Evaluation of the population-level impacts of the LiveLighter® obesity prevention campaign from 2012 to 2019 based on serial cross-sectional surveys

BACKGROUND

Halting and reversing the upward trend in obesity requires sustained implementation of comprehensive, evidence-based strategies at the population-level. The LiveLighter® program targets adults using a range of public education strategies, including mass media campaigns, to support healthy lifestyle changes to attain or maintain a healthy weight and reduce the risk of chronic disease. LiveLighter® has been implemented in Western Australia (WA) since 2012 and, to our knowledge, includes the longest running adult-targeted mass media campaign for healthy weight and lifestyle promotion and education globally. This evaluation assessed the impact of LiveLighter® on WA adults' knowledge, intentions and behaviours as they relate to healthy eating and body weight from 2012 to 2019.

METHODS

LiveLighter® mass media campaigns, which are TV-led and aired statewide, depict genuine, graphic imagery of visceral fat around internal organs to raise awareness about the link between excess body weight and chronic diseases; demonstrate how unhealthy food and drink consumption can contribute to unhealthy weight gain; and recommend healthy alternatives. Cross-sectional telephone surveys were conducted at baseline and following each campaign phase with an independent, randomly selected sample of WA adults aged 25 to 49 years (n = 501 to n = 1504 per survey) to assess their knowledge of the link between excess body weight and chronic diseases, and their intentions and behaviours related to healthy eating and weight. Multivariable logistic regression models were undertaken to assess differences in responses between baseline and each post-campaign survey.

RESULTS

Compared to baseline, there were significant increases in the proportion of respondents reporting knowledge of excess body weight as a risk factor for certain cancers and type 2 diabetes, intentions to eat more fruit and vegetables and drink less sugar sweetened beverages (SSBs) in the next seven days, and the proportion of respondents who reported meeting guidelines for daily vegetable intake. Reported consumption of SSBs significantly decreased.

CONCLUSIONS

LiveLighter® is associated with improvements in knowledge of the health risks associated with excess body mass, increased vegetable intake and reduced SSB consumption in WA adults. These findings support the use of sustained, well-designed healthy lifestyle promotion and education programs as part of a comprehensive obesity prevention strategy.

Australian adults' attitudes towards government actions to protect children from digital marketing of unhealthy food and drink products

ISSUE ADDRESSED

This study assessed Australian adults' attitudes towards government actions to protect children from digital marketing of unhealthy food and drink products.

METHODS

An online survey was undertaken by Australian adults aged 18-64 recruited via two national panels in December 2019 (N = 2044).

RESULTS

Most respondents (69%) agreed the Government should protect children from unhealthy food and drink marketing and advertising broadly. Those who agreed most commonly indicated children should be protected up to age 16 (34%) or 18 (24%). There was widespread support for government actions to stop unhealthy food and drink marketing on digital platforms (e.g., internet sites) (68%-69%) and various digital marketing techniques (e.g., advertising by brands on social media) (56%-71%). A total ban on targeting unhealthy food and drink marketing to children online received the highest level of support (76%). Most respondents (81%) disagreed unhealthy food and drink companies should be able to collect children's personal information for marketing purposes. Support for examined actions was generally higher among older adults, more educated adults and more frequent internet users, lower among males, and similar between parents and non-parents.

CONCLUSIONS

There is public perception that the government is responsible for protecting children, well into adolescence, from unhealthy food and drink marketing broadly. Widespread public support extends to specific actions to reduce children's exposure to digital marketing of unhealthy food and drink products. SO WHAT?: Implementation of policies to protect children from digital marketing of unhealthy food and drink products would be well received by the Australian public.

Potential impact of the adult-targeted LiveLighter "Sugary Drinks" campaign on adolescent consumption: Findings from a national cross-sectional school survey

ISSUE ADDRESSED

To examine the potential impact on trends in reported adolescent sugar-sweetened beverage (SSB) consumption following the adult-targeted Western Australian (WA) LiveLighter "Sugary Drinks" campaign, which is a television-led healthy lifestyle promotion and education mass media campaign that aired in multiple bursts between July 2013 and December 2018.

METHODS

Data were from a repeated cross-sectional survey of Australian secondary school students aged 12-17 years conducted nation-wide in 2009-2010 (n = 13 790 from 238 schools), 2012-2013 (n = 10 309 from 196 schools) and 2018 (n = 9102 from 104 schools).

RESULTS

Significant declines in high SSB consumption (≥4 cups/week) were observed between 2009-2010 and 2012-2013 among students in both WA (27.1% vs 20.3%; odds ratio [OR] = 0.65, 95% confidence interval [CI] = 0.50-0.84, P = .001) and all other states and territories combined (30.6% vs 21.4%; OR = 0.60, 95% CI = 0.53-0.68, P < .001). Compared to 2012-2013, the proportion of students in WA who reported high SSB consumption was significantly lower in 2018 (20.3% vs 9.6%; OR = 0.37, 95% CI = 0.21-0.65, P = .001), whereas this significant decrease was not observed in all other states and territories combined (21.4% vs 17.8%; OR = 0.81, 95% CI = 0.67-0.97, P = .024). Interaction testing indicated that the recent decline observed in WA was more pronounced among female than male students.

CONCLUSIONS

Mass media campaigns targeted towards the Australian adult population may have favourable effects among adolescents with the steeper decline in high SSB consumption observed in WA between 2012-2013 and 2018 coinciding with the repeated airing of the LiveLighter "Sugary Drinks" campaign in this state. SO WHAT?: Government investment in mass media campaigns may hasten declines in adolescents' SSB consumption.

Food purchasing practices in various retail settings and dietary intake: A cross-sectional survey of Australian adolescents

BACKGROUND/AIMS

Discretionary, energy-dense, nutrient-poor food and drinks are heavily marketed and readily available in retail settings frequented by adolescents. This study examines associations between food purchasing practices in various retail settings and dietary intake among Australian adolescents.

METHODS

Participants were students in years 8 to 11 (ages 12-17 years) who completed the 2009-10 (n = 13 790), 2012-13 (n = 10 309) or 2018 (n = 9102) National Secondary Students' Diet and Activity (NaSSDA) cross-sectional survey. Multistage stratified random sampling was used. An online survey completed at school assessed self-reported frequency of food purchasing practices in various retail settings and consumption of discretionary food, sugary drinks, fruit and vegetables. Generalised linear regression models examined associations between food purchasing practices and dietary behaviour.

