Nutrition & Dietetics最新文献

Aims: The aims of this study were to: (1) explore perspectives of university students' and academics' regarding disordered eating, eating disorders and body image in relation to pedagogy and curricula and (2) to evaluate a co-designed student seminar and an academic workshop on these topics.

Methods: A participatory action research approach was employed whereby an educational intervention was co-created by academics and students. An online seminar was presented to students and a 1-h workshop was presented to academic staff. Evaluation was conducted via a post-seminar anonymous survey for students and a pre- and post-anonymous workshop survey for academics with a mix of Likert-scale questions and open text boxes. Qualitative data were open coded, both deductively and inductively, and quantitative data were analysed descriptively.

Results: One hundred and seventeen students attended the voluntary education seminar. Six themes were identified from student qualitative data which included feeling safe, empowered, inspired, connected, emotional and reflective. Problematic aspects of pedagogy and curricula were identified by students and included: using personal data for teaching, demonising language to describe food/bodies and not always feeling safe or supported to discuss disordered eating. Twenty academics shared divergent perspectives-some reported feeling concerned and challenged by the content (exploring disordered eating with students), others noted the complexity of the area, and others reported low/moderate confidence or indifference in the space and felt this content outside of their scope as educators.

Conclusion: Curricula interventions that reduce triggering and shaming and increase space and support for strengthening students' relationships with food and their bodies are valued by nutrition and dietetics students. We encourage academics to consider pedagogical approaches and expand discourse in this space.

Aim: Optimising preconception health increases the likelihood of conception, positively influences short- and long-term pregnancy outcomes and reduces intergenerational chronic disease risk. Our aim was to synthesise study characteristics and maternal outcomes of digital or blended (combining face to face and digital modalities) interventions in the preconception period.

Methods: We searched six databases (PubMed, Cochrane, Embase, Web of Science, CINHAL and PsycINFO) from 1990 to November 2022 according to the PRISMA guidelines for randomised control trials, quasi-experimental trials, observation studies with historical control group. Studies were included if they targeted women of childbearing age, older than 18 years, who were not currently pregnant and were between pregnancies or/and actively trying to conceive. Interventions had to be delivered digitally or via digital health in combination with face-to-face delivery and aimed to improve modifiable behaviours, including dietary intake, physical activity, weight and supplementation. Studies that included women diagnosed with type 1 or 2 diabetes were excluded. Risk of bias was assessed using the Academy of Nutrition and Dietetics quality criteria checklist. Study characteristics, intervention characteristics and outcome data were extracted.

Results: Ten studies (total participants n=4,461) were included, consisting of nine randomised control trials and one pre-post cohort study. Seven studies received a low risk of bias and two received a neutral risk of bias. Four were digitally delivered and six were delivered using blended modalities. A wide range of digital delivery modalities were employed, with the most common being email and text messaging. Other digital delivery methods included web-based educational materials, social media, phone applications, online forums and online conversational agents. Studies with longer engagement that utilised blended delivery showed greater weight loss.

Conclusion: More effective interventions appear to combine both traditional and digital delivery methods. More research is needed to adequately test effective delivery modalities across a diverse range of digital delivery methods, as high heterogeneity was observed across the small number of included studies.

Aim: This qualitative study aimed to explore the experiences of participants who were enrolled in 6-month controlled weight loss interventions with 2-month follow-up to better understand the process of behaviour change and maintenance.

Methods: Fifteen participants who completed or dropped out from either a daily energy restriction or intermittent fasting group were recruited using maximum variation purposive sampling. In-depth, semi-structured interviews were conducted at the 2-month follow-up phase. All interviews were transcribed and analysed using thematic analysis, guided by behaviour change models including transtheoretical model, social cognitive theory and integrated model of change.

Results: Participants following both diets showed similar behaviour change patterns. Their first motivations were mostly external and relied on 'accountability' to adhere to the diet when initiating the dietary changes. Participants highlighted the importance of frequent reviews and monitoring in assisting their adherence. This feedback system promoted the development of self-efficacy and internalised motivation to encourage an 'ownership'. Participants who transitioned successfully from relying on accountability to take 'ownership' of the intervention were more capable of tackling challenges and tailoring their diet to form a new routine for long-term maintenance.

Conclusion: External motivations were key to initiate while internalised motivations were more important to sustain the behaviour change. Health professionals can assist this process through routine monitoring and feedback processes in clinical practice.

Aims: To co-create strategies and identify opportunities to integrate eating disorder content within dietetics curricula at one Australian university with stakeholders using a design thinking approach.

Methods: A pragmatic mixed-methods, participatory design approach was used. An online survey explored the learning needs of dietetic students and recent graduates regarding eating disorders. Following the survey, a one-day design thinking retreat was held with stakeholders who were identified from the research team's professional networks. Eating disorder dietitians, learning experts, dietetic students, graduates, and those with lived experience were asked to identify strategies to enhance students' confidence and competence to provide care for people living with eating disorders. Quantitative data were analysed using descriptive statistics and qualitative data were analysed using inductive coding and reflexive thematic analysis.

