Minimum Data Set for Nutritional Intervention Studies in Elderly People

Towards developing a Core Outcome Set for malnutrition intervention studies in older adults: a scoping review to identify frequently used research outcomes

Purpose

To conduct a scoping review to provide a systematic overview of outcomes used in nutritional intervention studies focused on the treatment of protein-energy malnutrition in older adults.

Methods

A systematic search of four electronic databases (Medline, EMBASE, CINAHL and Cochrane Central Register of Controlled Trials (CENTRAL) was performed to retrieve randomized controlled trials (RCTs), published until March 9, 2020, that evaluated the effect of nutritional interventions to treat protein-energy malnutrition in older adults and those at risk for malnutrition. Two authors screened titles, abstracts and full texts independently. One author extracted data that were cross-checked by another author.

Results

Sixty-three articles reporting 60 RCTs were identified. Most frequently used outcomes included body weight/body mass index (75.0% of RCTs), dietary intake (61.7%), functional limitations (48.3%), handgrip strength (46.7%), and body circumference (40.0%). The frequencies differed by setting (community, hospital and long-term care). For some outcomes there was a preferred assessment method (e.g., Barthel index for functional limitations), while for other outcomes (e.g., functional performance) a much greater variation was observed.

Conclusion

A large variation in outcomes, not only across but also within settings, was identified in nutritional intervention studies in malnourished older adults and those at risk. Furthermore, for many outcomes there was a large variation in the used assessment method. These results highlight the need for developing a Core Outcome Set for malnutrition intervention studies in older adults to facilitate future meta-analyses that may enhance our understanding on the effectiveness of treatment.

Nutritional Risk in Cancer Patients 65 and Older Undergoing Systemic Phase I Treatment

Malnutrition is common in cancer patients and recognized as an important component of adverse outcomes, including increased morbidity, mortality, and decreased quality of life (QOL). Quality of life is an overarching term for quality of various domains of life. It is a standard level that consists of the expectations of an individual for a good life. These expectations are guided by values, goals, and sociocultural context. It is a subjective, multidimensional concept defining a standard level for emotional, physical, material, and social well-being (Bottomley, 2012). Nutritional risk is not consistently assessed in the older adult cancer patient population. The purpose of this secondary analysis was to identify variables related to nutritional risk in the cancer patient 65 years and older receiving systemic treatments. The study described the relationship between nutritional risk and four domains of QOL (physical, social, emotional, and functional). A sample of 73 patients was accrued for this study from an NCI-funded RO1 aimed at integrating supportive care for cancer patients. The Mini Nutritional Assessment-Short Form instrument was used to assess for nutritional risk. Findings revealed the strongest correlation with nutritional risk was BMI status (r = .47, p < .0001). Multiple regression analysis demonstrated factors associated with nutritional risk included BMI, previous chemotherapy, and physical subscale of the Functional Assessment of Cancer Therapy-General QOL instrument. Descriptive data reinforced the importance of assessment and intervention to support nutritional status. Nutrition impacts all dimensions of QOL and is even more important in an aging population. Advanced practitioners can contribute greatly to advancing this area of practice.

Malnutrition screening tools: comparison against two validated nutrition assessment methods in older medical inpatients

OBJECTIVE

Although several validated nutritional screening tools have been developed to "triage" inpatients for malnutrition diagnosis and intervention, there continues to be debate in the literature as to which tool/tools clinicians should use in practice. This study compared the accuracy of seven validated screening tools in older medical inpatients against two validated nutritional assessment methods.

METHODS

This was a prospective cohort study of medical inpatients at least 65 y old. Malnutrition screening was conducted using seven tools recommended in evidence-based guidelines. Nutritional status was assessed by an accredited practicing dietitian using the Subjective Global Assessment (SGA) and the Mini-Nutritional Assessment (MNA). Energy intake was observed on a single day during first week of hospitalization.

RESULTS

In this sample of 134 participants (80 ± 8 y old, 50% women), there was fair agreement between the SGA and MNA (κ = 0.53), with MNA identifying more "at-risk" patients and the SGA better identifying existing malnutrition. Most tools were accurate in identifying patients with malnutrition as determined by the SGA, in particular the Malnutrition Screening Tool and the Nutritional Risk Screening 2002. The MNA Short Form was most accurate at identifying nutritional risk according to the MNA. No tool accurately predicted patients with inadequate energy intake in the hospital.

CONCLUSION

Because all tools generally performed well, clinicians should consider choosing a screening tool that best aligns with their chosen nutritional assessment and is easiest to implement in practice. This study confirmed the importance of rescreening and monitoring food intake to allow the early identification and prevention of nutritional decline in patients with a poor intake during hospitalization.

Beyond malnutrition screening: appropriate methods to guide nutrition care for aged care residents

BACKGROUND

Malnutrition is common in older adults and early and appropriate nutrition intervention can lead to positive quality of life and health outcomes.