RESULTS

Relative to students who brought lunch from home, those who purchased lunch from school or nearby outlets reported higher intake of discretionary food and sugary drinks and lower fruit intake. Buying lunch from school was also associated with lower vegetable intake. Buying food or drinks on the school commute, outside school grounds during school hours, from supermarket checkouts, and using mobile phone apps were each associated with higher discretionary food and sugary drink intake (all P < .01).

CONCLUSIONS

Purchasing food or drink in various retail settings is associated with higher intake of discretionary food and drink among Australian adolescents, and some purchasing practices appeared to displace fruit and vegetable intake. SO WHAT?: These findings highlight a need to improve the accessibility and promotion of healthier food and drink options in schools and other retail settings.

Engaging lower screening groups: a field experiment to evaluate the impact of a multiwave national campaign on participation in the National Bowel Cancer Screening Program

OBJECTIVES

This field study evaluated a multiwave media campaign that aired in 2019 to promote participation in the Australian National Bowel Cancer Screening Program (NBCSP), which provides free biennial mailed-out immunochemical faecal occult blood test (iFOBT) kits to Australians aged 50-74 years.

DESIGN

Adjusted negative binomial regression models determined rate ratios of iFOBT kits returned during and following three campaign waves compared with 2018 (baseline). Interaction terms determined whether effects differed by gender×age group, socioeconomic status (SES) and previous participation.

SETTING

Australia.

PARTICIPANTS

All Australians eligible for the NBCSP (men and women aged 50-74 years) who returned an iFOBT kit between 1 January 2018 and 30 October 2019.

INTERVENTIONS

A multiwave national integrated media campaign to promote participation in the NBCSP.

MAIN OUTCOME MEASURES

iFOBT kit return rate and number of iFOBT kits returned during and immediately following campaign activity overall and within historically lower screening groups (men, 50-59 years old; lower SES; never participants).

RESULTS

The rate of iFOBT kits returned increased significantly during all three campaign waves, with evidence of carry-over effects of the second wave coinciding with a general practitioner mail-out strategy (all p<0.001). At each wave, effects were observed among men and women in the younger (50-59 years old) age group, but were less consistent for the older age group. Each SES group and both never and previous participants had increased return rates at each wave, but increases were stronger among mid-higher SES and those who had never participated. An estimated 93 075 extra iFOBT kits were returned due to the campaign.

CONCLUSIONS

The campaign increased participation, especially among those who were younger and never previously screened-key groups to recruit given reparticipation rates of over 80%. Ongoing investment in national integrated media campaigns of sufficient duration and intensity can increase bowel cancer screening and ultimately save lives.

Exploring Intended and Unintended Reactions to Healthy Weight and Lifestyle Advertisements: An Online Experiment

BACKGROUND

To address concerns that healthy weight and lifestyle campaigns (HWLCs) could have unintended psychological or behavioral consequences, this study tested reactions to TV advertisements from two HWLCs: LiveLighter^® (employs graphic health effects messaging) and Swap It Don't Stop It (employs animation and light-hearted messaging).

METHODS

An online between-subjects experiment tested reactions to one of five advertisements: "Toxic Fat"; "Sugary Drinks" (both from LiveLighter); "Become a Swapper"; "How to Swap It" (both from Swap It); and "HSBC Bank" (control) among 2,208 adults from Western Australia and Victoria, Australia. Responses assessed were cognitive and emotional reactions, behavioral intentions, internalized weight bias, antifat attitudes, self-esteem and body dissatisfaction.

RESULTS

The HWLC advertisements prompted favorable cognitive reactions and weak to neutral positive and negative emotional responses. HWLC advertisements promoted stronger intentions to engage in adaptive lifestyle behaviors compared with the control advertisement. Intention to engage in maladaptive behaviors (e.g., skipping meals) was low overall and did not differ by condition. Compared with the control condition, participants who saw LiveLighter "Sugary Drinks" showed weaker disagreement with antifat attitudes; however, mean antifat attitude scores were still at the low end of the scale. HWLC advertisements did not promote internalized weight bias, reduced self-esteem or body dissatisfaction compared with the control advertisement.

CONCLUSIONS

Overall, HWLC advertisements performed favorably compared with the control advertisement and showed no clear evidence of adverse impacts. Findings suggest HWLC advertisements may not promote negative psychological and behavioral consequences and can continue to be used in obesity prevention efforts.

Exploring grandparents' receptivity to and preferences for a grandchild nutrition-focused intervention: A qualitative study

OBJECTIVE

Interventions promoting healthy eating in children typically overlook the critical role of grandparent caregivers. Utilising a co-design approach, this study (i) assessed the receptiveness of grandparents to a nutrition-focused resource aimed at promoting healthy eating in their grandchildren and (ii) explored grandparents' preferences for resource delivery and dissemination.

METHODS

Seventy-nine grandparents (58% female; mean age=69.37 years) who were secondary carers to a grandchild aged 3-12 years participated in one of 10 focus groups. Focus group transcripts were imported into NVivo for coding and semantic thematic analysis.

RESULTS

The vast majority of focus groups (n=9) were receptive to receiving a nutrition-focused resource. Participants indicated that such a resource should contain strategies that help grandparents promote healthy eating in their grandchildren rather than outline what grandchildren should be fed. A range of delivery (pamphlets, seminars and fridge magnets) and dissemination (online, email) methods were suggested.

CONCLUSIONS

A nutrition resource that equips grandparents with the strategies they need to promote healthy eating in their grandchildren would likely be welcomed.

IMPLICATIONS FOR PUBLIC HEALTH

Results provide program developers with the preliminary information required to tailor childhood lifestyle interventions to the needs of grandparents, thus helping increase acceptability and uptake.

