conclusions

Ward staff typically interpreted resistance as a feature of a dementia diagnosis, which overshadowed the person. However, resistance to care was typically a response to ward organisation and delivery of care and was typically rational to that person’s present ontology and perceptions. In response, nurses and health-care assistants used multiple interactional approaches that combined highly repetitive language with a focus on completing essential care on the body, which itself had a focus on the containment and restraint of the person in their bed or at their bedside. These approaches to patient care were a response to resistance but also a trigger for resistance, creating cycles of stress for patients, families and ward staff. The findings have informed the development of simple, no-cost innovations at the interactional and organisational level. A further study is examining continence care for people living with dementia in acute hospital settings.

Funding

The National Institute for Health Research Health Services and Delivery Research programme.

Supportive interventions for enhancing dietary intake in malnourished or nutritionally at-risk adults

BACKGROUND

Supportive interventions such as serving meals in a dining room environment or the use of assistants to feed patients are frequently recommended for the management of nutritionally vulnerable groups. Such interventions are included in many policy and guideline documents and have implications for staff time but may incur additional costs, yet there appears to be a lack of evidence for their efficacy.

OBJECTIVES

To assess the effects of supportive interventions for enhancing dietary intake in malnourished or nutritionally at-risk adults.

SEARCH METHODS

We identified publications from comprehensive searches of the Cochrane Library, MEDLINE, Embase, AMED, British Nursing Index, CINAHL, SCOPUS, ISI Web of Science databases, scrutiny of the reference lists of included trials and related systematic reviews and handsearching the abstracts of relevant meetings. The date of the last search for all databases was 31 March 2013. Additional searches of CENTRAL, MEDLINE, ClinicalTrials.gov and WHO ICTRP were undertaken to September 2016. The date of the last search for these databases was 14 September 2016.

SELECTION CRITERIA

Randomised controlled trials of supportive interventions given with the aim of enhancing dietary intake in nutritionally vulnerable adults compared with usual care.

DATA COLLECTION AND ANALYSIS

Three review authors and for the final search, the editor, selected trials from titles and abstracts and independently assessed eligibility of selected trials. Two review authors independently extracted data and assessed risk of bias, as well as evaluating overall quality of the evidence utilising the GRADE instrument, and then agreed as they entered data into the review. The likelihood of clinical heterogeneity amongst trials was judged to be high as trials were in populations with widely different clinical backgrounds, conducted in different healthcare settings and despite some grouping of similar interventions, involved interventions that varied considerably. We were only able, therefore, to conduct meta-analyses for the outcome measures, 'all-cause mortality', 'hospitalisation' and 'nutritional status (weight change)'.

MAIN RESULTS

Forty-one trials (10,681 participants) met the inclusion criteria. Trials were grouped according to similar interventions (changes to organisation of nutritional care (N = 13; 3456 participants), changes to the feeding environment (N = 5; 351 participants), modification of meal profile or pattern (N = 12; 649 participants), additional supplementation of meals (N = 10; 6022 participants) and home meal delivery systems (N = 1; 203 participants). Follow-up ranged from 'duration of hospital stay' to 12 months.The overall quality of evidence was moderate to very low, with the majority of trials judged to be at an unclear risk of bias in several risk of bias domains. The risk ratio (RR) for all-cause mortality was 0.78 (95% confidence interval (CI) 0.66 to 0.92); P = 0.004; 12 trials; 6683 participants; moderate-quality evidence. This translates into 26 (95% CI 9 to 41) fewer cases of death per 1000 participants in favour of supportive interventions. The RR for number of participants with any medical complication ranged from 1.42 in favour of control compared with 0.59 in favour of supportive interventions (very low-quality evidence). Only five trials (4451 participants) investigated health-related quality of life showing no substantial differences between intervention and comparator groups. Information on patient satisfaction was unreliable. The effects of supportive interventions versus comparators on hospitalisation showed a mean difference (MD) of -0.5 days (95% CI -2.6 to 1.6); P = 0.65; 5 trials; 667 participants; very low-quality evidence. Only three of 41 included trials (4108 participants; very low-quality evidence) reported on adverse events, describing intolerance to the supplement (diarrhoea, vomiting; 5/34 participants) and discontinuation of oral nutritional supplements because of refusal or dislike of taste (567/2017 participants). Meta-analysis across 17 trials with adequate data on weight change revealed an overall improvement in weight in favour of supportive interventions versus control: MD 0.6 kg (95% CI 0.21 to 1.02); 2024 participants; moderate-quality evidence. A total of 27 trials investigated nutritional intake with a majority of trials not finding marked differences in energy intake between intervention and comparator groups. Only three trials (1152 participants) reported some data on economic costs but did not use accepted health economic methods (very low-quality evidence).