OBJECTIVE

The purpose of our study was to determine the concurrent validity of several malnutrition screening tools and anthropometric parameters against validated nutrition assessment tools in the long-term-care setting.

STUDY DESIGN

This work was a cross-sectional, observational study.

PARTICIPANTS/SETTING

Older adults (aged >55 years) from two long-term-care facilities were screened.

MAIN OUTCOMES

Nutrition screening tools used included the Malnutrition Screening Tool (MST), Malnutrition Universal Screening Tool (MUST), Mini Nutritional Assessment-Short Form (MNA-SF), and the Simplified Nutritional Assessment Questionnaire. Nutritional status was assessed by Subjective Global Assessment (SGA), Mini Nutritional Assessment (MNA), body mass index (BMI), corrected arm muscle area, and calf circumference. Residents were rated as either well nourished or malnourished according to each nutrition assessment tool.

STATISTICAL ANALYSIS

A contingency table was used to determine the sensitivity and specificity of the nutrition screening tools and objective measures in detecting patients at risk of malnutrition compared with the SGA and MNA.

RESULTS

One hundred twenty-seven residents (31.5% men; mean age 82.7 ± 9 years, 57.5% high care) consented. According to SGA, 27.6% (n=31) of residents were malnourished and 13.4% were rated as malnourished by MNA. MST had the best sensitivity and specificity compared with the SGA (sensitivity 88.6%, specificity 93.5%, ?=0.806), followed by MNA-SF (85.7%, 62%, ?=0.377), MUST (68.6%, 96.7%, ?=0.703), and Simplified Nutritional Assessment Questionnaire (45.7%, 77.2%, ?=0.225). Compared with MNA, MNA-SF had the highest sensitivity of 100%, but specificity was 56.4% (?=0.257). MST compared with MNA had a sensitivity of 94.1%, specificity 80.9% (?=0.501). The anthropometric screens ranged from ?=0.193 to 0.468 when compared with SGA and MNA.

CONCLUSIONS

MST, MUST, MNA-SF, and the anthropometric screens corrected arm muscle area and calf circumference have acceptable concurrent validity compared with validated nutrition assessment tools and can be used to triage nutrition care in the long-term-care setting.

Malnutrition screening and early nutrition intervention in hospitalised patients in acute aged care: a randomised controlled trial

OBJECTIVES

High rates of malnutrition have been reported in the older hospitalized patient population. This is recognised to impact on patient outcomes and health costs. This study aimed to assess the impact of nutrition screening and intervention on these parameters.

DESIGN

Randomised controlled prospective study.

SETTING

The study was performed in the acute geriatric medicine wards of the Prince of Wales Hospital, Sydney Australia.

PARTICIPANTS

All patients admitted to these wards under a geriatrician with an expected length of stay of at least 72 hours were considered for the study.

INTERVENTION

Patients were screened on admission for malnutrition using the Mini Nutritional Assessment (MNA) tool and randomly assigned to control or intervention groups. Intervention patients were immediately commenced on a malnutrition care plan (MCP). Control patients were only commenced on a MCP if referred by clinical staff.

MEASUREMENTS

Length of stay (LOS), weight change and frequency of readmission to hospital were compared between the groups.

RESULTS

143 patients were screened. 119 were identified as malnourished (MN) or at risk of malnutrition (AR). Overall LOS was not different between the two groups (control v. intervention: 13.4 ± 1.3 days v. 12.5 ± 1.2 days, p=0.64). However there was a significant decrease in LOS in the MN (control v. intervention: 19.5 ± 3 days v. 10.6 ± 1.6 days, p=0.013) and a trend to reduced readmissions. There was no difference in weight change over admission between the groups. Without screening, clinical staff identified only a small proportion of malnourished patients (35% of MN and 20% of AR).

CONCLUSIONS

Malnutrition in the older hospital population is common. Malnutrition screening on hospital admission facilitated targeted nutrition intervention, however length of stay and re-presentations were only reduced in older malnourished patients with an MNA score less than 17.

Nutritional problems in the elderly

Despite the high prevalence of malnutrition among elderly patients, nutritional problems are still not recognized as a priority forthem by health professionals. The need for nutritional assessment and intervention is particularly crucial in this age group, in whom the incidence of chronic illness is high and a myriad of socio-economic factors enhance the likelihood of malnutrition. Malnutrition could be considered as an element of frailty among the old, leading to increased risk of many geriatric syndromes such as falls, delirium, functional decline, depressed immunity, etcetera. However, detection of nutritional risk and nutritional intervention are effective in frail patients. Nutritional assessment should be part of routine clinical practice in elderly hospitalized patients. A comprehensive screening tool for assessment of nutritional status that is clinically relevant and cost effective to perform is therefore needed. If malnutrition is suggested by such screening tests, then a supplemental conventional nutritional assessment should be performed before treatment is planned.

