Agreement between different versions of MNA

Neutrophil-to-lymphocyte ratio and lymphocyte count as an alternative to body mass index for screening malnutrition in older adults living in the community

PURPOSE

Accurate height and weight measurement can be challenging in older adults and complicates nutritional status assessment. Other parameters like the neutrophil-to-lymphocyte ratio (NLR) and the lymphocyte count (LC) could be an option to these measurements. We aimed to test these variables as subrogates of body mass index (BMI) or calf-circumference (CC) for malnutrition screening in community-dwelling older adults.

METHODS

This is a secondary analysis from the Salud, Bienestar y Envejecimiento (SABE) survey from Ecuador (2009). Includes data on demographics, health-related factors, physical assessments, and complete blood count, allowing to calculate NLR and LC to be used as part of the Mini Nutritional Assessment (MNA), instead of the BMI. Consequently, 4 models were included: standard MNA, MNA-CC, MNA-NLR and MNA-LC. Finally, age, sex, and comorbidities were considered as confounding variables.

RESULTS

In our analysis of 1,663 subjects, 50.81% were women. Positive correlations with standard MNA were found for MNA-NLR (Estimate = 0.654, p < 0.001) MNA-CC (Estimate = 0.875, p value < 0.001) and MNA-LC (Estimate = 0.679, p < 0.001). Bland-Altman plots showed the smallest bias in MNA-CC. Linear association models revealed varying associations between MNA variants and different parameters, being MNA-NLR strongly associated with all of them (e.g. Estimate = 0.014, p = 0.001 for albumin), except BMI.

CONCLUSION

The newly proposed model classified a greater number of subjects at risk of malnutrition and fewer with normal nutrition compared to the standard MNA. Additionally, it demonstrated a strong correlation and concordance with the standard MNA. This suggests that hematological parameters may offer an accurate alternative and important insights into malnutrition.

Nutrition Assessment and Interventions for the Prevention and Treatment of Malnutrition in Older Adults: An Evidence Analysis Center Scoping Review

Older adults living in the community or long-term residence such as a nursing home are at increased risk for malnutrition due to factors such as depression and isolation. The purpose of this scoping review is to identify the best available research that evaluates the validity and reliability of nutrition assessment tools, and the effectiveness of nutrition interventions to prevent or treat malnutrition among older adults. A literature search was conducted in Medline, Embase, CINAHL, and Cochrane Central databases to identify clinical trials, published in the English language, evaluating assessment and intervention methods aimed to treat or prevent malnutrition among older adults living in the community or their long-term residence such as nursing homes. Articles were screened by 2 reviewers, then data were extracted and narratively synthesized. The literature search retrieved 20,937 articles and 197 articles were included in narrative synthesis. A total of 73 assessment articles were identified, 36 of which were validity and reliability trials. A total of 122 intervention articles were identified, the majority of which were randomized controlled trials. A few of the most commonly evaluated interventions were oral nutrition supplements, medical nutrition therapy, fortification and enrichment, and nutrition education. Several systematic reviews were identified, however, that did not meet the criteria of this review. There is a need to conduct systematic reviews for nutrition assessment and intervention trials to guide development of evidence-based nutrition practice recommendations for older adults living in the community or their long-term residence.

Nutritional Assessment in Older Adults : MNA® 25 years of a Screening Tool and a Reference Standard for Care and Research; What Next?

A tool to assess nutritional status in older persons was really needed. It took 5 years to design the MNA® (Mini Nutrition Assessment) tool, complete the first validations studies both in Europe and in the U.S. and to publish it. After the full MNA®, the MNA® short form and the self-MNA® have been validated. As well as Chinese and other national MNA® forms. Now more than 2000 clinical research have used the MNA® all over the world from community care to hospital. At least 22 Expert groups included the MNA® in new clinical practice guidelines, national or international registries. The MNA® is presently included in almost all geriatric and nutrition textbook and part of the teaching program for medicine and other health care professional worldwide. The urgent need is to target the frail older adults more likely to have weight loss and poor appetite and to prevent frailty and weight loss in the robust. We present in this paper the review of 25 years of clinical research and practice using the MNA® worldwide.

Validity of Nutritional Screening Tools for Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis

OBJECTIVES

The aim of this systematic review was to summarize the validity of nutritional screening tools to detect the risk of malnutrition in community-dwelling older adults.

DESIGN

A systematic review and meta-analysis. The protocol for this systematic review was registered in the PROSPERO database (CRD42017072703).

SETTING AND PARTICIPANTS

A literature search was performed in PubMed, EMBASE, CINAHL, and Cochrane using the combined terms "malnutrition," "aged," "community-dwelling," and "screening." The time frame of the literature reviewed was from January 1, 2001, to May 18, 2018. Older community-dwellers were defined as follows: individuals with a mean/median age of >65 years who were community-dwellers or attended hospital outpatient clinics and day hospitals. All nutritional screening tools that were validated in community-dwelling older adults against a reference standard to detect the risk of malnutrition, or with malnutrition, were included.

MEASURES

Meta-analyses were performed on the diagnostic accuracy of identified nutritional screening tools validated against the Mini Nutritional Assessment-Long Form (MNA-LF). The symmetric hierarchical summary receiver operating characteristic models were used to estimate test performance.

