Development and validation of the Diet Quality Tool for use in cardiovascular disease prevention settings

Development and Impact of a Community-Delivered, Multisectoral Lifestyle Management Service for People Living With Type 2 Diabetes (Logan Healthy Living): Protocol for a Pragmatic, Single-Arm Intervention Study

BACKGROUND

Type 2 diabetes is the fastest-growing chronic condition in Australia, with higher prevalence in disadvantaged groups. Logan Healthy Living by UQ Health Care is a proof-of-concept, interprofessional allied health clinic focused on supporting people with and at risk of type 2 diabetes in Logan, a region in South East Queensland, Australia, with high levels of health inequity. Logan Healthy Living is supported by the Queensland Government through Health and Wellbeing Queensland and a broader multisectoral alliance including primary health care; tertiary hospital and health services; and government, community, and university sectors.

OBJECTIVE

This paper describes the establishment of Logan Healthy Living and outlines the evaluation protocol for the service's type 2 diabetes lifestyle management program.

METHODS

The context and setting of Logan Healthy Living are presented, and the process for establishing the multisectoral partnerships, development and governance of the service, and the facility are described. The lifestyle management program is an 8-week, group-based program that includes 1 hour of education and 1 hour of supervised, individually tailored exercise each week. The theoretical underpinnings and the program are described in detail. The Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework will guide evaluation of the program and inform key questions regarding the number and characteristics of the clients (reach); diabetes-related distress, health behaviors (physical activity and diet), quality of life, self-management self-efficacy, loneliness, community involvement, anthropometric measures, hemoglobin A1c levels, physical function, and health care use (effectiveness); referral pathways (adoption); fidelity, appropriateness, acceptability, and costs (implementation); and long-term effectiveness (maintenance). Data will be drawn from a purposefully embedded minimum dataset and data registry, with the process for designing and embedding data collection into practice (via surveys, in-person measures, and client management software) described in detail.

RESULTS

Ethics approval has been obtained for the data registry. Logan Healthy Living is a 4-year proof of concept that concludes on December 31, 2024, with findings expected to be reported starting in 2025.

CONCLUSIONS

While multisectoral responses are needed for complex community health challenges, the processes for achieving these are rarely documented, and the description of the development of Logan Healthy Living has the potential to inform future partnerships. The findings of the evaluation will provide important new knowledge on the impact of a community-delivered type 2 diabetes program on individuals, the community, and the health system in an area of high health inequity.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/69477.

Streamlining COM-B model: Insights from the Healthy Eating Context

The global rise in diet-related diseases highlights the urgent need for effective behavioural interventions. While theoretical frameworks like the Capability, Opportunity, Motivation-Behaviour (COM-B) model are valuable for understanding and influencing healthy eating behaviours, their practical application is often hindered by complexity and extensive measurement demands. This study addresses these challenges by testing a simplified version of the COM-B model, focusing on a select set of items representing seven core constructs. We conducted a cross-sectional survey with 347 Australian young adults to validate this streamlined model, making it more accessible for researchers and practitioners. Our findings underscore the importance of automatic motivation, the physical environment, and physical capability as critical factors in promoting healthy eating behaviours. By simplifying the COM-B model, this research contributes to developing more practical and effective strategies for healthier eating, addressing a critical public health issue.

Behavioural and psychological telehealth support for people with cardiac conditions: randomized trial of the 'back on track' self-management programme

AIMS

Behaviour modification and mood management are essential to recovery after a cardiac event. Recent times have seen a major shift to remote delivery of cardiac services. This study assessed behavioural and psychological outcomes of the Back on Track online self-management programme, comparing the programme undertaken alone (self-directed) vs. with telephone support (supported). Relevance for people with depression was also assessed.