Results: Sixty-four students (n = 55, 86%) and recent graduates (n = 9, 14%) completed the online survey (26% response). Seventeen stakeholders attended the retreat. Four themes were identified: (1) changing perceptions of eating disorder care from specialist to 'core business'; (2) desiring and advocating for a national change to dietetics curricula; (3) importance of lived experience at the centre of curriculum design and delivery; and (4) collaborating to co-design and deliver eating disorder content at university.

Conclusion: Raising awareness, upskilling students and educators, enhanced collaboration between universities and stakeholders, and the inclusion of lived experience were key to preparing students to provide care to people seeking support for eating disorders. Further research is needed to assess the impact these strategies have on dietetic students' confidence and competence.

Aims: Immune checkpoint inhibitor therapy used for lung cancer has significantly changed response and survival rates, however, the impact on patients' nutritional status remains largely unexplored. This review aims to identify common adverse events that increase nutrition risk induced in non-small cell lung cancer patients treated with immune checkpoint inhibitor therapy and assess impact on nutritional status.

Methods: PubMed, Medline and CINAHL were systematically searched in September 2023 for randomised controlled trials comparing immune checkpoint inhibitor treatment of non-small cell lung cancer to a control group. Treatment-related adverse events that increased nutrition impact symptoms identified in the patient-generated subjective global assessment and clinical guidelines were extracted and qualitatively analysed. Risk of bias was assessed using Cochrane Risk of Bias tool 2.

Results: Eleven eligible randomised controlled trial studies were identified and analysed. The data demonstrated immune checkpoint inhibitor treatment was associated with a lower percentage of reported nutrition impact symptoms, for example, decreased appetite, nausea, vomiting, compared to chemotherapy treatment. Conversely, immune checkpoint inhibitor treated patients recorded a greater percentage of immune-related adverse events that alter metabolism or nutrient absorption.

Conclusion: Non-small cell lung cancer patients treated with immune checkpoint inhibitors still experience nutrition impact symptoms but less frequently than patients treated with chemotherapy. This combined with unique nutrition-related consequences from colitis and thyroid disorders induced by immune checkpoint inhibitor therapy indicates patients should be screened, assessed and interventions implemented to improve nutrition.

Aim: To evaluate an 'On-Demand' snack service in a rehabilitation setting for satisfaction, intake, waste and cost.

Methods: In September 2021, a trial of an 'On-Demand' snack service was conducted on two general rehabilitation wards in a purpose-built rehabilitation hospital. A retrospective comparison of pre-implementation, 1-month and 8-month post-implementation audit data was used to evaluate staff and patient satisfaction, nutritional intake, waste and cost (labour and food). Descriptive and inferential statistical analyses were performed for intake quantitative data and content analysis was conducted for qualitative data.

Results: A total of 26 responses from staff and 34 from patients were received. Staff reported higher overall satisfaction with the 'tea-trolley' service (50% vs. 32%; χ² 6.815 [2]; p < 0.05). Patient satisfaction ratings of the original 'tea-trolley' system were higher than the 'On-Demand' snacks system (96% vs. 59%; χ² 41.60 [2]; p < 0.0001). Median daily intake from snack food and drinks was maintained (938 kJ and 6 g protein vs. 925 kJ and 6 g protein) and waste (23.3% vs. 20.9%; p < 0.05) decreased with the 'On-Demand' service. Cost of ordered food was similar ($778.15 'tea-trolley' vs. $746.1 'On-Demand'), however cost of waste ($179.47 'tea-trolley' vs. $128.7 'On-Demand') and labour ($1650.46 'tea-trolley' vs. $926.44 'On-Demand') reduced by 28% and 44%, respectively, with the 'On-Demand' snack service.

Conclusion: Implementing an 'On-Demand' snack service in the general inpatient rehabilitation setting resulted in reductions in food waste, foodservice staff labour and waste costs, while intake was maintained. Patient and staff satisfaction decreased warranting further investigation into appropriate implementation methods.

Aims: Healthcare needs of the Australian population are changing, providing an opportunity for dietitians to embrace innovation and entrepreneurship to meet evolving demands. This study explored the expectations and experiences of participants in a 12-month mentoring circle designed to provide entrepreneurship learning and formal mentoring for the Provisional Accredited Practising Dietitians Program.

Methods: A qualitative study design was employed. New graduate dietitians (<2 years) participating in the Entrepreneurial Dietetics Mentoring Circle in 2019, 2020 or 2021 were invited to participate. Baseline demographic and employment data were collected via survey. Semi-structured interviews were conducted before mentoring circle session 1 (baseline) and after the final session (completion), exploring insights into participant expectations and experiences in entrepreneurship. Thematic analysis, using methods outlined by Braun and Clark, was conducted to identify themes and subthemes.

