Is food and drink advertising across various settings associated with dietary behaviours and intake among Australian adolescents? Findings from a national cross-sectional survey.

ISSUE ADDRESSED: The pervasive promotion of energy-dense, nutrient-poor food and drinks undermines efforts by adolescents and their parent/carers to maintain a nutritious diet during a crucial developmental period. This study examined the association between awareness of food and drink advertisements and adolescents' dietary behaviours and intake. METHODS: A sample of Australian secondary students aged 12-17 years (N = 8763) self-reported their awareness of food and drink advertisements across seven settings, whether they had tried a new product or asked a parent/carer to purchase a product they had seen advertised, and their consumption of various unhealthy food and drink types. Analyses used multilevel mixed-effects generalised linear models adjusted for school-level clustering, socio-demographic factors and television viewing. RESULTS: Students with higher advertising awareness were more likely to have tried a new product they had seen advertised (adjusted prevalence ratio [APR] = 1.62, 95% CI = 1.51-1.73, p < .001) and asked their parent/carer to buy an advertised product (APR = 1.62, 95% CI = 1.51-1.73, p < .001) at least once in the past month. As advertising awareness increased, so too did students' likelihood of reporting these dietary behaviours. A high unhealthy food intake was more commonly reported among students with higher advertising awareness (APR = 1.45, 95% CI = 1.32-1.58, p < .001), as was a high unhealthy drink intake (APR = 1.29, 95% CI = 1.18-1.42, p < .001). CONCLUSIONS: Australian adolescents are vulnerable to the persuasive effects of food and drink marketing. SO WHAT?: Greater restrictions on the way the food and drink industry can market their products to adolescents are needed to better support them in developing and maintaining positive dietary behaviours.

Tobacco packaging littering behaviours among Australian adults who smoke: findings from cross-sectional and observational studies to inform the implementation of cigarette pack inserts.

BACKGROUND: Cigarette pack inserts are small cards that highlight the benefits of quitting and promote use of smoking cessation support. With evidence from Canada that they increase self-efficacy to quit, quit attempts and sustained cessation, inserts are set to be introduced into tobacco packs sold in Australia. Some people have expressed concern that the introduction of inserts may create more litter if incorrectly disposed of on pack-opening. METHODS: We used a cross-sectional survey to assess self-reported pack-opening location and waste disposal behaviours of people who smoke to determine the potential for littering to occur when tobacco packs are first opened. We also visited a sample of supermarkets, convenience stores and tobacconists located throughout Melbourne, Australia, to discreetly collect observational data regarding pack-opening and waste disposal behaviours at the point of purchase. RESULTS: Among participants in the cross-sectional study (N=369), the majority reported that they opened their most recent tobacco pack at home (70.9%) where there is little potential for littering, and this proportion was higher among those who smoke daily (78.6%) and men (74.3%). Self-reported behaviours that could result in littering were rare; 1.0% reported that they left tobacco packaging where they believed it would be collected for disposal. Of the 128 individuals observed at the point of purchase across 46 stores, 96.9% did not open the tobacco product immediately after purchase. One incident of littering was observed (0.8%). CONCLUSION: The introduction of cigarette pack inserts in Australia is unlikely to create a substantial amount of additional litter.

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.

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.

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.

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.

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.

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.

Can counter-advertising diminish persuasive effects of conventional and pseudo-healthy unhealthy food product advertising on parents?: an experimental study.