AUTHORS' CONCLUSIONS

There is evidence of moderate to very low quality to suggest that supportive interventions to improve nutritional care results in minimal weight gain. Most of the evidence for the lower risk of all-cause mortality for supportive interventions comes from hospital-based trials and more research is needed to confirm this effect. There is very low-quality evidence regarding adverse effects; therefore whilst some of these interventions are advocated at a national level clinicians should recognise the lack of clear evidence to support their role. This review highlights the importance of assessing patient-important outcomes in future research.

That's why I take my ONS. Means-end chain as a novel approach to elucidate the personally relevant factors driving ONS consumption in nutritionally frail elderly users

Oral nutritional supplements (ONS) are a recommended form of nutritional intervention for older malnourished persons when a 'food first' approach and/or food fortification prove ineffective. The efficacy of ONS will depend on, amongst other factors, whether persons do, or do not, consume their prescribed amount. Factors influencing ONS consumption can be product, context, or person related. Whereas product and context have received some attention, little is known about the person factors driving ONS consumption. In addition, the relative importance of the product, context, and person factors to ONS consumption is not known. Using the means-end chain (MEC) method, the current study elucidated personally relevant factors (product, context, and person factors) related to ONS consumption in two groups of older nutritionally frail ONS users: community-dwelling persons and care home residents with mainly somatic disorders. To our knowledge, the current work is the first to apply the MEC method to study older nutritionally frail ONS users. Forty ONS users (n = 20 per group) were recruited via healthcare professionals. The level of frailty was assessed using the FRAIL scale. Both groups were interviewed for 30 to 45 minutes using the soft laddering technique. The laddering data were analysed using LadderUX software™. The MEC method appeared to work well in both groups. The majority of the participants took ONS on their doctor's or dietician's prescription as they trusted their advice. The community-dwelling group took ONS to prolong their independence, whereas the care home group reported values that related more to small improvements in quality of life. In addition, care home residents perceived themselves as dependent on their caregiver for their ONS arrangements, whereas this dependence was not reported by community-dwelling persons. Key insights from this work will enable doctors and dieticians to customize their nutritional interventions to ONS users' personal needs and thus positively impact health outcomes.

Increasing fluid intake and reducing dehydration risk in older people living in long-term care: a systematic review

OBJECTIVE

To assess the efficacy of interventions and environmental factors on increasing fluid intake or reducing dehydration risk in older people living in long-term care facilities.

DESIGN

Systematic review of intervention and observational studies.

DATA SOURCES

Thirteen electronic databases were searched from inception until September 2013 in all languages. References of included papers and reviews were checked.

ELIGIBILITY CRITERIA

Intervention and observational studies investigating modifiable factors to increase fluid intake and/or reduce dehydration risk in older people (≥65 years) living in long-term care facilities who could drink orally.

REVIEW METHODS

Two reviewers independently screened, selected, abstracted data, and assessed risk of bias from included studies; narrative synthesis was performed.

RESULTS

A total of 4328 titles and abstracts were identified, 325 full-text articles were obtained and 23 were included in the review. Nineteen intervention and 4 observational studies from 7 countries investigated factors at the resident, institutional, or policy level. Overall, the studies were at high risk of bias due to selection and attrition bias and lack of valid outcome measures of fluid intake and dehydration assessment. Reported findings from 6 of the 9 intervention studies investigating the effect of multicomponent strategies on fluid intake or dehydration described a positive effect. Components included greater choice and availability of beverages, increased staff awareness, and increased staff assistance with drinking and toileting. Implementation of the US Resident Assessment Instrument reduced dehydration prevalence from 3% to 1%, P = .01. Two smaller studies reported positive effects: one on fluid intake in 9 men with Alzheimer disease using high-contrast red cups, the other involved supplementing 13 mildly dehydrated residents with oral hydration solution over 5 days to reduce dehydration. Modifications to the dining environment, advice to residents, presentation of beverages, and mode of delivery (straw vs beaker; prethickened drinks vs those thickened at the bedside) were inconclusive. Two large observational studies with good internal validity investigated effects of ownership; in Canada, for-profit ownership was associated with increased hospital admissions for dehydration; no difference was seen in dehydration prevalence between US for-profit and not-for-profit homes, although chain facilities were associated with lower odds of dehydration. This US study did not suggest any effect of staffing levels on dehydration prevalence.

CONCLUSIONS

A wide range of interventions and exposures were identified, but the efficacy of many strategies remains unproven due to the high risk of bias present in many studies. Reducing dehydration prevalence in long-term care facilities is likely to require multiple strategies involving policymakers, management, and care staff, but these require further investigation using more robust study methodologies. The review protocol was registered with the International Prospective Register of Systematic Reviews (http://www.crd.york.ac.uk/PROSPERO/display_record.asp?ID=CRD42012003100).