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Featured researches published by Karen Walton.


Appetite | 2008

A volunteer feeding assistance program can improve dietary intakes of elderly patients – A Pilot Study

Karen Walton; Peter A. Williams; Julie Bracks; Qingsheng Zhang; Leanne Pond; Rebecca Smoothy; Linda C Tapsell; Marijka Batterham; Linda Vari

Malnutrition is prevalent in elderly hospitalized patients and has been associated with longer lengths of stay (LOS), higher rates of complications and increased hospital costs. Feeding assistance has traditionally been the role of nurses, however with an ageing population and an ever-increasing workload there may not be sufficient time to ensure the nutritional care of all patients. A program in which trained volunteers assist, socialize and feed nutritionally vulnerable patients at lunch on weekdays has been initiated in a major suburban hospital in Sydney. The pilot study reported here aimed to evaluate the lunchtime assistance program in terms of dietary intakes by comparing data from weekdays (with volunteers) and that from weekends (no volunteers). Nine patients (mean age+/-S.D.: 89+/-4.6 years) participated in the study. Observations and weighed plate waste were recorded for each patient at lunch on two weekdays and the following two weekend days. When volunteers were present, the average protein intake increased by 10.1g at lunch (p<0.05) and 10.7 g over the whole day (p<0.05). There was also a trend to increased energy intake. Observations indicated that the volunteers, when compared to the nurses, socialized more with patients, encouraged them to eat more often and spent more time feeding them. Trialing volunteer assistance in a larger study would be useful.


Appetite | 2013

Observations of mealtimes in hospital aged care rehabilitation wards

Karen Walton; Peter A. Williams; Linda C Tapsell; Matthew Hoyle; Zhi Wei Shen; Lauren Gladman; Martin Nurka

Malnutrition is common in long-stay elderly hospitalized patients and their dietary intakes are often poor, despite the provision of adequate quantities of food to meet patient needs. The aim of this study was to identify environmental factors that were associated with achieving adequate food consumption in a hospital context. This study observed the daily routines of 30 elderly patients over 2days in rehabilitation wards in three Australian hospitals. All activities associated with mealtimes were recorded, from the commencement of breakfast to the conclusion of supper at the end of the day. Four key themes emerged: the eating location; assistance given at meals; negative and positive interruptions. The time taken to eat meals averaged 22min, ranging from 3 to 55min. Food intakes appeared to be better when meals were consumed communally in a dining room. There were many occasions when patients needed more assistance to eat than was available. The most common factors negatively affecting meal consumption were medication rounds, inappropriate placement of trays, packaging being hard to open, and patient showering. The presence of visitors, dietitians and nutrition assistants appeared to improve dietary intakes. Trials of protected mealtimes in Australian hospitals are certainly important and timely.


Appetite | 2012

Additional feeding assistance improves the energy and protein intakes of hospitalised elderly patients. A health services evaluation

Fiona Manning; Kerri Harris; Rhys Duncan; Karen Walton; Julie Bracks; Lyndal Larby; Linda Vari; Katja Jukkola; Janet Bell; Maria Chan; Marijka Batterham

Malnutrition is a serious issue that is prevalent in elderly hospitalised patients. Traditionally the role of feeding was designated to the nurse; however competing tasks mean that additional support for feeding assistance is needed. A program that utilises volunteers during weekday lunchtimes to assist, feed and socialise with patients at a Sydney hospital began during 2005. Twenty-three patients (mean age: 83.2±8.9years) participated in this study. Observations and weighed plate waste were recorded for each patient for all meals on two weekdays (when volunteers present) and two weekend days (when volunteers not present). Grip strength, Mini-Nutritional Assessments and interviews were conducted with patients, and surveys with volunteers and staff. Lunchtime energy and protein intakes increased significantly (396 kJ and 4.3g respectively) when volunteers were present. Volunteers spent an average of 12.3 min with each patient at lunchtime, compared to 4.7 min for nurses. Nurses indicated time barriers to feeding patients but were positive about the value of the program. Volunteers were commonly observed feeding, setting up meals and providing encouragement to patients. Additional feeding assistance is one effective strategy to increase the energy and protein intakes and combat malnutrition in elderly inpatients.


Australian Journal of Primary Health | 2015

Trends in uptake of the 75+ health assessment in Australia: a decade of evaluation

Aliza Haslinda Hamirudin; Abhijeet Ghosh; Karen E Charlton; Andrew D Bonney; Karen Walton

In Australia, older adults aged 75+ years are encouraged to avail themselves of the comprehensive 75+ health assessment (75+ HA) to identify medical conditions and highlight potential risk factors for poor health. However, uptake of this item has been reported to be low. This study aimed to identify the uptake of the 75+ HA within regional areas of New South Wales and compare this against state and national trends over an 11-year period. Data on uptake of the 75+ HA for item numbers 700 and 702, from 1999 until 2010, were obtained from the Medicare Australia portal and Department of Health and Ageing databases. Trends over time were collated and compared at the regional, state and national level. The study found that an increasing number of the 75+ HAs were performed from 1999 to 2009. Overall, the uptake of the 75+ HA is generally low across Australia, at -20% of the eligible population, but varied across states and even regions within states. The study also revealed that despite low uptake encouraging trends were evident over a decade of 75+ HA implementation. It is argued that strategies in improving the uptake should be targeted for early identification of health risk and overall improved quality of health in older adults.