METHODS AND RESULTS

Participants with cardiac conditions (n = 122) were randomly assigned to self-directed or supported groups and given access to the online programme for 2 months. The programme addressed depression, anxiety, physical activity, and healthy eating. Supported group participants also received two telephone sessions facilitated by a trained counsellor to further enhance their self-management skills and engagement with the online modules. The Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, and Active Australia Survey and Diet Quality Tool were administered at baseline, 2, and 6 months. χ2 tests were used to compare self-directed and supported groups. Cochrane's Q tests assessed changes over time in depression, anxiety, and physical activity (PA) and healthy diet guideline achievement. Participants in both groups showed reduced depression rates (self-directed, P < 0.05) and increased PA after programme completion (both groups, P < 0.05). Amongst those classified as depressed at baseline, significantly fewer were classified as depressed over time (P < 0.001) and significantly more were achieving the PA guidelines (P < 0.01) compared to those who were not depressed at baseline.

CONCLUSIONS

The Back on Track telehealth programme was effective in assisting with behavioural and emotional recovery after a cardiac event. The programme may be particularly beneficial for those who are depressed early in their recovery period.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry: ACTRN12620000102976.

Understanding the Relationship between Illness Perceptions and Health Behaviour among Women with Polycystic Ovary Syndrome

This paper aims to delineate the cognitive, emotional, and behavioural responses of women with polycystic ovary syndrome (PCOS) to their illness by applying the Common-Sense Model of Self-Regulation (CSM) to their health behaviour. An online cross-sectional design was used to examine the relationship between participants' illness perceptions (illness identity, consequence, timeline, control, and cause) and emotional representations of their PCOS, and their health behaviours (diet, physical activity, and risky contraceptive behaviour). The participants were 252 women between the ages of 18 and 45 years, living in Australia, and self-reporting a diagnosis of PCOS, recruited through social media. Participants completed an online questionnaire regarding illness perceptions as well as their diet, physical activity, and risky contraceptive behaviour. Illness identity was positively associated with the number of maladaptive dietary practices (B = 0.71, 95% CI: 0.003, 0.138; p = 0.04), and perception of longer illness duration was associated with reduced physical activity (OR = 0.898, 95% CI: 0.807, 0.999; p = 0.49) and risky contraceptive behaviour (OR = 0.856, 95% CI: 0.736, 0.997; p = 0.045). The limitations of the study include all data being self-reported (including PCOS diagnosis), and the potential for analyses of physical activity and risky contraceptive use being underpowered due to reduced sample sizes. The sample was also highly educated and restricted to those who use social media. These findings suggest that illness perceptions may play a role in influencing health behaviour in women with PCOS. A better understanding of the illness perceptions of women with PCOS is needed to increase health-promoting behaviour and improve health outcomes for women with PCOS.

Evaluating the impact of loneliness and social isolation on health literacy and health-related factors in young adults

Objectives

In current study, we aim to extend previous research by investigating the unique impact of loneliness on health literacy and health-related factors of young adults, after controlling for social isolation, depressive symptomology, and social anxiety, as well as evaluate how social isolation and loneliness differ in their impact on health literacy, and health-related factors among young adults, after accounting for abovementioned concomitant variables.

Methods

Using a cross-sectional study design, 521 young adults completed an online survey in 2020, where they self-reported their loneliness, social isolation, health-related factors, and health literacy data.

Results

Increased loneliness was associated with decrease in several health literacy domains (e.g., poorer social support for health, lower appraisal of health information, among others) and increase in some health-related factors (e.g., higher perceived stress, higher negative affect), among young adults, even after controlling for social anxiety, depressive symptomology, and social isolation. Contrastingly, increase in social isolation was associated with changes in some health-related factors - more somatic health complaints, higher alcohol use, poorer cognitive and physical functioning, and lower scores for only one health literacy domain (i.e., social support for health) among young adults, after adjusting for the influence of social anxiety, depressive symptomology, and loneliness.

