Inverse relationship between body mass index and mortality in older nursing home residents: a meta-analysis of 19,538 elderly subjects.

Body mass index (BMI) and mortality in old adults from the general population have been related in a U-shaped or J-shaped curve. However, limited information is available for elderly nursing home populations, particularly about specific cause of death. A systematic PubMed/EMBASE/CINAHL/SCOPUS search until 31 May 2014 without language restrictions was conducted. As no published study reported mortality in standard BMI groups (<18.5, 18.5-24.9, 25-29.9, ≥30 kg/m(2)), the most adjusted hazard ratios (HRs) according to a pre-defined list of covariates were obtained from authors and pooled by random-effect model across each BMI category. Out of 342 hits, 20 studies including 19,538 older nursing home residents with 5,223 deaths during a median of 2 years of follow-up were meta-analysed. Compared with normal weight, all-cause mortality HRs were 1.41 (95% CI = 1.26-1.58) for underweight, 0.85 (95% CI = 0.73-0.99) for overweight and 0.74 (95% CI = 0.57-0.96) for obesity. Underweight was a risk factor for higher mortality caused by infections (HR = 1.65 [95% CI = 1.13-2.40]). RR results corroborated primary HR results, with additionally lower infection-related mortality in overweight and obese than in normal-weight individuals. Like in the general population, underweight is a risk factor for mortality in old nursing home residents. However, uniquely, not only overweight but also obesity is protective, which has relevant nutritional goal implications in this population/setting.

Strategies to implement community guidelines on nutrition and their long-term clinical effects in nursing home residents.

OBJECTIVES: Studies on implementation techniques that focus on nutrition in the setting of elderly care are scarce. The aims of this study were to compare two implementation strategies i.e., external facilitation (EF) and educational outreach visits (EOVs), in order to introduce nutritional guidelines (e.g. screening, food quality and mealtime ambience), into a nursing home (NH) setting and to evaluate the clinical outcomes. DESIGN: A controlled study with baseline and follow-up measurements. SETTING: Four NHs. PARTICIPANTS: A total of 101 NH residents. INTERVENTION: The EF was a one-year, multifaceted intervention that included support, guidance, practice audits, and feedback that were provided to two NHs. The EOVs performed at the other NHs consisted of one session of three hours of lectures about the guidelines. Both interventions targeted a team of the unit manager, the head nurse, and 5-10 of the care staff. MEASUREMENTS: The outcomes were nutritional status (Mini Nutritional Assessment-Short Form, MNA-SF), body mass index (BMI), functional ability (Barthel Index, BI), cognitive function (Short Portable Mental Status Questionnaire, SPMSQ, performed in a subgroup of communicative NH residents), health-related quality of life (EQ-5D), and the levels of certain biochemical markers like for example vitamin D, albumin and insulin-like growth factor 1. RESULTS: After a median of 18 months, nutritional parameters (MNA-SF and BMI) remained unchanged in both groups. While there were no differences in most outcomes between the two groups, the cognitive ability of those in the EOV group deteriorated more than in individuals in the EF group (p=0.008). Multiple linear regression analyses indicated that the intervention group assignment (EF) was independently from other potentially related factors associated with less cognitive decline. CONCLUSION: An extended model of implementation of nutritional guidelines, including guidance and feedback to NH staff, did not affect nutritional status but may be associated with a delayed cognitive decline in communicative NH residents.

Nutritional status of patients who have fallen in an acute care setting.

BACKGROUND: Falls may result in injury, loss of independence and higher healthcare costs. The aim of this study was to examine the nutritional status of patients who had fallen in an acute care setting. METHODS: Forty-nine patients who had experienced a fall while admitted at an Australian private hospital participated in the study (age: 71.2 (SD 14.1) years; 21 male: 28 female). Nutritional status was assessed using subjective global assessment. Protein and energy intake was determined by dietary history and analysed using Australian computerised food composition data. RESULTS: According to subjective global assessment, 27 patients were well nourished and 22 malnourished (21 moderately, one severely malnourished). Well nourished fallers had significantly higher BMI (mean difference 3.7 kg/m(2), CI: 1.2-6.2), dietary protein (mean difference 19.8 g, CI: 2.0-37.5) and energy intake (mean difference 1751 kJ, CI: 332-3170) compared to malnourished fallers. There was no difference in severity of falls based on nutritional status, weight or BMI. CONCLUSIONS: There was a high prevalence of malnutrition and poor intake in this sample of patients who had fallen in hospital. Nutrition assessment and intervention for patients who have fallen in the acute care setting should be considered.