Obesity Research & Clinical Practice | 2014

Food tolerance and diet quality following adjustable gastric banding, sleeve gastrectomy and Roux-en-Y gastric bypass

Rebecca Anne Freeman; Shannon Elise Overs; Nazy Zarshenas; Karen Walton; John O. Jorgensen

OBJECTIVE The effects of food tolerance (if any) on diet quality several years post-surgery remain unclear. Our study aimed to assess food tolerance and diet quality after three bariatric procedures; adjustable gastric banding (AGB), sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGBP), 2â??4 years post-surgery. METHODS This prospective, cross-sectional study assessed weight loss, food tolerance and diet quality in 130 subjects (14 obese pre-surgical controls, 13 AGB, 62 SG and 41 RYGBP). Inclusion criteria selected patients who underwent bariatric surgery between 1 January 2007 and 31 December 2008, at a single bariatric clinic. Non-parametric tests (Kruksalâ??Wallis and Mannâ??Whitney) along with Spearmans correlation coefficient analysis were used. RESULTS Superior food tolerance was reported by the control (24.5), SG (24.0) and RYGBP (22.0) groups, compared with the AGB group (15.5; P < 0.001). The control and AGB groups consumed significantly more high-calorie extra foods (9.2 and 7.7 daily serves respectively) compared with the SG (3.4 serves) and RYGBP (4.0 serves) groups. There were several significant correlations between food tolerance and dietary intake including breads and cereals and meat and meat alternatives. CONCLUSION The control and AGB groups consumed significantly more high-calorie extra foods, a result that was paralleled by poor weight loss and food tolerance outcomes for the AGB group. A significant positive relationship between food tolerance and diet quality was established. Poor food tolerance and thus compromised diet quality need to be considered as post-surgical complications of the AGB procedure.


Nutrients | 2015

Role of Dietary Protein and Thiamine Intakes on Cognitive Function in Healthy Older People: A Systematic Review

Freda Koh; Karen E Charlton; Karen Walton; Anne-Therese McMahon

The effectiveness of nutritional interventions to prevent and maintain cognitive functioning in older adults has been gaining interest due to global population ageing. A systematic literature review was conducted to obtain and appraise relevant studies on the effects of dietary protein or thiamine on cognitive function in healthy older adults. Studies that reported on the use of nutritional supplementations and/or populations with significant cognitive impairment were excluded. Seventeen eligible studies were included. Evidence supporting an association between higher protein and/or thiamine intakes and better cognitive function is weak. There was no evidence to support the role of specific protein food sources, such as types of meat, on cognitive function. Some cross-sectional and case-control studies reported better cognition in those with higher dietary thiamine intakes, but the data remains inconclusive. Adequate protein and thiamine intake is more likely associated with achieving a good overall nutritional status which affects cognitive function rather than single nutrients. A lack of experimental studies in this area prevents the translation of these dietary messages for optimal cognitive functioning and delaying the decline in cognition with advancing age.


Nutrition & Dietetics | 2014

Introduction to nutrition informatics in Australia

Kirsty Maunder; Peter A. Williams; Karen Walton; Maree Ferguson; Eleanor Beck; Yasmine Probst

Aim The aim of this study was to provide an introduction to nutrition informatics, including a brief history and a rationale of its importance for Australian dietetics. Methods The study method used was a narrative review informed by a literature review and expert consultation with the Academy of Nutrition and Dietetics. Results Nutrition informatics has demonstrated potential to improve efficiencies, reduce costs, support research and ultimately enhance patient care. Governments and organisations have identified this as an emerging priority area. The Dietitians Association of Australia has launched initiatives to advocate and provide strategic advice on dietetic involvement in biomedical informatics and specifically nutrition informatics. Conclusions If nutrition standards and processes are not integrated into information systems, dietitians may inherit technologies that do not support dietetic work practices, and opportunities to enhance nutrition services may be missed. It is recommended that dietitians be aware of the opportunities and potential benefits of nutrition informatics, become familiar and involved in technology initiatives, and take the lead in guiding the development and implementation of technologies that may impact patient nutritional care.