Conclusion

Even after accounting for the influence of several co-occurring social and mental health symptoms, higher loneliness was associated poorer health literacy and health-related factors in young adults. We also found loneliness and social isolation may differ in the mechanisms through which they impact health literacy and health-related factors in young adults.

Intuitive Eating Intervention and Diet Quality in Adults: A Systematic Literature Review

INTRODUCTION

Intuitive eating interventions aim to improve individual health and promote sustainable changes to one's relationship with food. However, there is no evidence-based consensus on the impact of intuitive eating interventions on diet quality. This systematic review aimed to investigate intuitive eating interventions and their impact on diet quality.

METHOD

PubMed, Embase, CINAHL, PsycInfo, and Cochrane databases were systematically searched to October 2021 for studies reporting interventions that encompassed the principles of intuitive eating and measured diet quality. Other health outcomes were used for secondary analysis. Findings were synthesized narratively.

RESULTS

Seventeen papers reporting 14 intervention studies (n = 3,960) were included in the review. All studies found a positive or neutral effect on diet quality following an intuitive eating intervention. A favorable change in eating behavior following these interventions was also observed.

DISCUSSION

Intuitive eating promotes an attunement to the body, which aids in improving diet quality because of increased awareness of physiological cues. The reduction of emotional and binge eating may also increase diet quality.

IMPLICATIONS FOR RESEARCH AND PRACTICE

Findings from the current review suggest that intuitive eating interventions are most effective face-to-face, in a group setting, and sustained for at least 3 months.

Impact of loneliness on health-related factors in Australia during the COVID-19 pandemic: A retrospective study

COVID-19 pandemic and its associated social and physical distancing restrictions may have had a severe impact on health. In the present study, we investigate the changes in physical, social and mental health, as well as the health literacy of Australians subsequent to the onset of COVID-19 pandemic, and examine the influence of loneliness on these health-related factors. Using a retrospective cross-sectional study design, 607 Australian adults completed a self-report online survey which assessed their health-related factors before and after onset of the COVID-19 pandemic (data collected between June 2020 to November 2020). Australians reported statistically significant increase in a number of (poorer) health-related factors (e.g., weight gain, sleeping difficulties, poor somatic health, higher loneliness, more issues navigating the healthcare system) post onset of COVID-19 pandemic. Further, after adjusting for covariates, higher loneliness during pandemic predicted poorer health-related outcomes (e.g., more somatic health complaints, poorer quality of diet, poorer social support for health). The COVID-19 pandemic and its associated social and physical distancing restrictions may have contributed towards poorer health-related factors among Australian adults. Further, increased loneliness during the pandemic may have further worsened physical health and health literacy outcomes among Australians.

Exploration of diet, physical activity, health knowledge and the cardiometabolic profile of young adults with intellectual disability

BACKGROUND

Young adults with intellectual disability (ID) are experiencing early mortality, and it is suggested that they are living with undiagnosed cardiovascular and metabolic risk factors (hereafter referred to as cardiometabolic).

METHODS

We investigated the association between modifiable risk factors and cardiometabolic health profile in adults with ID aged 18-45 years through clinical evaluation of traditional cardiometabolic parameters, and assessment of physical activity levels, diet and associated health knowledge.

RESULTS

We found that young adults with ID have an increased obesity (mean body mass index; ID group: 32.9 ± 8.6 vs. control group: 26.2 ± 5.5, P = 0.001), are engaging in less physical activity than the age-matched general population (total activity minutes per week; ID group: 172.2 ± 148.9 vs. control group: 416.4 ± 277.1, P < 0.001), and overall have unhealthier diets. Additionally, knowledge about nutrition and physical activity appears to be an important predictor of cardiometabolic risk in this population. If young people with ID are to improve their cardiometabolic health to reduce morbidity and early mortality, we need to further explore how to consistently apply health messaging to get lasting behavioural change in this population.