[Significance and diagnosis of malnutrition in the elderly]

In certain high-risk groups like geriatric hospital patients and nursing home inhabitants malnutrition has a high prevalence and is highly relevant for morbidity and mortality in these populations. The diagnosis of malnutrition in the elderly can be achieved by simple parameters like loss of weight, BMI and oral intake. The available screening and assessment instruments like Mini Nutritional Assessment (MNA) and Nutritional Risk Screening (NRS 2002) aim at the standardization of the diagnosis and early recognition of malnutrition. While the MNA seems to be more appropriate for the community-dwelling elderly, the NRS 2002 offers advantages for the hospital setting. The dissimilarity of the two instruments makes the comparison of study populations difficult. Both the results of the MNA and those of the NRS 2002 are unsuitable as follow-up parameters and inappropriate for the evaluation of nutritional intervention. There is still a strong need for studies on the diagnosis and therapy of malnutrition in the elderly, especially in the nursing home setting. For scientific purposes a standardization of the instruments used for the diagnosis of malnutrition and for the evaluation of the study results is essential. The Minimum Data Set may be a first step in the right direction.

Which are the most efficient items of mini nutritional assessment in multimorbid patients?

OBJECTIVE

The aim of the study was to identify the most significant MNA-items to accelerate the determination of nutritional risk of elderly patients in routine clinical practice in a geriatric hospital. Since MNA requires 10-15 min it is hardly applicable to clinical routine.

DESIGN

The study was a cross-sectional study.

SETTING

The study centre was an acute geriatric hospital.

PARTICIPANTS

In total 808 multimorbid elderly patients were recruited.

METHODS

We applied the MNA in 808 (528 f/280 m) geriatric multimorbid patients (78.5+/-8.7f / 74.6+/-9 m yrs) without cognitive impairment 48 h after hospital admission. Admission diagnoses covered orthopaedical (40%), internal (34%) and cerebrovascular (24%) diseases. According to analysis of reliability the consistency of the MNA scale for multimorbid patients has been verified. In preparation for scale reduction a factor analysis was applied. A reduced scale with selected cutoffs was configured and compared with MNA.

RESULTS

According to MNA, 15% of patients were well-nourished, 65% at risk of malnutrition and 20% were malnourished. The reliability analyses showed a Cronbach's Alpha of 0.60 that represented a satisfactory result. By means of factor analysis the MNA-items were reduced from 18 to 7 items (weight loss, mobility, BMI, number of full meals, fluid consumption, mode of feeding, health status). with new cutoffs (12.5-15 well-nourished, 9-12 at risk of malnutrition, <9 malnourished). According to the modified MNA (m-MNA) 21.7% of the patients were well-nourished, 54.5% at risk of malnutrition and 21.7% were malnourished. The score of the MNA and m-MNA correlated with r=0.910. Furthermore, there was a strong correlation between MNA and m- MNA group classification of 83%.

CONCLUSION

The m-MNA enables a rapid (3 min) and efficient screening of malnutrition in multimorbid geriatric patients. The m-MNA is easy to apply and may also be suitable in multimorbid patients with cognitive dysfunction. Due to the variety of items the m-MNA seems to be superior to other screening tools.

Évaluation quasi-expérimentale d’une intervention d’éducation nutritionnelle auprès des aides à domicile de personnes âgées

BACKGROUND

The French National Program on Nutrition and Health has defined two specific objectives targeting older persons: (i) to improve their status in calcium and vitamin D and (ii) to prevent undernutrition. Home help provides support in activities of daily living, including meals, to dependent persons. The objective of our study was to evaluate the impact of a nutritional education intervention on knowledge and practices among home support assistants for the elderly.

METHODS

Three facilities providing home support in Gironde (France) selected 132 home support assistants to follow an education program and 134 controls. Nutrition training was conducted in the intervention group by a dietician during two half-day sessions in May-June 2004. A non randomized controlled trial design was used for evaluation. Nutritional knowledge (20 questions) and practice (5 questions) of home support assistants were assessed by questionnaire before (April 2004) and after (September 2004) the training period in each group. Satisfaction of the intervention group was also assessed.

RESULTS

The intervention group included 101 participants and the control group 106 persons who answered both questionnaires before and after the education program. The intervention group was significantly younger (p < 0.05), less educated (p = 0.01) and had less often participated to previous nutrition training (p < 0.001) than the control group. There was no significant difference between the two groups before intervention for their mean scores of knowledge or practices. The intervention group significantly improved its knowledge score (mean gain 2.5 points, p < 0.001) after the training period, whereas the score remained unchanged in the control group (mean gain 0.5 points, p = 0.06). The impact of the nutritional education was very significant (p < 0.0001) after adjustment for the characteristics which differed between the two groups. The practice scores did not differ significantly after intervention in multivariate analyses. Satisfaction of trained home support assistants was very high.

CONCLUSION

An education program of home support assistants for elderly persons can improve their nutritional knowledge, but this study cannot conclude that the intervention was efficient to improve the nutritional status of older persons.