LiveLighter® 'Junk Food' mass media campaign increases behavioural strategies to reduce consumption

The LiveLighter® 2016 'Junk Food' campaign ran for 5 weeks in Western Australia (WA) and urged adults to reduce their junk food consumption to avoid weight gain and associated chronic disease. A cohort design assessed campaign impact on knowledge, beliefs and behaviour. Pre-campaign (n = 1501) and post-campaign (n = 737) telephone surveys of WA adults aged 25-49 were undertaken. A post-campaign-only sample (n = 501) controlled for pre-test effects. The campaign reached 57% of respondents and increased knowledge of the link between overweight and non-alcoholic fatty liver disease (78% cf. 87%; P < 0.01). Following campaign activity, respondents were more likely to avoid purchasing food from settings depicted in the advertisements (fast food outlets: 63% cf. 77%; service stations: 82% cf. 93%; vending machines: 87% cf. 96%; all P < 0.001), particularly among pre-campaign consumers of fast food and salty snacks (≤2 times/week). Weight-loss self-efficacy increased among adults with higher body weight and campaign exposure (89% cf. 97%; P < 0.01), and there was no increased endorsement of overweight stereotypes among the full sample. Support for fiscal disincentives and nutritional disclosure policies increased among healthy weight adults. LiveLighter® positively influenced knowledge, beliefs and behaviours, along with attitudes towards policies to encourage healthy eating, supporting LiveLighter® as an advocacy campaign.

Trends and determinants of active school travel among Australian secondary school students: national cross-sectional data from 2009 to 2018

OBJECTIVE

To examine active school travel trends and predictors among Australian secondary school students (aged 12-17) between 2009 and 2018.

METHODS

Three cross-sectional surveys (2009-10: N=13,790; 2012-13: N=10,309; and 2018: N=9,102) using a web-based self-report questionnaire. Logistic regression was used to identify differences in active travel (to and/or from school every weekday) between survey years and predictors.

RESULTS

From 2009-10 to 2012-13 to 2018, active travel decreased from 33.6% to 32.3% to 29.5% among females, and from 37.4% to 36.6% to 32.6% among males. Distance, female sex and regional location were associated with a lower likelihood of active travel. Students with pocket money, those who spoke a language other than English at home, and Aboriginal and/or Torres Strait Islander students were more likely to actively travel.

CONCLUSIONS

Between 2009-10 and 2018, active school travel among secondary students in Australia declined. Several factors were found to be associated with active travel.

IMPLICATIONS FOR PUBLIC HEALTH

This is the first national study on active travel trends among secondary students in Australia. The recent decline requires action given the increasing prevalence of overweight and climate change.

Cost-effectiveness of LiveLighter® - a mass media public education campaign for obesity prevention

Background

The Western Australian LiveLighter® program has implemented a series of mass media advertising campaigns that aim to encourage adults to achieve and maintain a healthy weight through healthy behaviours. This study aimed to assess the cost-effectiveness of the LiveLighter® campaign in preventing obesity-related ill health in the Western Australian population from the health sector perspective.

Methods

Campaign effectiveness (delivered over 12 months) was estimated from a meta-analysis of two cohort studies that surveyed a representative sample of the Western Australian population aged 25–49 years on discretionary food consumption one month pre- and one month post-campaign. Campaign costs were derived from campaign invoices and interviews with campaign staff. Long-term health (measured in health-adjusted life years (HALYs)) and healthcare cost-savings resulting from reduced obesity-related diseases were modelled over the lifetime of the population using a validated multi-state lifetable Markov model (ACE-Obesity Policy model). All cost and health outcomes were discounted at 7% and presented in 2017 values. Uncertainty analyses were undertaken using Monte-Carlo simulations.

Results

The 12-month intervention was estimated to cost approximately A$2.46 million (M) (95% uncertainty interval (UI): 2.26M; 2.67M). The meta-analysis indicated post-campaign weekly reduction in sugary drinks consumption of 0.78 serves (95% UI: 0.57; 1.0) and sweet food of 0.28 serves (95% UI: 0.07; 0.48), which was modelled to result in average weight reduction of 0.58 kilograms (95%UI: 0.31; 0.92), 204 HALYs gained (95%UI: 103; 334), and healthcare cost-savings of A$3.17M (95%UI: A$1.66M; A$5.03M). The mean incremental cost-effectiveness ratio showed that LiveLighter® was dominant (cost-saving and health promoting; 95%UI: dominant; A$7 703 per HALY gained). The intervention remained cost-effective in all sensitivity analyses conducted.

Conclusion

The LiveLighter® campaign is likely to represent very good value-for-money as an obesity prevention intervention in Western Australia and should be included as part of an evidence-based obesity prevention strategy.

Prevalence and trends in Australian adolescents' adherence to 24-hour movement guidelines: findings from a repeated national cross-sectional survey

Background

24-hour movement guidelines recommend a healthy balance of high levels of physical activity, low levels of sedentary behaviour and appropriate sleep duration each day. At present, surveillance data on how Australian adolescents are performing against these guidelines are lacking. This study aims to describe the extent to which Australian secondary school students are adhering to the physical activity, sedentary recreational screen time and sleep duration recommendations outlined in the national 24-hour movement guidelines for children and young people. It also examines whether there are socio-demographic differences in levels of compliance and if there have been significant changes in these behaviours over time.

Methods

A repeated national cross-sectional survey of students in grades 8 to 11 (ages 12-17 years) was conducted in 2009-2010 (n=13,790), 2012-2013 (n=10,309) and 2018 (n=9,102). Students’ self-reported physical activity, screen time and sleep behaviours were assessed using validated instruments administered in schools via a web-based questionnaire.

Results

In 2018, around one in four students (26%) did not meet any of the 24-hour movement guidelines, while only 2% of students met all three. Adherence to the sleep duration recommendation was highest (67%), with substantially smaller proportions of students meeting the physical activity (16%) and screen time (10%) recommendations. Differences in adherence by sex, grade level and socio-economic area were apparent. Students’ compliance with the screen time recommendation has declined over time, from 19% in 2009-2010 to 10% in 2018. However, there has been no significant change in the proportion meeting the physical activity (15% in 2009-2010 cf. 16% in 2018) and sleep duration (69% in 2009-2010 cf. 67% in 2018) recommendations. Compliance with all three guidelines has remained very low (<3%) across each survey round.

Conclusions

There is considerable scope to improve Australian adolescents’ physical activity and sedentary behaviours in line with the national 24-hour movement guidelines. Policy proposals and environmental interventions, particularly those focused on replacing sedentary screen time with physical activity (e.g. promotion of active commuting to/from school), are needed to better support Australian adolescents in meeting the 24-hour movement guidelines.