Results: Twenty-eight dietitians participated (85% of mentees). Participants were mostly female (89%), less than 12 months post-graduation (75%), registered as Provisional Accredited Practising Dietitians (82%) and employed at least part-time (55%). Forty five interviews were conducted (28 baseline, 18 completion). Themes developed were: (1) entrepreneurial career path as a deliberate choice; (2) the value of being prepared for entrepreneurial careers; and (3) the importance of networks to support entrepreneurship.

Conclusion: The mentoring circle at this single university was seen by participants as supporting their transition into entrepreneurial careers, while meeting their requirement to be formally mentored through their Provisional status. Future research could consider the applicability of the mentoring circle model across a wider graduate population to support innovative practice.

Aim: Private practice is one of the most rapidly growing, but under-researched employment sectors for graduate dietitians in Australia, limiting evidence-based workforce development. This scoping review examines existing international literature to gain an understanding of the current private practice workforce size, distribution, demography and workforce development considerations, including competencies, supply and demand, remuneration and professional development activities.

Methods: The databases MEDLINE, EMBASE, CINAHL, EMCARE, PsycInfo (Ovid) and grey literature were systematically searched in August 2023 using key search terms to identify studies for inclusion. Articles were included if they related to private practice dietetics and described an aspect of workforce. Original research, government and organisational reports, statements of practice and websites providing governmental or organisational statistics were included. A directed content analysis and qualitative constant comparison technique were used to deductively map intelligence sources against a workforce development framework. A gap analysis was also conducted to provide a focus for future workforce development research.

Results: A total of 72 peer-reviewed and grey literature sources were included, with 65% of the studies being Australian-based publications. Private practice dietetics research interest has increased in the last decade. Despite a breadth of published sources, this review found little published data on workforce size, distribution, demography, supply, demand, continued professional development and remuneration, indicating a significant gap in the evidence base. Existing literature focuses on workforce challenges and barriers, the work of private practice dietitians, with limited exploration of competency requirements for graduate private practitioners.

Conclusions: The literature on the private practice dietetics workforce is lacking worldwide, which constrains evidenced-based workforce development initiatives. Workforce development research across all workforce aspects is warranted to address current evidence gaps.

Aim: Patients with acute ischaemic stroke are more likely to develop refeeding syndrome due to increased need for nutritional support when suffering alterations of consciousness and impairment of swallowing. This study aimed to evaluate the incidence, risk factors and outcomes of refeeding syndrome in stroke patients.

Methods: This was a retrospective observational study, using the prospective stroke database from hospital, included all consecutive acute ischaemic stroke patients who received enteral nutrition for more than 72 h from 1 January 2020 and 31 December 2022. Refeeding syndrome was defined as occurrence of new-onset hypophosphataemia within 72 h after enteral feeding. Multiple logistic regression analysis was conducted to evaluate risk factors and relationships between refeeding syndrome and stroke outcomes.

Results: 338 patients were included in the study. 50 patients (14.8%) developed refeeding syndrome. Higher scores on National Institutes of Health Stroke Scale and Nutritional Risk Screening 2002, albumin <30 g/L and BMI <18.5 kg/m² were risk factors for refeeding syndrome. Moreover, refeeding syndrome was independently associated with a 3-month modified Rankin Scale score of >2 and 6-month mortality.

Conclusions: Refeeding syndrome was common in stroke patients and higher baseline National Institutes of Health Stroke Scale, higher Nutritional Risk Screening 2002, albumin <30 g/L and BMI <18.5 kg/m² were independent risk factors of refeeding syndrome. Occurrence of refeeding syndrome was significantly associated with higher 3-month modified Rankin Scale and 6-month mortality.

Aims: The Australian Dietary Guidelines are currently being revised and ultra-processed foods have been identified as a high priority action area. To better understand how well the current Dietary Guidelines align with level of processing classifications, the aim of this study was to assess the alignment between the Australian Dietary Guidelines and the NOVA classification system for classifying the healthiness of packaged foods.

Methods: Data were sourced from the Australian FoodSwitch dataset, which included 28 071 packaged food and beverage products available in major Australian supermarkets in 2022. Products were classified as (i) core or discretionary (Australian Dietary Guidelines) and (ii) non-ultra-processed or ultra-processed (NOVA). Agreement between the two systems (core vs. non-ultra-processed and discretionary vs. ultra-processed) was evaluated using the kappa statistic.

Results: There was 'moderate' agreement (κ = 0.41, 95% CI: 0.40-0.42) between the Australian Dietary Guidelines and the NOVA system, with 69.8% of products aligned across the two systems. Alignment was more common for discretionary foods (80.6% were ultra-processed) than core foods (59.9% aligned were not-ultra-processed). Food categories exhibiting the strongest levels of alignment included confectionary, foods for specific dietary use, and egg and egg products. Discordance was most common for convenience foods, sugars, honey and related products, and cereal and grain products.

Conclusions: Despite moderate alignment between the Australian Dietary Guidelines and NOVA, the discordance observed for almost one-third of products highlights the opportunity to develop recommendations for ultra-processed foods within the guidelines to advise Australians how these foods should be considered as part of a healthy diet.