Engaging primary care providers in a mobile health strategy to support lifestyle change and blood pressure management

Objective

The delivery of lifestyle advice concerning diet and physical activity has been found to be suboptimal in primary care settings, including for patients who require this for clinical management. This pilot study aimed to evaluate the acceptability and feasibility of integrating a mobile health intervention into primary care to support patients with improving lifestyle behaviours for high blood pressure.

Methods

Thirty-one patients aged 40–70 years were recruited by seven general practitioners to trial a 6-month mobile health intervention that included videos, web-based education and text message reminders. Semi-structured interviews with general practitioners and patients explored intervention feasibility and acceptability. Web analytics were used to measure intervention use, and pre- and post-questionnaires measured patient ratings of content and behaviour changes.

Results

General practitioners and patients perceived the intervention to be an acceptable tool for supporting high blood pressure management. However, general practitioners reported recruitment challenges and patient engagement was limited for the web and video components. Questionnaires revealed no significant changes in behaviours, although the program was generally regarded by patients as motivating and some reported acquiring new knowledge and awareness. Patient suggestions for improvement included greater individualisation of content and opportunity for interaction with their general practitioner.

Conclusions

There is scope to improve lifestyle interventions for the management of high blood pressure in the busy primary care environment using supplementary mobile health strategies. Further intervention refinement and formative evaluation is required to identify strategies that can be integrated into routine care and achieve high patient engagement.

Getting "Back on Track" After a Cardiac Event: Protocol for a Randomized Controlled Trial of a Web-Based Self-management Program

Background

After a cardiac event, a large majority of patients with cardiac conditions do not achieve recommended behavior change targets for secondary prevention. Mental health issues can also impact the ability to engage in health behavior change. There is a need for innovative, flexible, and theory-driven eHealth programs, which include evidence-based strategies to assist patients with cardiac conditions with their recovery, especially in behavioral and emotional self-management.

Objective

The aim of this study is to determine the short- and longer-term behavioral and emotional well-being outcomes of the Back on Track web-based self-management program. In addition, this study will test whether there is enhanced benefit of providing one-on-one telephone support from a trained lifestyle counselor, over and above benefit obtained through completing the web-based program alone.

Methods

People who have experienced a cardiac event in the previous 12 months and have access to the internet will be eligible for this study (N=120). Participants will be randomly assigned to one of the two study conditions: either “self-directed” completion of the Back on Track program (without assistance) or “supported” completion of the Back on Track program (additional 2 telephone sessions with a lifestyle counselor). All participants will have access to the web-based Back on Track program for 2 months. Telephone sessions with the supported arm participants will occur at approximately 2 and 6 weeks post enrollment. Measures will be assessed at baseline, and then 2 and 6 months later. Outcome measures assessed at all 3 timepoints include dietary intake, physical activity and sitting time, smoking status, anxiety and depression, stage of change, and self-efficacy in relation to behavioral and emotional self-management, quality of life, and self-rated health and well-being. A demographic questionnaire will be included at baseline only and program acceptability at 2 months only.

Results

Recruitment began in May 2020 and concluded in August 2021. Data collection for the 6-month follow-up will be completed by February 2022, and data analysis and publication of results will be completed by June 2022. A total of 122 participants were enrolled in this study.

Conclusions

The Back on Track trial will enable us to quantify the behavioral and emotional improvements obtained and maintained for patients with cardiac conditions and, in particular, to compare two modes of delivery: (1) fully self-directed delivery and (2) supported by a lifestyle counselor. We anticipate that the web-based Back on Track program will assist patients in their recovery and self-management after an acute event, and represents an effective, flexible, and easily accessible adjunct to center-based rehabilitation programs.