Adolescents report low opposition towards policy options to reduce consumption of sugary drinks

BACKGROUND

Policy makers benefit from insight into consumer perceptions of potential sugary drink policy measures. Adolescents are among the highest consumers in Australia, yet their perceptions are unknown.

OBJECTIVES

To determine adolescents' perceptions of potential policies aimed at reducing sugary drink consumption and explore variation in perceptions.

METHODS

Data were collected via a nationally representative survey of Australian secondary school students (aged 12-17) using a stratified two-stage probability design (n = 9102). Survey questions assessed receptiveness to five policy options, sugary drink consumption, perceptions of health effects and demographics.

RESULTS

Low proportions (13%-29%) were somewhat/strongly against policy options, 35% to 45% were neutral, and 27% to 52% were somewhat/strongly in favour. Highest support was observed for text warning labels on sugary drinks (52%), followed by tax with investment in healthy weight programmes (43%), standalone tax (36%), restricting school sales (30%) and restricting advertising to children (27%). Sex, sugary drink consumption and perceptions were significantly associated with most assessed policy options in bivariate analyses (P < .01). Significant associations between sex and consumption with selected policy options persisted in adjusted multilevel models.

CONCLUSIONS

Opposition towards policy options was low overall and neutrality was common. This creates opportunity for early intervention to increase public support for addressing specific health issues.

Differences in healthiness perceptions of food and dietary patterns among the general public and nutrition experts: A cross-sectional online survey

ISSUES ADDRESSED

Diet quality plays a vital role in the prevention of prevalent non-communicable diseases; however, misperceptions of healthiness of common foods and beverages may be undermining Australians' attempts to maintain a healthy diet. The current study aimed to assess the extent and nature of differences in public and expert opinion in the foods, beverages and dietary patterns that are considered healthy.

METHODS

A cross-sectional online survey of 1,097 Victorian adults aged 18-64 and 134 professional dietitians and nutritionists assessed healthiness perceptions of foods, beverages and dietary patterns, self-reported dietary patterns, and factors considered when making healthy choices. Differences in perceptions and dietary patterns between samples and by sex, socio-economic area and level of education were assessed using multivariable logistic regression.

RESULTS

There were large discrepancies in which items the public and expert samples considered healthy. Females and those in high socio-economic areas tended to report healthiness perceptions that aligned with the expert sample to a greater degree than their counterparts. Personal judgement of products was important to both samples when making decisions about healthy choices.

CONCLUSIONS

The public and expert samples differed greatly in healthiness perceptions with significant variation by demographics. SO WHAT?: Well-funded, sustained public health campaigns are needed to provide the public with evidence-based health and nutrition information and combat persuasive, misleading messaging from popular media and marketing.

Energy drink consumption among Australian adolescents associated with a cluster of unhealthy dietary behaviours and short sleep duration

BACKGROUND

Non-alcoholic energy drinks ('energy drinks') are high in sugar, as well as caffeine, leading to concerns regarding their suitability for children and adolescents. Despite this, marketing of energy drinks is often directed at adolescents, and there are no age restrictions on the sale of these products in Australia. The current study aimed to examine patterns in consumption of energy drinks among Australian secondary school students and identify sociodemographic and behavioural correlates associated with regular consumption.

METHODS

Participants were 8942 students in Years 8 to 11 (aged 12 to 17 years) who participated in the 2018 National Secondary Students' Diet and Activity (NaSSDA) cross-sectional survey. A multistage stratified random sampling procedure was used. Within the school setting, students self-completed an online questionnaire assessing their dietary, physical activity and sedentary behaviours. A multilevel logistic regression model was used to examine associations between energy drink consumption and sociodemographic and behavioural factors.

RESULTS

Overall, 8% of students reported consuming energy drinks on a weekly basis ('regular consumers'). A further 16% indicated they consume less than one cup per week of these types of drinks, while around three-quarters (76%) reported they do not consume energy drinks. Regular consumption of energy drinks was independently associated with being male, having greater weekly spending money, high intakes of snack foods, fast food, other sugar-sweetened beverages and fruit juice, as well as short sleep duration. There was no independent association with other sociodemographic characteristics (i.e., year level, level of disadvantage, geographic location), consumption of vegetables and fruit, physical activity level, or sedentary recreational screen time.

CONCLUSIONS

While most Australian adolescents do not consume energy drinks, regular consumption is more prevalent among males, and consumption appears to cluster with other unhealthy dietary behaviours and short sleep duration. Findings support the need for policies that will reach identified at-risk groups (e.g., increased regulation of the marketing and sale of energy drinks), as well as suggest opportunities for interventions targeting energy drink consumption alongside other unhealthy dietary behaviours.

Food and drink marketing on social media and dietary intake in Australian adolescents: Findings from a cross-sectional survey

Unhealthy food and drink marketing is prominent on social media and use of such platforms is widespread among adolescents. This study aims to examine the association between exposure to and engagement with food or drink advertisements on social media and unhealthy food and drink intake in Australian adolescents. In 2018, a representative sample of secondary school students aged 12-17 years (N = 8708) self-reported how frequently they saw food or drink advertisements on social media (exposure), 'liked' or 'shared' food or drink posts (engagement), and consumption of various unhealthy food and drinks. Multilevel logistic regression assessed the association between exposure to and engagement with food marketing on social media and high intake of unhealthy food and drinks. Fifty-five percent of students reported seeing a food or drink advertisement on social media at least weekly, while engagement was less frequent. Exposure to a food or drink advertisement on social media at least once in the last week was associated with a high intake of unhealthy drinks, while liking or sharing a food or drink post at least once in the last month was associated with a high intake of unhealthy food and drinks (all p < 0.01). As frequency of engagement with this type of marketing increased, so too did the likelihood of a high intake of unhealthy food and drinks. The association between exposure to and engagement with food or drink marketing and high unhealthy drink intake was driven by males, while all associations persisted irrespective of age. Holding manufacturers to higher standards in their digital marketing of unhealthy food and drink products through improved policy design and enforcement capability may be crucial in enabling young individuals to maintain a healthy diet.