BMC Family Practice | 2014

Feasibility of implementing routine nutritional screening for older adults in Australian general practices: a mixed-methods study

Aliza Haslinda Hamirudin; Karen E Charlton; Karen Walton; Andrew D Bonney; Jan Potter; Marianna Milosavljevic; Adam J Hodgkins; George Albert; Abhijeet Ghosh; Andrew Dalley

BackgroundNutrition screening in older adults is not routinely performed in Australian primary care settings. Low awareness of the extent of malnutrition in this patient group, lack of training and time constraints are major barriers that practice staff face. This study aimed to demonstrate the feasibility of including a validated nutrition screening tool and accompanying nutrition resource kit for use with older patients attending general practice. Secondary aims were to assess nutrition-related knowledge of staff and to identify the extent of malnutrition in this patient group.MethodsNine general practitioners, two general practice registrars and 11 practice nurses from three participating general practices in a rural, regional and metropolitan area within a local health district of New South Wales, Australia were recruited by convenience sampling.Individual in-depth interviews, open-ended questionnaires and an 11-item knowledge questionnaire were completed three months following in-practice group workshops on the Mini Nutritional Assessment Short Form (MNA-SF). Staff were encouraged to complete the MNA-SF within the Medicare-funded 75+ Health Assessment within this time period. Staff interviews were digitally recorded, transcribed verbatim and analysed thematically using qualitative analysis software QSR NVivo 10.ResultsFour key themes were determined regarding the feasibility of performing MNA –SF: ease of use; incorporation into existing practice; benefit to patients’ health; and patients’ perception of MNA-SF. Two key themes related to the nutrition resource kit: applicability and improvement. These findings were supported by open ended questionnaire responses. Knowledge scores of staff significantly improved from baseline (52% to 66%; P < 0.05). Of the 143 patients that had been screened, 4.2% (n = 6) were classified as malnourished, 26.6% (n = 38) `at risk’ of malnutrition and 69.2% (n = 99) as well-nourished.ConclusionIt is feasible to include the MNA-SF and a nutrition resource kit within routine general practice, but further refinement of patients’ electronic clinical records in general practice software would streamline this process.


Journal of Nutrition Health & Aging | 2015

Evaluation of a pilot volunteer feeding assistance program: Influences on the dietary intakes of elderly hospitalised patients and lessons learnt

Chi-Sheng Huang; Kim Dutkowski; Alexandra Fuller; Karen Walton

ObjectivesMalnutrition is a serious concern in hospitals and is known to be associated with increased complications for patients, increased hospital costs and length of stay. Trained volunteers that assist ‘at risk’ and malnourished patients at lunch meals have been shown to effectively increase nutritional intake in a suburban hospital in Sydney. The pilot study reported here aimed to evaluate and share learnings from a similar, newly implemented program, comparing energy and macronutrient intakes on days with no volunteer assistance, to days with volunteers.DesignDietary intakes were determined by visual estimation of meal trays before and after meals, for two days without volunteers, and two days with volunteer assistance at lunch. Macronutrient and energy intakes were compared and data such as weight, height, diet type and medical history were obtained from medical records. Questionnaires were completed by nurses and volunteers in regards to their views and experiences with the program.SettingHospital based.ResultsEight patients (83±4.5 years) participated in the study. When volunteers were present at lunch, the average macronutrient and energy intakes increased, though not statistically significantly. The mean increases were 316kJ (p=0.175) for energy, 3.1g (p=0.468) for protein, 1.4g (p=0.418) for fat and 11.6g (p=0.084) for carbohydrates. Non-significant increases in macronutrients were also noted for the average daily intakes.ConclusionAlthough not statistically significant, energy and macronutrient intakes increased when volunteers were present. The implementation of a volunteer feeding assistance program is one strategy to assist dietary intakes but requires a ready team of volunteers, training, acceptance and significant time to develop.


Journal of nutrition in gerontology and geriatrics | 2016

Factors Influencing Food Choice for Independently Living Older People-A Systematic Literature Review.

Alison Host; Anne-Therese McMahon; Karen Walton; Karen E Charlton

ABSTRACT Unyielding, disproportionate growth in the 65 years and older age group has precipitated serious concern about the propensity of health and aged-care services to cope in the very near future. Preservation of health and independence for as long as possible into later life will be necessary to attenuate demand for such services. Maintenance of nutritional status is acknowledged as fundamental for achievement of this aim. Determinants of food choice within this age group need to be identified and better understood to facilitate the development of pertinent strategies for encouraging nutritional intakes supportive of optimal health. A systematic review of the literature consistent with PRISMA guidelines was performed to identify articles investigating influences on food choice among older people. Articles were limited to those published between 1996 and 2014 and to studies conducted within countries where the dominant cultural, political and economic situations were comparable to those in Australia. Twenty-four articles were identified and subjected to qualitative analysis. Several themes were revealed and grouped into three broad domains: (i) changes associated with ageing; (ii) psychosocial aspects; and (iii) personal resources. Food choice among older people is determined by a complex interaction between multiple factors. Findings suggest the need for further investigations involving larger, more demographically diverse samples of participants, with the inclusion of a direct observational component in the study design.

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Alison F Bell

University of Wollongong

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Anne McMahon

University of Wollongong

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Fiona Manning

University of Wollongong

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Jan Potter

University of Wollongong

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