The impacts of an mHealth intervention targeting parents on health service usage and out-of-pocket costs in the first 9 months of life: The Growing healthy app.

Mobile health (mHealth) interventions provide a low-cost, scalable approach to supporting parents with infant feeding advice with the potential to reduce health care visits and associated costs for infant feeding support. This Australian study examined the impact of the Growing healthy (GH) app on health service utilisation and out-of-pocket costs for families in the first 9 months of their infants life. A quasi-experimental study with a comparison group was conducted in 2015-2016 with an mHealth intervention group (GH app, n = 301) and a nonrandomized usual care group (n = 344). The GH app aimed to support parents of young infants with healthy infant feeding behaviours from birth to 9 months of age. App-generated notifications directed parents to age-and feeding-specific content within the app. Both groups completed surveys at baseline when infants were less than 3 months old (T1), at 6 months (T2) and 9 months (T3) of age. At T3, participants reported health services used and any out-of-pocket costs for advice on infant feeding, growth or activity. App users had lower odds (odds ratio: 0.38 95% confidence interval: 0.25, 0.59) of using one or more services and had lower number of visits to a general practitioner (1.0 vs. 1.5 visits, p = 0.003) and paediatrician (0.3 vs. 0.4 visits, p = 0.049) compared to the usual care group. There was no difference in out-of-pocket costs between groups. Provision of an evidenced-based infant feeding app may provide substantial savings to the health system and potentially to parents through fewer primary health care and paediatrician visits.

Understanding the pathways between prenatal and postnatal factors and overweight outcomes in early childhood: a pooled analysis of seven cohorts.

BACKGROUND/OBJECTIVES: Childhood overweight and obesity are influenced by a range of prenatal and postnatal factors. Few studies have explored the integrative pathways linking these factors and childhood overweight. This study aimed to elucidate the integrative pathways through which maternal pre-pregnancy body mass index (BMI), infant birth weight, breastfeeding duration, and rapid weight gain (RWG) during infancy are associated with overweight outcomes in early childhood from ages 3 to 5 years. SUBJECTS/METHODS: Pooled data from seven Australian and New Zealand cohorts were used (n = 3572). Generalized structural equation modelling was used to examine direct and indirect associations of maternal pre-pregnancy BMI, infant birth weight, breastfeeding duration, and RWG during infancy with child overweight outcomes (BMI z-score and overweight status). RESULTS: Maternal pre-pregnancy BMI was directly associated with infant birth weight (ß 0.01, 95%CI 0.01, 0.02), breastfeeding duration ≥6 months (OR 0.92, 95%CI 0.90, 0.93), child BMI z-score (ß 0.03, 95%CI 0.03, 0.04) and overweight status (OR 1.07, 95%CI 1.06, 1.09) at ages 3-5 years. The association between maternal pre-pregnancy BMI and child overweight outcomes was partially mediated by infant birth weight, but not RWG. RWG in infancy exhibited the strongest direct association with child overweight outcomes (BMI z-score: ß 0.72, 95%CI 0.65, 0.79; overweight status: OR 4.49, 95%CI 3.61, 5.59). Infant birth weight was implicated in the indirect pathways of maternal pre-pregnancy BMI with RWG in infancy, breastfeeding duration, and child overweight outcomes. The associations between breastfeeding duration (≥6 months) and lower child overweight outcomes were fully mediated by RWG in infancy. CONCLUSIONS: Maternal pre-pregnancy BMI, infant birth weight, breastfeeding duration and RWG in infancy act in concert to influence early childhood overweight. Future overweight prevention interventions should target RWG in infancy, which showed the strongest association with childhood overweight; and maternal pre-pregnancy BMI, which was implicated in several pathways leading to childhood overweight.

The contribution of Australian fathers in getting food on the table among families with young children.

OBJECTIVE: To explore how fathers with young children contributed to healthy home food provisioning and the factors enabling or inhibiting their involvement in family food tasks. DESIGN: Cross-sectional study using purpose-designed online survey. The survey assessed the level of responsibilities and practices in family food tasks, food agency (Cooking and Food Provisioning Action Scale), and use of resources to support involvement in family food tasks. Data collection took place over 3 weeks in November-December 2020 when various COVID-19-related restrictions were in place. Descriptive and regression analyses were used to assess psychosocial factors influencing responsibilities in family food tasks and food agency. SETTING: Online survey. PARTICIPANTS: Included in the analysis were 435 Australian fathers with children aged under 5 years. RESULTS: Between 75 and 77 % of fathers in this study reported having at least half of the responsibilities in meal planning, shopping, and cooking. Health was frequently considered when deciding what to eat, but few used nutrition or food labels when shopping, tried new recipes or modified recipes to make them healthier. Involvement in family food tasks was promoted by a higher food agency, but time spent in employment was a significant barrier to reported food agency and greater involvement in food tasks. There was a high interest in resources to support healthy home food provisioning. CONCLUSIONS: The findings suggest the need to consider father-specific strategies to overcome time barriers and opportunities to enhance their capabilities for healthy home food provisioning.