Further evidence from the LiveLighter® campaign: A controlled cohort study in Victoria and South Australia

ISSUE ADDRESSED

The LiveLighter^® healthy weight and lifestyle social marketing campaign, developed in Western Australia, employs graphic advertising to communicate negative health effects of overweight and motivate behaviour change. This study extends prior evidence of the effectiveness of the LiveLighter^® campaign by evaluating its implementation in a new jurisdiction.

METHODS

A controlled cohort design was employed in intervention (Vic) and comparison states (SA), with and without campaign exposure. Population surveys conducted at baseline (BL) (n = 1000 each state), had 75% retention at follow-up (FU) (Vic: n = 715; SA: n = 787).

RESULTS

Total campaign awareness was moderate (61.5%). Exposed respondents indicated the campaign was "believable" (91.0%), made a strong argument for reducing weight (87.3%), made them "stop and think" (70.1%), motivated action to reach/stay a healthy weight (59.1%) and was "relevant" (55.6%). The proportion of respondents indicating "toxic fat build up" was a health consequence of overweight increased significantly from BL to FU in Vic and to a lesser extent in SA (Vic:55.7% vs 75.9%; SA:58.1% vs 62.6%, interaction P < .001). The proportion indicating cancer is a health consequence of overweight increased significantly from BL to FU in Vic, but not in SA (Vic:77.1% vs 83.4%; SA:77.8% vs 78.1%, interaction P < .05).

CONCLUSIONS

This study extends the evidence base for the LiveLighter^® campaign. Sustained campaign activity with clear behavioural recommendations is required to translate improved knowledge into behaviour change.

SO WHAT

Evidence-based mass media campaigns can positively impact health behaviours to address the unsustainable increasing burdens of unhealthy weight, dietary risk and inadequate physical activity. A National Obesity Campaign is needed and LiveLighter^® is a ready-made, relevant Australian resource.

Grandparents' perceptions of the barriers and strategies to providing their grandchildren with a healthy diet: A qualitative study

Grandparents are playing an increasingly important role in shaping their grandchildren's nutritional environment. Evidence-based interventions tailored to grandparents thus constitute a potential means of promoting healthy eating among children. For such interventions to be effective, they must account for the unique issues encountered by grandparents. However, research examining the potential needs of grandparents is limited. The present study thus explored (i) grandparents' perceptions of the barriers to providing their grandchildren with healthy food and minimizing consumption of unhealthy food and (ii) the strategies grandparents believe help increase their grandchildren's consumption of healthy food and reduce intake of unhealthy food. Seventy-nine grandparents, each of whom provided care to at least one grandchild aged 3-12 years, participated in one of ten focus groups. Transcripts from each of the groups were imported into NVivo for qualitative coding and semantic thematic analysis. The food preferences of their grandchildren, the promotion of unhealthy food consumption by their grandchildren's parents, advertising of unhealthy food, and peer pressure were the most frequently cited barriers to healthy food consumption. Grandparents reported using multiple strategies to increase their grandchildren's fruit and vegetable consumption and minimize unhealthy food intake. The most common were disguising vegetables, making fruit and vegetables appealing, managing child eating (e.g., limiting access to unhealthy food), saying no to requests for unhealthy food, involving grandchildren in meal planning and cooking, and using rewards. Findings suggest that grandparents may need support with managing food preferences and navigating and negotiating complex relations with parents regarding child feeding.

Secondary school canteens in Australia: analysis of canteen menus from a repeated cross-sectional national survey

OBJECTIVE

The current study aimed to assess the nutritional quality of Australian secondary school canteen menus.

DESIGN

Stratified national samples of schools provided canteen menus in 2012-2013 and 2018, which were systematically assessed against a 'traffic light' classification system according to the National Healthy School Canteen Guidelines. Items were classified as green (healthiest and recommended to dominate canteen menus), amber (select carefully) or red (low nutritional quality, should not appear on canteen menus), and pricing and promotional strategies were recorded.

SETTING

Australia.

PARTICIPANTS

Canteen menus from 244 secondary schools (2012-2013 n 148, 2018 n 96).

RESULTS

A total of 21 501 menu items were classified. Forty-nine percent of canteen menus contained at least 50 % green items; however, nearly all (98·5 %) offered at least one red item and therefore did not comply with national recommendations. Snacks and drinks had the least healthy profile of all product sectors, and a large proportion of schools supplied products typically of poor nutritional quality (meat pies and savoury pastries 91·8 %, sugary drinks 89·5 %, sweet baked goods 71·5 %, ice creams 64·1 % and potato chips 44·0 %). Red items were significantly cheaper than green items on average, and many schools promoted the purchase of red items on canteen menus (52·8 %). There were few differences between survey waves.

CONCLUSIONS

There is considerable room for improvement in the nutritional quality of canteen menus in Australian secondary schools, including in the availability, pricing and promotion of healthier options. Additional resources and services to support implementation of national guidelines would be beneficial.

Impact of a mass media campaign on participation in the Australian bowel cancer screening program

Objective

To examine the effect of a mass media campaign designed to increase bowel cancer screening participation.

Methods

We assessed weekly participation, from January 2015 to December 2017, in the Australian National Bowel Cancer Screening Program in Victoria, where a seven-week campaign aired in mid-2017, and in the adjacent comparison state of South Australia. Participation, defined as the number of immunochemical faecal occult blood tests returned out of those invited by the Screening Program in the past 16 weeks, was analysed using negative binomial regression.

Results

Compared with non-campaign weeks, there was an increase in the return rate in the campaign state during campaign weeks (adjusted return rates non-campaign weeks = 34.4% vs. campaign weeks = 45.3%, p < 0.01), not observed in the comparison state (38.3% vs. 40.3%, p > 0.05). The increase in the return rate was significantly greater in the campaign state (Rate Ratio of Campaign/Non-Campaign weeks = 1.31, p < 0.01) than the comparison state (1.05, p > 0.05, interaction p < 0.001), and did not differ significantly by age, sex or socio-economic area. The relative increase was greater among never-participants (Rate Ratio of Campaign/Non-Campaign weeks = 1.24) than previous-participants (1.16), interaction p < 0.001).

Conclusions

This mass media campaign increased bowel cancer screening participation, including from never and low participation subgroups. To maximize participation and ensure equitable population benefit, repeated campaigns that reach eligible people about bowel cancer risks and potential life-saving benefits of screening should be standard.