RESULTS

Of 7713 articles, 35 articles were included in the systematic review, and 9 articles were included in the meta-analysis. Seventeen nutritional screening tools and 10 reference standards were identified. The meta-analyses showed average sensitivities and specificities of 0.95 (95% confidence interval [CI] 0.75-0.99) and 0.95 (95% CI 0.85-0.99) for the Mini Nutritional Assessment-Short Form (MNA-SF; cutoff point ≤11), 0.85 (95% CI 0.80-0.89) and 0.87 (95% CI 0.86-0.89) for the MNA-SF-V1 (MNA-SF using body mass index, cutoff point ≤11), 0.85 (95% CI 0.77-0.89) and 0.84 (95% CI 0.79-0.87) for the MNA-SF-V2 (MNA-SF using calf circumference instead of body mass, cutoff point ≤11), respectively, using MNA-LF as the reference standard.

CONCLUSIONS AND IMPLICATIONS

The MNA-SF, MNA-SF-V1, and MNA-SF-V2 showed good sensitivity and specificity to detect community-dwelling older adults at risk of malnutrition validated against the MNA-LF. Clinicians should consider the use of the cutoff point ≤11 on the MNA-SF, MNA-SF-V1, and MNA-SF-V2 to identify community-dwelling older adults at risk of malnutrition.

Malnutrition risk and hospitalization in elderly assisted in Primary Care

Abstract The aim of this study was to investigate the association of malnutrition risk and single items of the Mini Nutritional Assessment (MNA®) with hospitalization in the last 12 months in the elderly assisted in primary care. A cross-sectional study was conducted with the evaluation of 1229 elderly persons assisted in Family Health Strategies in seven cities of South Brazil. Malnutrition risk was evaluated using the MNA®, and hospitalization was determined by one question of the Probability of Repeated Admission (PRA) instrument. Most of the elderly were women (61.7%), with a mean age of 71.7 ± 7.7 years. The malnutrition risk rate was 23.3% and hospitalization was 32.9%. The frequency of malnutrition and risk of malnutrition was two times greater among the elderly who were hospitalized (36.8 versus 18.6% - P < 0.001). There was a significant association between hospitalization and 11 (64.7%) of the 17 items on the MNA® evaluated (P < 0.05). Of these, seven items were independently associated with hospitalization by multivariate analysis. We observed an association of malnutrition risk and most of the single MNA® items as well, with hospitalization in the elderly assisted in primary care.

Evaluation of the Iranian Mini Nutritional Assessment Short-Form in Community-dwelling Elderly

BACKGROUND

This study was aimed to assess agreement and diagnostic accuracy of the Iranian version of Mini Nutritional Assessment short-form (MNA-SF) against the original MNA, as a gold standard in community-dwelling elderly.

METHODS

The full MNA and 9-item MNA-SF comprising questions regarding clinical status, dietary assessment and self-perception of health status and nutri-tion together with mid-arm and calf circumference measurements without in-cluding the body mass index (BMI) were completed for 205 volunteers aged 65 or older recruited from all over Markazi Province (Iran). Correlation, diagnostic accuracy and agreement between the MNA-SF and full MNA were calculated.

RESULTS

The MNA and the MNA-SF classified 45.4% and 64.4% of the sub-jects as malnourished or at risk of malnutrition, respectively. Substantial agree-ment between the MNA-SF and full MNA was observed (Kappa=0.633). The MNA-SF correlated strongly with the full MNA (r=0.868, P<0.001). The MNA-SF showed high sensitivity (96.77%) and negative predictive values (95.89%), relatively high specificity (62.5%) and positive predictive values (68.18%) and fair accuracy (Area under curve =0.796).

CONCLUSION

Iranian MNA-SF seems to be an applicable screening tool for quick detection of malnutrition or at risk of malnutrition in community-dwelling elderly especially when BMI is unavailable.

Nutritional status of an elderly population in Southwest China: a cross-sectional study based on comprehensive geriatric assessment

OBJECTIVE

Few data is available on the nutritional status of old Chinese. The present study aimed to describe the nutritional status and clinical correlates for malnutrition risk in the older people.

DESIGN

Cross-sectional study.

SETTING

Hospital- and community-based older people were recruited in the region of Chongqing, China.

PARTICIPANTS

558 individuals aged 60 years old or over between April 2011 and October 2012.

MEASUREMENTS

Comprehensive geriatric assessment was performed and nutritional status was assessed by the Mini Nutritional Assessment Short Form (MNA-SF). Nutrition-associated factors were analyzed, including health status (chronic diseases, depression, cognition, function impaired), social factors (education status, marital status, the type of work before 60 years old) and life style factors (smoking, drinking, diet).

RESULTS

The mean age was 73.1±8.0 years and 43.9% were men. Prevalence of malnutrition and risk for malnutrition were 3.2% and 19.3 %, respectively. Several factors increased poor nutrition independently including self-rated health, comorbidity, chronic obstructive pulmonary disease, gastrointestinal disease and cognitive impairment. Fish decreased the risk of poor nutrition.

CONCLUSIONS

The prevalence was relatively low in older people of Chongqing, Southwest China. Poor nutrition was found to be increased due to the common health problems. Thus the patients with these problems should pay more attention on nutritional status. The older people should often have fish because of their nutritional benefit.