Trial Registration

Australian New Zealand Clinical Trials Registry ACTRN12620000102976; http://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=378920&isReview=true

International Registered Report Identifier (IRRID)

DERR1-10.2196/34534

Easy Diet Screener: A quick and easy tool for determining dietary patterns associated with lipid profile and body adiposity

BACKGROUND

There is a lack of simple tools that could allow members of the general population to estimate their own dietary patterns and to associate them with unfavourable health outcomes. The present study aimed to develop and validate a simple self-administered tool, called the Easy Diet Screener (EDS), that would identify healthy and unhealthy dietary patterns and evaluate their association with unfavourable blood and anthropometric parameters (i.e. values outside the recommended values).

METHODS

In total, 259 adult people (31-50 years of age) participated in this observational study. They filled out an online version of the EDS questionnaire; those who scored highly were assigned to the healthy dietary pattern (HDP) group, whereas those with a low score were assigned to the western dietary pattern (WDP) group. The dietary records, anthropometric and biochemical parameters were evaluated in a subset of 200 participants who obtained similar score in the repeated EDS (paper version).

RESULTS

People assigned to HDP on the basis of EDS had significantly better diet quality than those assigned to WDP, with values of the Healthy Eating Index being 76.9 ± 9.2 and 58.7 ± 10.5, respectively. People classed as WDP had a higher risk of too high serum low-density lipoproteins [odds ratio (OR) = 2.65], triglycerides (OR = 3.67), body mass index (OR = 2.87) and percentage of fat tissue (OR = 3.98) than did people in the HDP.

CONCLUSIONS

EDS is an easy tool for quickly identifying healthy and western dietary patterns that are associated with lipid profile and body adiposity.

Capability, opportunity, and motivation: an across contexts empirical examination of the COM-B model

BACKGROUND

There is limited evidence for successful weight gain prevention interventions targeting young adults. Developing effective interventions necessitates a theoretical model that can identify barriers and enablers for healthy eating and physical activity among young adults to support weight management. This study empirically examines the utility of the COM-B model as a framework for intervention planning across two behavioural contexts: eating and physical activity.

METHODS

A cross-sectional survey research design was employed to empirically test the COM-B model in the contexts of young adult's eating and physical activity behaviours. Informed by the Theoretical Domains Framework, pre-validated measures appropriate for capturing the latency of the COM (Capability, Opportunity, and Motivation) constructs were sourced. Both surveys (eating and physical activity) were administered online to two independent samples of young adults aged 18-35 years. Models were specified and tested using structural equation modelling.

RESULTS

A total of 582 (mean age = 22.8 years; 80.3% female) and 455 (mean age = 24.9 years; 80.8% female) participants were included in the physical activity and eating analyses, respectively. The COM-B model explained 31% of variance in physical activity behaviour and 23% of variance in eating behaviour. In the physical activity model (N = 582), capability and opportunity were found to be associated with behaviour through the mediating effect of motivation. In the eating model (N = 455), capability was found to be associated with behaviour through the mediating effect of motivation. Capability was also found to mediate the association between opportunity and motivation. Consistencies and variations were observed across both models in terms of COM indicators.

CONCLUSIONS

Findings support the COM-B model's explanatory potential in the context of young adult's physical activity and eating behaviours. Barriers and enablers underlying young adult's physical activity and eating behaviours were identified that represent potential targets for future intervention design. Further research is needed to validate present study findings across different populations and settings.

Development and Validation of the Diet-Related Beliefs of Exercisers Scale

Many exercise-based weight-loss interventions result in considerably less weight loss than predicted. One possible explanation could be that people have certain beliefs about the interplay of exercise and food that also influence their eating behavior, such as the belief that food is a reward for exercise. The current research outlines a systematic multiphase process to develop a psychometrically sound scale to assess these beliefs. In Study 1, regular exercisers (N = 520) completed an exploratory questionnaire on their beliefs related to diet and exercise. In Study 2 (N = 380), the factor structure of the newly developed scale was corroborated by confirmatory factor analysis. In addition, a test-retest (N = 166) was used to confirm reliability and stability. In sum, the Diet-Related Beliefs of Exercisers Scale with its four subscales ("Refrain from Eating," "Food as Reward," "Healthy Eating," and "Nutritional Replenishment") represents a valid and reliable measure of exercisers' diet-related beliefs.