Effects of health star labelling on the healthiness of adults' fast food meal selections: An experimental study

The addition of Health Star Rating (HSR) labelling to menus at fast food outlets is feasible, however how this would impact consumer menu selection remains unclear. The aim of this study was to test whether the addition of HSR labelling to kilojoule (kJ) labelling on menus at fast food outlets would prompt consumers to select healthier meals. Using a between-subjects experimental design, 1007 adults aged 18-49 were allocated to one of four menu labelling conditions: (i) no labelling; (ii) kilojoule labelling; (iii) HSR labelling; and (iv) kilojoule + HSR labelling. Respondents were presented with their assigned menu online and instructed to select an evening meal as they would at a fast food restaurant. The main analyses tested differences by menu labelling condition in the total mean kilojoule content and Nutrient Profiling Score (NPS) of respondents' evening meal selections using one-way ANOVA. The mean kilojoule content of meals did not differ significantly by menu labelling condition. However, respondents in the kilojoule + HSR labelling condition selected healthier meals (lower mean NPS) than those who viewed menu boards with kilojoule labelling only (M = 2.88 cf. M = 3.78, p = 0.046). In addition, in a post hoc per-protocol analysis of respondents who reported using menu labelling to assist their meal selection, respondents shown kilojoule + HSR menu labelling selected meals with a significantly lower kilojoule content compared to those shown HSR labelling only (4751 kJ cf. 5745 kJ, p = 0.038). Findings provide evidence that adding HSRs to kilojoule labelling on menu boards at fast food outlets has the potential to assist adults to make healthier evening meal selections.

Association of the LiveLighter mass media campaign with consumption of sugar-sweetened beverages: Cohort study

ISSUE ADDRESSED

Evaluation of the behavioural impact of Western Australia's LiveLighter healthy weight and lifestyle campaign focussed on decreasing consumption of sugar-sweetened beverages (SSBs) using graphic imagery, as well as monitoring unintended consequences.

METHODS

A cohort design with pre-campaign telephone survey of Western Australian adults aged 25-49 (Time 1 May/Jun 2013: N = 1504) undertaken and repeated following the campaign (Time 2 Aug/Sep 2013: N = 822).

RESULTS

Post-campaign awareness was 67% with respondents in low socio-economic areas most likely to report viewing the campaign frequently. There was evidence of reduced SSB intake from baseline to follow-up among frequent (4+/week) SSB consumers (22% cf. 16%; P = 0.003) and some evidence among overweight (BMI 25+) weekly SSB consumers (56% cf. 48%; P = 0.013). There was also some evidence consumption of sweet food decreased (3+/week: 53% cf. 48%; P = 0.035) while fruit, vegetable and fast food consumption remained stable. Knowledge of potential health consequences of SSBs increased (70% cf. 82%; P < 0.001) with no change in knowledge of potential health consequences of overweight generally (86% cf. 89%). Importantly, there was no increase in endorsement of overweight stereotypes.

CONCLUSIONS

The LiveLighter "Sugary Drinks" campaign positively impacted adults' knowledge and behaviour with regard to SSB consumption in a pattern specific to the campaign messaging and without adverse impact on weight-related stereotypes. SO WHAT?: Findings support the use of mass media for healthy lifestyle change. They suggest the public are receptive to undertaking the campaign's simple concrete lifestyle recommendation and provide an indication of the campaign dose required to achieve positive behaviour change.

You wouldn't eat 16 teaspoons of sugar-so why drink it? Aboriginal and Torres Strait Islander responses to the LiveLighter sugary drink campaign

ISSUE ADDRESSED

The reach and impact of the LiveLighter and Aboriginal sugar-sweetened beverage (SSB) advertisements among Aboriginal and Torres Strait Islander adults.

METHODS

The Aboriginal SSB advertisement launched online in January 2015 and aired on NITV in October/November 2015 as part of the Government-funded LiveLighter campaign. The advertisement was developed in Victoria and featured members of the Victorian Aboriginal community. Another LiveLighter advertisement targeting the general population was broadcast over the same period. Online surveys were completed by 150 Aboriginal and/or Torres Strait Islander adults in November/December 2015.

RESULTS

Around half of respondents reported seeing either the Aboriginal (47%) or the LiveLighter (56%) SSB advertisement, and the proportion was significantly greater in Victoria (Aboriginal: 60%, LiveLighter: 66%) than other states/territories (Aboriginal: 29%, LiveLighter: 43%). Compared to the LiveLighter advertisement, the Aboriginal campaign was seen to be more believable, to be more relevant and to have an important message for the Aboriginal community (P < 0.001). Participants from Victoria were significantly more likely to identify the sugar content of regular soft drink, compared with those from other states/territories (68% vs 40%, P < 0.001). Sixty per cent of participants who had seen the Aboriginal SSB advertisement reported they drank less SSBs compared with 48% of those not exposed, though the difference was not statistically significant (P > 0.05).

CONCLUSIONS

Results suggest the Aboriginal advertisement resonated with Aboriginal and Torres Strait Islander people and impacted knowledge about the sugar content of SSBs, particularly in Victoria where the campaign originated. SO WHAT?: This study highlights the importance of Aboriginal and Torres Strait Islander-led health promotion campaigns and tailoring health messages to the local Aboriginal and/or Torres Strait Islander community.

Physical activity and screen-based recreation: Prevalences and trends over time among adolescents and barriers to recommended engagement

Adolescence is a critical time for disengagement from physical activity making young people a priority group for interventions. To determine whether existing initiatives are working in this population segment and help inform future programs, the present study sought to (i) examine prevalences and trends in physical activity and screen-based recreation among Australian adolescents and (ii) identify the barriers to adolescents meeting recommended guidelines. Two cross-sectional representative samples of Western Australian secondary school students aged 12 to 17years were surveyed in 2009-2010 (n=1505) and 2012-2013 (n=1406). Around a quarter (24%) of boys and just 9% of girls reported engaging in the recommended 60min of physical activity per day in 2012-2013. A minority (13% of boys, 17% of girls) adhered to guidelines for time spent engaging in screen-based recreation (≤2h of electronic media use for entertainment). These findings were comparable to 2009-2010 prevalence levels. Multivariable logistic regression analyses conducted on data from the most recent wave found individual-level barriers to be significantly associated with lower odds of meeting physical activity guidelines in both boys (Adj. OR=0.52, 95% CI=0.38, 0.72) and girls (Adj. OR=0.41, 95% CI=0.25, 0.66). The consistently high proportion of adolescents not meeting physical activity recommendations over time suggests that current efforts to increase physical activity may be failing to have an impact on population-level trends in compliance. While initiatives to improve the built environment may reduce barriers at the environmental level, these initiatives risk having little impact on physical activity if individual level barriers remain unaddressed.