Mothers' experiences of reducing family mealtime screen use in Australian households with young children.

OBJECTIVE: Screen use at mealtimes is associated with poor dietary and psychosocial outcomes in children and is disproportionately prevalent among families of low socio-economic position (SEP). This study aimed to explore experiences of reducing mealtime screen use in mothers of low SEP with young children. DESIGN: Motivational interviews, conducted via Zoom or telephone, addressed barriers and facilitators to reducing mealtime screen use. Following motivational interviews, participants co-designed mealtime screen use reduction strategies and trialled these for 3-4 weeks. Follow-up semi-structured interviews then explored maternal experiences of implementing strategies, including successes and difficulties. Transcripts were analysed thematically. SETTING: Australia. PARTICIPANTS: Fourteen mothers who had no university education and a child between six months and six years old. RESULTS: A range of strategies aimed to reduce mealtime screen use were co-designed. The most widely used strategies included changing mealtime location and parental modelling of expected behaviours. Experiences were influenced by mothers' levels of parenting self-efficacy and mealtime consistency, included changes to mealtime foods and an increased value of mealtimes. Experiences were reportedly easier, more beneficial and offered more opportunities for family communication, than anticipated. Change required considerable effort. However, effort decreased with consistency. CONCLUSIONS: The diverse strategies co-designed by mothers highlight the importance of understanding why families engage in mealtime screen use and providing tailored advice for reduction. Although promising themes were identified, in this motivated sample, changing established mealtime screen use habits still required substantial effort. Embedding screen-free mealtime messaging into nutrition promotion from the inception of eating will be important.

Mapping the behaviour change potential of meal kits to positively influence parental food literacy.

OBJECTIVE: This study aimed to examine the theoretical potential of meal kit subscription services in Australia to promote parental food literacy using the retrospective application of behaviour change frameworks. DESIGN: A one-week subscription was purchased for all Australian-based meal kit subscription services (n 9) to access content and features available to subscribers. Behaviour change techniques (BCTs) identified in the subscription and meal planning features, meal kit delivery (i.e. ingredients and recipes) and website were coded using the behaviour change technique taxonomy (BCTTv1) and associated behaviour change frameworks. Identified BCTs were mapped to the theoretical domains framework to identify potential mechanisms of action for influencing parental food literacy development. SETTING: Australia. RESULTS: Thirty-five BCTs were identified across the nine meal kit services reviewed, ranging from nineteen to twenty-nine BCTs per company. Sixteen BCTs were common to all meal kits services, from the hierarchical clusters of 'goals and planning', 'shaping knowledge', 'social support', 'natural consequences', 'comparison of behaviour', 'repetitions and substitution', 'associations', 'reward and threat', 'antecedents' and 'regulation'. Across the meal kit services, the most frequently identified mechanisms of action were motivation (n 27) and capability (n 19). CONCLUSION: These findings support the applicability of behaviour change frameworks to commercial meal kit subscription services and provide a theory-informed process for identifying BCTs that may be relevant for promoting parental food literacy within this context. Further research is required to explore how families engage with meal kit subscription services to determine the exposure and delivery of identified BCT content and to evaluate the potential influence on food literacy development.

Environmental sustainability and food provision in the early childhood and education setting.

OBJECTIVE: To describe environmentally sustainable (ES) and healthy food provision practices in childcare services in Victoria, Australia. DESIGN: Cross-sectional study. SETTING: Childcare services providing food onsite. PARTICIPANTS: Staff completed an online survey that explored ES food provision practices including purchasing seasonal/local food, food waste awareness/management, and food cost/child/d. A purposively sampled subgroup conducted weighed audits to determine compliance with guidelines and total waste, serving waste (prepared, not served) and plate waste. RESULTS: Survey results found 8 % of services (n 129) had previously conducted food waste audits. Service audits (n 12) found 27 % total food waste (range: 9 % - 64 %). Statistically significant differences in plate waste were found between services who had previously conducted food waste audits (7 %) and those who had not (17 %) (P = 0·04). The most common ES practice was 'providing seasonal food'; the least common was 'maintaining a compost system' and 'less packaged foods'. Most services (95 %) purchased foods from supermarkets with 23 % purchasing from farmers' markets. This was statistically lower for regional/rural services (8 %), compared to metropolitan services (27 %) (P = 0·04). Twenty-seven per cent of services spent AUD2·50 or less per child per day on food. Only one audited service provided a menu compliant with childcare food provision guidelines. CONCLUSIONS: Childcare settings procure and provide large volumes of food; however, food waste awareness appears limited, and environmentally sustainable food procurement practices may be less affordable and difficult to achieve. Understanding the impact of food waste awareness on food waste practices and food costs across time merits further research.