Assessing Overall Diet Quality: Development and Evaluation of the Performance of a Short Self-Administrated Questionnaire SCASA

Several tools assessing diet quality have been developed over the last decades, but their use in public health and clinical practice is limited because they necessitate detailed quantitative assessment of food intake. Our goal was to develop and validate a score (Score d’Alimentation Saine, SCASA) based on a short self-administrated online questionnaire to assess overall diet quality. SCASA targets the adult population in French-speaking Switzerland, but it was designed in a way enabling its adaptation for other regions. The choice of the items involved experts and lay volunteers. Construct validation and inter-method reliability were assessed by screening meal plans and by comparing the self-rated scores with food-record derived scores (kappa and Bland–Altman). SCASA (17 components) discriminated adequately balanced from imbalanced meal plans (93–95% and 44–46% of maximal score). Agreement between self-assessed and food record-based scores ranged between >90% (3 items), 80–89% (3 items), 70–79% (4 items), and <70% (5 items). The Bland–Altman plot showed a mean difference of −1.60 (95% CI −2.36 to −0.84), indicating a slight overestimation of the self-assessed diet quality compared to the food record. SCASA offers a reliable way to assess overall diet quality without requiring burdensome data collection or nutrient calculations.

Diet Quality Indices Used in Australian and New Zealand Adults: A Systematic Review and Critical Appraisal

Distilling the complexity of overall diet into a simple measure or summative score by data reduction methods has become a common practice in nutritional epidemiology. Recent reviews on diet quality indices (DQI) have highlighted the importance of sound construction criteria and validation. The aim of this current review was to identify and critically appraise all DQI used within Australian and New Zealand adult populations. Twenty-five existing DQI were identified by electronic searching in Medline and hand searching of reference lists. DQI were constructed based on the respective national dietary guidelines and condition-specific recommendations. For preferable features of DQI, six captured the dimensions of adequacy, moderation and balance; five had a nested structure; 12 consisted of foods, food groups and nutrients; 11 used metric scoring systems and most of those with metric scales used normative cutoff points. Food frequency questionnaires, either alone or with other methods, were the most common dietary assessment method used in 20 DQI. For evaluation of DQI, construct validity and relative validity are reported. Based on our critical appraisal, Dietary Guideline Index (DGI), Dietary Guideline Index-2013 (DGI-2013), Total Diet Score (TDS), Healthy Eating Index for Australian Adults-2013 (HEIFA-2013), and Aussie-Diet Quality Index (Aussie-DQI) were the preferred DQI used in Australian adults according to dimension, indicator selection, scoring criteria and evaluation. Further work is needed to enhance the construction of all Australian and New Zealand DQI, especially in terms of dimension and structure, for alignment with recommended construction criteria.

Cross-sectional associations between multiple lifestyle behaviours and excellent well-being in Australian adults

Research into associations between lifestyle behaviours and health has largely focused on morbidity, mortality and disease prevention. Greater focus is needed to examine relationships between lifestyle behaviours and positive health outcomes such as well-being. This study aims to examine the associations between multiple lifestyle behaviours and excellent well-being. Participants (n = 6788) were adults in the member database of the 10,000 Steps Australia project who were asked to participate in an online survey in November-December 2016. Well-being (WHO-5) Smoking, dietary behaviour, alcohol consumption, physical activity, sitting time, sleep duration, and sleep quality were assessed by self-report. Logistic regression analyses were used to examine relationships between excellent well-being (top quintile) and the individual lifestyle behaviours and also a lifestyle behaviour index (the number of lower-risk behaviours performed). Lower-risk dietary behaviour (OR = 1.29, 95% CI: 1.10-1.51), physical activity (OR = 1.90, 95% CI: 1.48-2.42), sitting time (OR = 1.46, 95% CI: 1.26-1.69), sleep duration (OR = 1.52, 95% CI: 1.32-1.75) and higher sleep quality (OR = 2.98, 95% CI: 2.55-3.48) were positively associated with excellent well-being, after adjusting for socio-demographics, chronic disease, depression, anxiety and all other lifestyle behaviours. Engaging in a higher number of lower risk lifestyle behaviours was positively associated with excellent well-being. These results highlight the need for multiple lifestyle behaviour interventions to improve and maintain higher well-being.