Characteristics of healthy weight advertisements in three countries

OBJECTIVE

High rates of population obesity have resulted in the dissemination of mass media campaigns that focus on achieving and maintaining a healthy weight. The aim of the present study was to analyse advertising techniques used in such campaigns to identify common and differential approaches in three countries with similar cultures and rates of obesity (Australia, the United Kingdom and the United States).

METHODS

An Internet search was conducted to identify healthy weight television advertisements aired in the three countries. Seventy-two advertisements were located and coded according to the advertising techniques employed.

RESULTS

Despite the cultural similarity and comparable obesity rates of the three countries, there were few consistencies in advertising techniques employed. A main focus of the ads was diet, but disparate approaches were used to convey the message in each country.

CONCLUSIONS

The identified wide variation in advertising techniques may suggest that campaign managers would benefit from greater certainty about which advertising approaches are most effective in encouraging lifestyle behaviours associated with a healthy weight. Implications for public health: A more robust evidence base would be useful to guide the development of healthy weight campaigns.

Population-based evaluation of the 'LiveLighter' healthy weight and lifestyle mass media campaign

The Western Australian (WA) 'LiveLighter' (LL) mass media campaign ran during June-August and September-October 2012. The principal campaign ad graphically depicts visceral fat of an overweight individual ('why' change message), whereas supporting ads demonstrate simple changes to increase activity and eat healthier ('how' to change message). Cross-sectional surveys among population samples aged 25-49 were undertaken pre-campaign (N= 2012) and following the two media waves (N= 2005 and N= 2009) in the intervention (WA) and comparison state (Victoria) to estimate the population impact of LL. Campaign awareness was 54% after the first media wave and overweight adults were more likely to recall LL and perceive it as personally relevant. Recall was also higher among parents, but equal between socio-economic groups. The 'why' message about health-harms of overweight rated higher than 'how' messages about lifestyle change, on perceived message effectiveness which is predictive of health-related intention and behaviour change. State-by-time interactions showed population-level increases in self-referent thoughts about the health-harms of overweight (P < 0.05) and physical activity intentions (P < 0.05). Endorsement of stereotypes of overweight individuals did not increase after LL aired. LL was associated with some population-level improvements in proximal and intermediate markers of campaign impact. However, sustained campaign activity will be needed to impact behaviour.

Socio-economic disparities in Australian adolescents' eating behaviours

OBJECTIVE

To assess the association between socio-economic position (SEP) and poor eating behaviours in a large representative sample of Australian secondary-school students.

DESIGN

Cross-sectional survey of students' vegetable, fruit, sugar-sweetened beverage and fast-food consumption assessed using validated instruments and collected via a web-based self-report format.

SETTING

Secondary schools across all Australian states and territories.

SUBJECTS

Secondary-school students (n 12 188; response rate: 54 %) aged 12-17 years participating in the 2009-10 National Secondary Students' Diet and Activity (NaSSDA) survey.

RESULTS

Overall, 25 % of students reported consuming ≤1 serving of vegetables/d and 29 % reported eating ≤1 serving of fruit/d. Fourteen per cent of students reported drinking at least 1-2 cups of sugar-sweetened beverages/d while 9 % reported eating fast food ≥3 times/week. After adjusting for other demographic factors, students of lower-SEP areas were more likely to report low intake of vegetables (F(4, 231) = 3·61, P = 0·007) and high frequency of consumption of sugar-sweetened beverages (F(4, 231) = 8·41, P < 0·001) and fast food (F(4, 231) = 4·59, P = 0·001) compared with students of high-SEP neighbourhoods. A positive SEP association was found for fruit consumption among female students only (F(4, 231) = 4·20, P = 0·003). Those from lower-SEP areas were also more likely to engage in multiple poor eating behaviours (F(4, 231)=5·80, P < 0·001).

CONCLUSIONS

Results suggest that socio-economic disparities in Australian adolescents' eating behaviours do exist, with students residing in lower-SEP neighbourhoods faring less well than those from high-SEP neighbourhoods. Reducing social inequalities in eating behaviours among young people should be a key consideration of future preventive strategies.

Prevalence and socio-demographic distribution of eating, physical activity and sedentary behaviours among Australian adolescents

ISSUE ADDRESSED

To examine the prevalence and socio-demographic distribution of adherence to national dietary and physical activity recommendations among Australian secondary school students.

METHODS

Cross-sectional survey of 12,188 students in Years 8 to 11 (aged 12-17 years). Students' self-reported eating, physical activity and sedentary behaviours were assessed using validated instruments administered via an online questionnaire.

RESULTS

Less than one-quarter of students (24%) reported meeting the daily requirement of at least four serves of vegetables, while 41% reported consuming the recommended three or more daily serves of fruit. Just 15% of students reported engaging in at least 60 minutes of moderate-to-vigorous activity every day, and only one in five students met the recommendation of spending no more than two hours per day in small screen recreation. Males were performing better than females in terms of fruit intake and physical activity, but worse in relation to frequency of consumption of sugary drinks and fast food, and time spent using electronic media. The proportion of students meeting fruit and vegetable recommendations declined with advancing year level, while lower socio-economic position (SEP) students were faring less well than those from high SEP neighbourhoods, particularly with regards to healthy eating.

CONCLUSIONS

There is considerable scope for improving young people's health behaviours in line with national dietary and physical activity recommendations.

