ABSTRACT
OBJECTIVE: To determine the impact of diet quality interventions on neurocognitive decline in older adults. DESIGN: Four databases were searched (Medline, EMBASE, CENTRAL and PsycINFO) for randomised controlled trials involving diet quality interventions and cognitive outcomes in older adults. Study quality was assessed using the Cochrane Risk of Bias tool. Outcomes selected for meta-analysis were memory and executive function, for which standardised mean differences (SMD) were calculated. Subgroup and sensitivity analyses were undertaken to explore causes of heterogeneity. Additional outcomes of global cognitive function, incident dementia, attention, language/verbal fluency, and processing speed were narratively synthesised. RESULTS: Twelve studies were included, investigating the Mediterranean, Dietary Approaches to Stop Hypertension and Nordic diets. Risk of bias varied across studies. Dietary intervention had a significant effect on memory (SMD: 0.98; 95% CI: 0.39, 1.57; p = 0.001) and executive function (SMD: 2.02; 95% CI: 1.04, 3.01; p < 0.00001), although neither outcome was significant in sensitivity analyses. Heterogeneity was high (I2 = 99%) prior to sensitivity analyses and low (I2 = 0%) after. Results for narratively synthesised cognitive measures were inconsistent with no clear direction of effect. CONCLUSION: The current body of evidence would suggest the effect of dietary intervention on neurocognitive decline in older adults is unclear given the considerable heterogeneity and bias present across studies. These findings should be interpreted with consideration to the limited number of studies that could be included and the large variation in study designs. Further randomised controlled trials with harmonised cognitive outcomes and assessments are needed to clarify direction of effect.
Subject(s)
Cognition , Executive Function , Aged , Diet , HumansABSTRACT
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.
Subject(s)
Dietary Supplements/statistics & numerical data , Healthcare Disparities/statistics & numerical data , Practice Patterns, Physicians'/statistics & numerical data , Prescriptions/statistics & numerical data , Primary Health Care/statistics & numerical data , Aged , Aged, 80 and over , Female , Humans , Ireland , Male , Malnutrition/therapy , Patient Acceptance of Health Care/statistics & numerical data , Residential Facilities/statistics & numerical data , Retrospective StudiesABSTRACT
BACKGROUND: Language and communication have an impact on how a clinical condition is treated and experienced, from both the health care professional (HCP) and patient perspective. Malnutrition is prevalent among community-dwelling older adults, yet perceptions of patient understanding of the term malnutrition to date remain underexplored. OBJECTIVE: This qualitative study explored the use and perceptions of the term malnutrition among HCPs and older adults at risk of malnutrition. DESIGN: Semi-structured interviews and focus groups were conducted with HCPs and older adults with a prescription for oral nutritional supplements (ONS) in the community, to explore perspectives. PARTICIPANTS AND SETTING: HCPs with experience of working with older adults were recruited in primary care centers, general practitioner practices, community health organizations, and community pharmacies in County Dublin, Ireland, between 2018 and 2019. Older adults, aged ≥60 years, with a current or previous prescription for ONS were recruited from daycare centers. One-to-one interviews were conducted with general practitioners (n = 16) and patients (n = 13), and focus groups were conducted with other HCPs, including dietitians (n = 22), nurses (n = 22), pharmacists (n = 9), physiotherapists (n = 12), occupational therapists (n = 6), and speech and language therapists (n = 4). DATA ANALYSIS: Data from interviews and focus groups were transcribed verbatim and analyzed using thematic analysis. RESULTS: There was mutual agreement between HCPs and patients on the main theme, "malnutrition is a term to be avoided." There were three subthemes with varying input from the different HCP groups and patients: "Malnutrition is a term a patient doesn't want to hear"-malnutrition has negative connotations that imply neglect and stigma; "malnutrition is a clinical term which patients don't understand"-with perceptions that it is better to substitute the term with simpler motivating messages; and "lack of confidence identifying malnutrition"-expressed by non-dietetics HCPs who believed they had insufficient expertise on malnutrition to communicate effectively with patients. CONCLUSIONS: HCPs and patients perceived negative connotations with the term malnutrition, and HCPs used alternatives in practice. Additional consultation with HCPs and patients is recommended to explore appropriate language for conveying health risks associated with malnutrition. Future research should also address how current communication challenges can be addressed as part of strategic management programs or interventions to prevent and treat malnutrition.
Subject(s)
Health Personnel/psychology , Independent Living/psychology , Malnutrition/psychology , Terminology as Topic , Adult , Aged , Communication , Female , Focus Groups , Humans , Ireland , Male , Middle Aged , Primary Health Care , Professional-Patient Relations , Qualitative ResearchABSTRACT
BACKGROUND & AIM: Protein-energy malnutrition is under-recognised in the community despite being common in older adults due to physiological and social changes which are often compounded by chronic disease. This qualitative study aimed to explore the opinions of healthcare professionals (HCPs) working in the primary care and community settings about the management of malnutrition and the prescription of oral nutritional supplements (ONS), often included in the treatment of malnutrition. METHODS: Twelve healthcare professional (HCP) focus groups with 75 participants were conducted: community dietitians (n = 17), registered dietitians working in industry (n = 5), community and residential care nurses (n = 22), physiotherapists (n = 12), pharmacists (n = 9), occupational therapists (n = 6) and speech and language therapists (n = 4). Focus group discussions were audio-recorded and transcribed verbatim. The data were coded and analysed using thematic analysis and key themes with illustrative quotes extracted are presented. RESULTS: Similar views on malnutrition management existed across professions. 'Gaps in Primary Care Management' was the first key theme wherein HCPs identified limitations in malnutrition management in the community. Barriers included limited or no dietetic services available in primary care and poor communication between general practitioners and wider primary care team members which resulted in inappropriate or delayed treatment. The second key theme, 'Challenges with ONS use in the Community', encapsulated several issues HCPs experienced with ONS usage including inappropriate prescribing and lack of monitoring of treatment goals. Conflicts of interest regarding dietitians working in industry assessing and treating older adults in residential care settings was highlighted by participants. CONCLUSIONS: This study highlights that more emphasis is needed to identify patients when they are at risk of malnutrition to avoid advanced or severe malnutrition presentations currently seen. Community dietitians for older people are required to address many of the issues raised including the need for awareness, education and training, resources, and malnutrition care pathway structures.