Validity and Reproducibility of a Habitual Dietary Fibre Intake Short Food Frequency Questionnaire

Low dietary fibre intake has been associated with poorer health outcomes, therefore having the ability to be able to quickly assess an individual's dietary fibre intake would prove useful in clinical practice and for research purposes. Current dietary assessment methods such as food records and food frequency questionnaires are time-consuming and burdensome, and there are presently no published short dietary fibre intake questionnaires that can quantify an individual's total habitual dietary fibre intake and classify individuals as low, moderate or high habitual dietary fibre consumers. Therefore, we aimed to develop and validate a habitual dietary fibre intake short food frequency questionnaire (DFI-FFQ) which can quickly and accurately classify individuals based on their habitual dietary fibre intake. In this study the DFI-FFQ was validated against the Monash University comprehensive nutrition assessment questionnaire (CNAQ). Fifty-two healthy, normal weight male (n = 17) and female (n = 35) participants, aged between 21 and 61 years, completed the DFI-FFQ twice and the CNAQ once. All eligible participants completed the study, however the data from 46% of the participants were excluded from analysis secondary to misreporting. The DFI-FFQ cannot accurately quantify total habitual dietary fibre intakes, however, it is a quick, valid and reproducible tool in classifying individuals based on their habitual dietary fibre intakes.

Balanced: a randomised trial examining the efficacy of two self-monitoring methods for an app-based multi-behaviour intervention to improve physical activity, sitting and sleep in adults

BACKGROUND

Many adults are insufficiently physically active, have prolonged sedentary behaviour and report poor sleep. These behaviours can be improved by interventions that include education, goal setting, self-monitoring, and feedback strategies. Few interventions have explicitly targeted these behaviours simultaneously or examined the relative efficacy of different self-monitoring methods.

METHODS/DESIGN

This study aims to compare the efficacy of two self-monitoring methods in an app-based multi-behaviour intervention to improve objectively measured physical activity, sedentary, and sleep behaviours, in a 9 week 2-arm randomised trial. Participants will be adults (n = 64) who report being physically inactive, sitting >8 h/day and frequent insufficient sleep (≥14 days out of last 30). The "Balanced" intervention is delivered via a smartphone 'app', and includes education materials (guidelines, strategies to promote change in behaviour), goal setting, self-monitoring and feedback support. Participants will be randomly allocated to either a device-entered or user-entered self-monitoring method. The device-entered group will be provided with a activity tracker to self-monitor behaviours. The user-entered group will recall and manually record behaviours. Assessments will be conducted at 0, 3, 6, and 9 weeks. Physical activity, sedentary behaviour and sleep-wake behaviours will be measured using the wrist worn Geneactiv accelerometer. Linear mixed models will be used to examine differences between groups and over time using an alpha of 0.01.

DISCUSSION

This study will evaluate an app-based multi-behavioural intervention to improve physical activity, sedentary behaviour and sleep; and the relative efficacy of two different approaches to self-monitoring these behaviours. Outcomes will provide information to inform future interventions and self-monitoring targeting these behaviours.

TRIAL REGISTRATION

ACTRN12615000182594 (Australian New Zealand Clinical Trials Registry. Registry URL: www.anzctr.org.au ; registered prospectively on 25 February 2015).