What types of nutrition menu labelling lead consumers to select less energy-dense fast food? An experimental study

This study assessed whether the inclusion of kilojoule labelling alone or accompanied by further nutrition information on menus led adults to select less energy-dense fast food meals. A between-subjects experimental design was used with online menu boards systematically varied to test the following labelling conditions: none (control); kilojoule; kilojoule+percent daily intake; kilojoule+traffic light; and kilojoule+traffic light+percent daily intake. Respondents were 1294 adults aged 18-49 in Victoria, Australia who had purchased fast food in the last month and were randomly assigned to conditions. Respondents in the no labelling condition selected meals with the highest mean energy content and those viewing the kilojoule and kilojoule+traffic light information selected meals with a significantly lower mean energy content, that constituted a reduction of around 500kJ (120kcal). Respondents most commonly reported using the traffic light labels in making their selections. These findings provide support for the policy of disclosure of energy content on menus at restaurant chains. Given the magnitude of the reduction in energy density reported, and the prevalence of fast food consumption, this policy initiative has the potential to yield health benefits at the population level.

Public opinion on food-related obesity prevention policy initiatives

ISSUE ADDRESSED

The study was designed to determine public acceptability of various forms of regulation to support a healthy eating environment.

METHODS

Telephone interviews were undertaken in June-July 2010 with a random sample of adults in Australia who were the main grocery buyer for their household.

RESULTS

Data were analysed for 1,511 adults. A clear majority of participants (80% or more) were in favour of traffic light and kilojoule menu labelling, reformulation to reduce the fat, salt and sugar content of processed foods, and regulation of broadcast and non-broadcast avenues used to market unhealthy food and drinks to children. Relatively less support (two-thirds or more), particularly among lower socioeconomic status participants, was shown for taxation policies and controls on food company sponsorship of sports and education programs. Despite the survey's focus on food marketing avenues and methods directed at children, for the most part non-parents were just as likely as parents to support restrictions.

CONCLUSIONS

Overall, these findings indicate that there is strong public support for the introduction of policy initiatives aimed at creating a healthier food environment.

Impact of a mass media campaign linking abdominal obesity and cancer: a natural exposure evaluation

A mass media campaign aired in the Australian state of Victoria aimed to increase awareness and encourage identification of the abdominal circumference for men and women that placed them at increased risk of cancer. The evaluation assessed the extent to which ad exposure was associated with improvement in awareness, intentions and behaviours with respect to weight and cancer. Respondents were overweight or obese adults aged 30-69 years and exposure to the advertisement occurred via commercial television programmes in a natural setting. Questionnaire assessment occurred before, immediately after and 2 weeks following exposure to the advertising, and a comparison group who did not recall the ad completed the same interviews. For the main analyses, the exposure group was those who recalled the advertisement at post-exposure and follow-up (n = 101). Those who did not recall it at either stage comprised the unexposed group (n = 81). The campaign achieved its primary objective of increased awareness of the link between obesity and cancer and the specific waist sizes indicative of risk, as well as increased behavioural intentions with respect to weight and cancer. However, it did not have an effect on self-awareness of weight status, perceived personal risk of cancer or weight loss behaviour.

Improving access to and outcomes from mental health care in rural Australia

OBJECTIVE

Rural Australians face particular difficulties in accessing mental health care. This paper explores whether 51 rural Access to Allied Psychological Services projects, funded under the Better Outcomes in Mental Health Care program, are improving such access, and, if so, whether this is translating to positive consumer outcomes.

DESIGN AND METHOD

The paper draws on three data sources (a survey of models of service delivery, a minimum dataset and three case studies) to examine the operation and achievements of these projects, and makes comparisons with their 57 urban equivalents as relevant.

RESULTS

Proportionally, uptake of the projects in rural areas has been higher than in urban areas: more GPs and allied health professionals are involved, and more consumers have received care. There is also evidence that the models of service delivery used in these projects have specifically been designed to resolve issues particular to rural areas, such as difficulties recruiting and retaining providers. The projects are being delivered at no or low cost to consumers, and are achieving positive outcomes as assessed by standardised measures.

CONCLUSION

The findings suggest that the rural projects have the potential to improve access to mental health care for rural residents with depression and anxiety, by enabling GPs to refer them to allied health professionals. The findings are discussed with reference to recent reforms to mental health care delivery in Australia.

Utilisation of findings from the evaluation of a major primary mental health care initiative in Australia

Much has been written about evaluation utilisation from a theoretical perspective, but relatively less emphasis has been given to empirical studies that examine how the findings from given evaluations are utilised. The current study examined the nature and extent of utilisation of the findings from an ongoing evaluation of a key component of a major national primary mental health care initiative in Australia. The initiative is known as the Better Outcomes in Mental Health Care (BOiMHC) program, and the component involves 111 Access to Allied Psychological Services (ATAPS) projects, which provide mental health care to people who might otherwise have difficulty accessing such services. Nine reports have been produced during the evaluation of the ATAPS projects, and the current study explored how various stakeholders have used the first eight of these reports, via semi-structured interviews with 10 purposefully sampled respondents. The study revealed that the findings in the reports have been put to instrumental use (e.g. influencing decisions about program modification), conceptual use (e.g. furthering the knowledge base regarding the delivery of primary mental health care in general) and symbolic or legitimative use (e.g. confirming the original philosophy behind the BOiMHC program). Various reasons may account for this wide range of uses, including the fact that every effort has been made to identify all relevant stakeholders, garner their support for the evaluation from the outset, and communicate the evaluation findings to them in a relevant manner. The study provides empirical evidence that evaluation findings can be widely utilised, providing they are geared to the needs of the relevant stakeholders.

Building evaluation capacity: definitional and practical implications from an Australian case study

Internationally, evaluation capacity-building activities have mushroomed as demands have increased for government-funded programs to demonstrate that they are effective and efficient. Despite this, there is a lack of clarity in the way in which evaluation capacity-building is defined and conceptualized. The current paper presents a case study of a national evaluation capacity building exercise that we are in the midst of conducting in Australia, and discusses the findings in relation to definitional, conceptual and practical issues. Specifically, we describe an evaluation capacity building exercise involving over 100 mental health projects, detailing the methods that we employ, some of the challenges that we have faced, and the benefits we feel we are achieving. Our key message is that definitions of evaluation capacity-building should not only make reference to equipping organizations to routinely conduct evaluations, but should also stress the varied uses to which evaluation findings can be put. In addition, such definitions should acknowledge some of the valuable by-products of evaluation capacity building activities, such as the development of shared understandings of the program or project being evaluated.