BACKGROUND: To help address rising rates of obesity in children, evidence is needed concerning impacts of common forms of marketing for unhealthy child-oriented food products and the efficacy of educational interventions in counteracting any detrimental impacts of such marketing. This study aims to explore parents' responses to advertising for unhealthy children's food products that employ different types of persuasive appeals and test whether a counter-advertising intervention exposing industry motives and marketing strategies can bolster parents' resistance to influence by unhealthy product advertising. METHODS: N = 1613 Australian parents were randomly assigned to view online either a: (A) non-food ad (control); (B) conventional confectionery ad (highlighting sensory benefits of the product); (C) pseudo-healthy confectionery ad (promoting sensory benefits and health attributes of the product); (D) conventional confectionery ad + counter-ad (employing inoculation-style messaging and narrative communication elements); (E) pseudo-healthy confectionery ad + counter-ad. Parents then viewed various snacks, including those promoted in the food ads and counter-ad. Parents nominated their preferred product, then rated the products. RESULTS: Exposure to the conventional confectionery ad increased parents' preference for the advertised product, enhanced perceptions of the product's healthiness and reduced sugar content and boosted brand attitude. Exposure to the pseudo-healthy confectionery ad increased parents' preference for the advertised product, and enhanced perceptions of healthiness, fibre content and lower sugar content. The counter-ad diminished, but did not eliminate, product ad effects on parents' purchasing preference, product perceptions and brand attitudes. The counter-ad also prompted parents to perceive processed foods as less healthy, higher in sugar and lower in fibre and may have increased support for advertising regulation. CONCLUSIONS: Exposure to unhealthy product advertising promoted favourable perceptions of products and increased preferences for advertised products among parents. Counter-advertising interventions may bolster parents' resistance to persuasion by unhealthy product advertising and empower parents to more accurately evaluate advertised food products.

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.

Effect of Exercise Interventions on Anxiety in People with Multiple Sclerosis: A Systematic Review and Meta-analysis.

BACKGROUND: Evidence suggests that exercise can alleviate symptoms associated with multiple sclerosis (MS). However, it is unclear whether exercise alleviates symptoms of anxiety, present in one-third of people with MS. This systematic review and meta-analysis investigates whether exercise interventions are effective in reducing anxiety in people with MS. METHODS: CINAHL, Embase, MEDLINE, PsycINFO, and the Cochrane Controlled Clinical Trials Register were searched to identify relevant randomized controlled trials (RCTs) published up to March 30, 2018. The primary outcome was postintervention difference in anxiety scores between intervention and control groups. Using a restricted maximum likelihood random-effects model, standardized mean differences were pooled and heterogeneity was estimated. Risk of bias was assessed using an a priori modified Cochrane Risk of Bias 2.0 tool. RESULTS: Four RCTs with 133 participants were included. Exercise type included walking, aerobic activities, and cycling. Intervention duration ranged from 8 to 26 weeks. The pooled standardized mean difference in anxiety score was -0.16 (95% CI, -0.50 to 0.19), without heterogeneity. Two studies had high risk of bias, and two had some risk of bias. CONCLUSIONS: Based on available RCT data, exercise does not seem to have an effect on anxiety in people with MS. These results should be interpreted with caution because studies had concerns of bias and small sample sizes, and anxiety was not the primary outcome measure. Future studies should exhibit sufficient reporting standards, alongside publishing protocols. There is opportunity to investigate the effect of exercise in people with MS experiencing clinically relevant levels of anxiety rather than in the general MS population.

Modifiable factors associated with depression and anxiety in multiple sclerosis.

OBJECTIVES: Modifiable lifestyle factors are implicated in multiple sclerosis (MS) symptoms but their role in mood is unclear. This study aimed to investigate associations between lifestyle and depression and anxiety in Australian participants with MS. MATERIALS AND METHODS: Self-reported data from the Australian Multiple Sclerosis Longitudinal Study included the Hospital Anxiety and Depression Scale (HADS) and lifestyle measurements from 1500 participants. SNAP score (range 0-5) was the sum of non-smoking, sufficient fruit/vegetable intake, non-hazardous alcohol consumption, sufficient physical activity and healthy BMI. Analyses by log-binomial and linear regression were adjusted for confounding. RESULTS: Symptoms of depression and anxiety were prevalent in 27% and 40%, respectively; 20% had both. Mean SNAP score was 2.7/5; only 3% met all healthy lifestyle recommendations. Only 10% reported adequate fruit/vegetable intake, and 22% reported a combination of unhealthy BMI, inadequate physical activity and inadequate nutrition. A healthier SNAP score was associated with lower depression prevalence (adjusted prevalence ratio 0.83 [95% CI 0.75, 0.92] per unit increase) and depression severity (adjusted ß-0.44 [95% CI -0.64, -0.24]), but not with anxiety. CONCLUSIONS: Modifiable lifestyle factors are associated with lower frequency and severity of depression, but not anxiety, in Australian people with multiple sclerosis. The associations between a healthier SNAP score and lower depression are likely bi-directional. SNAP risk factor prevalence and co-occurrence, especially inadequate nutrition and low physical activity, were high among Australians with MS.