Intervention fidelity for a complex behaviour change intervention in community pharmacy addressing cardiovascular disease risk

Delivery of cardiovascular disease (CVD) prevention programs by community pharmacists appears effective and enhances health service access. However, their capacity to implement complex behavioural change processes during patient counselling remains largely unexplored. This study aims to determine intervention fidelity by pharmacists for behavioural components of a complex educational intervention for CVD prevention. After receiving training to improve lifestyle and medicines adherence, pharmacists recruited 70 patients aged 50-74 years without established CVD, and taking antihypertensive or lipid lowering therapy. Patients received five counselling sessions, each at monthly intervals. Researchers assessed biomedical and behavioural risk factors at baseline and six months. Pharmacists documented key outcomes from counselling after each session. Most patients (86%) reported suboptimal cardiovascular diets, 41% reported suboptimal medicines adherence, and 39% were physically inactive. Of those advised to complete the intervention, 85% attended all five sessions. Pharmacists achieved patient agreement with most recommended goals for behaviour change, and overwhelmingly translated goals into practical behavioural strategies. Barriers to changing behaviours were regularly documented, and pharmacists reported most behavioural strategies as having had some success. Meaningful improvements to health behaviours were observed post-intervention. Findings support further exploration of pharmacists' potential roles for delivering interventions with complex behaviour change requirements.

Greater bed- and wake-time variability is associated with less healthy lifestyle behaviors: a cross-sectional study

AIM

This study examines associations between the variability in bed/rise times, usual bed/rise time and dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and a composite index of behaviors.

SUBJECT AND METHODS

A random sample of Australian adults drawn from an online Panel cohort in 2013 completed a cross-sectional online survey. A total of 1,317 participants, median age 57 (IQR=20) completed the survey. Bed- and wake times, variability in bed- and wake-times, dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and socio-demographics were assessed using a questionnaire. Associations were examined with generalized linear models.

RESULTS

Having bed - times that varied by >30 min were associated with lower dietary quality, higher alcohol consumption, higher sitting time, more frequent insufficient sleep and poorer overall pattern of lifestyle behaviors. Greater variability in wake times, usual bed times and usual wake times were inconsistently associated with lifestyle behaviours.

CONCLUSIONS

Greater bed-time variability is associated with a less healthy pattern of lifestyle behaviors. Greater consistency in sleep timing may contribute to, or be reflective of, a healthier lifestyle.

Development and Validation of a Disease-Specific Instrument to Measure Diet-Targeted Quality of Life for Postoperative Patients with Esophagogastric Cancer

BACKGROUND

Patients who have undergone esophagectomy or gastrectomy have certain dietary limitations because of changes to the alimentary tract. This study attempted to develop a psychometric scale, named "Esophago-Gastric surgery and Quality of Dietary life (EGQ-D)," for assessment of impact of upper gastrointestinal surgery on diet-targeted quality of life.

METHODS

Using qualitative methods, the study team interviewed both patients and surgeons involved in esophagogastric cancer surgery, and we prepared an item pool and a draft scale. To evaluate the scale's psychometric reliability and validity, a survey involving a large number of patients was conducted. Items for the final scale were selected by factor analysis and item response theory. Cronbach's alpha was used for assessment of reliability, and correlations with the short form (SF)-12, esophagus and stomach surgery symptom scale (ES(4)), and nutritional indicators were analyzed to assess the criterion-related validity.

RESULTS

Through multifaceted discussion and the pilot study, a draft questionnaire comprising 14 items was prepared, and a total of 316 patients were enrolled. On the basis of factor analysis and item response theory, six items were excluded, and the remaining eight items demonstrated strong unidimensionality for the final scale. Cronbach's alpha was 0.895. There were significant associations with all the subscale scores for SF-12, ES(4), and nutritional indicators.

CONCLUSIONS

The EGQ-D scale has good contents and psychometric validity and can be used to evaluate disease-specific instrument to measure diet-targeted quality of life for postoperative patients with esophagogastric cancer.