Cross-sectional and prospective associations between behavioural patterns and adiposity in school-aged children.

OBJECTIVE: Behavioural patterns are important in understanding the synergistic effect of multiple health behaviours on childhood adiposity. Most previous evidence assessing associations between patterns and adiposity were cross-sectional and investigated two or three behaviour domains within patterns. This study aimed to identify behavioural patterns comprising four behaviour domains and investigate associations with adiposity risk in children. DESIGN: Parent-report and accelerometry data were used to capture daily dietary, physical activity, sedentary behaviour and sleep data. Variables were standardised and included in the latent profile analysis to derive behavioural patterns. Trained researchers measured children's height, weight and waist circumference using standardised protocols. Associations of patterns and adiposity measures were tested using multiple linear regression. SETTING: Melbourne, Australia. PARTICIPANTS: A total of 337 children followed up at 6-8 years (T2) and 9-11 years (T3). RESULTS: Three patterns derived at 6-8 years were broadly identified to be healthy, unhealthy and mixed patterns. Patterns at 9-11 years were dissimilar except for the unhealthy pattern. Individual behaviours characterising the patterns varied over time. No significant cross-sectional or prospective associations were observed with adiposity at both time points; however, children displaying the unhealthy pattern had higher adiposity measures than other patterns. CONCLUSION: Three non-identical patterns were identified at 6-8 and 9-11 years. The individual behaviours that characterised patterns (dominant behaviours) at both ages are possible drivers of the patterns obtained and could explain the lack of associations with adiposity. Identifying individual behaviour pattern drivers and strategic intervention are key to maintain and prevent the decline of healthy patterns.

Working together to increase Australian children's liking of vegetables: a position statement by the Vegetable Intake Strategic Alliance (VISA).

Children need to be repeatedly and consistently exposed to a variety of vegetables from an early age to achieve an increase in vegetable intake. A focus on enjoyment and learning to like eating vegetables at an early age is critical to forming favourable lifelong eating habits. Coordinated work is needed to ensure vegetables are available and promoted in a range of settings, using evidence-based initiatives, to create an environment that will support children's acceptance of vegetables. This will help to facilitate increased intake and ultimately realise the associated health benefits. The challenges and evidence base for a new approach are described.

"That's the routine": A qualitative exploration of mealtime screen use in lower educated Australian families with young children.

BACKGROUND: Family meals are an opportune context for initiating healthy eating habits in young children. However, using screens at family mealtimes may negate some of the associated nutritional and social benefits. In High Income countries, frequent mealtime screen use is common, particularly in families of low socioeconomic position (SEP). This study aimed to explore experiences and acceptability of mealtime screen use in families of low SEP with young children. METHODS: Qualitative interviews with 25 mothers of low SEP were conducted via telephone or Zoom™ using Photo Interviewing and a semi-structured interview script. Transcripts were analysed thematically using a Constructivist paradigm. RESULTS: Many parents reported an eagerness for reducing family mealtime screen use. Three major themes were identified in explaining the reasons behind levels of engagement in family mealtime screen use. These included parental self-efficacy, such as parental confidence in saying no to screens at mealtimes, physical resources such as having enough space in the home for a functioning dining table without view of a television, and temporal priorities such as prioritising screen use for managing children's difficult behaviour at mealtimes over long-term health considerations. CONCLUSIONS: This study highlights that although family mealtime screen use is likely linked with a range of child behaviours and parenting practices that may negatively influence children's dietary intake and social engagement, parents often considered screens acceptable at mealtimes. Nonetheless, parents' desire to reduce family mealtime screen use provides an important opportunity to determine how best to support parents to achieve this.

Meal kit subscription services and opportunities to improve family vegetable consumption.

Popular commercial meal kit subscription services (MKSSs) may support families to overcome barriers to cooking and eating at home, and facilitate improved vegetable consumption. The global meal kit market has expanded rapidly creating a gap in our understanding of the health-promoting potential of MKSSs. This paper describes the contemporary MKSS market in Australia and provides a vegetable-specific content analysis of a sample of recipes. A 1-week subscription was purchased for all Australian-based MKSSs (n = 9) and websites were systematically reviewed to document key characteristics and recipe features. Vegetable content of all available recipes within a 1-week period were analysed. Our findings highlight the rapid expansion and evolution of MKSS market offerings over the past decade and their potential to support family vegetable consumption. Across all analysed recipes (n = 179), MKSSs provided a median of 2.5 vegetable serves per person (range 0.7-7.5 serves) and a median of 3 different types of vegetables from 2 vegetable subgroups (i.e. dark green, red and orange, starchy, legumes and all other vegetables). This suggests that MKSSs may support family vegetable consumption if families select recipes with a greater number and variety of vegetables. However, an opportunity remains for MKSSs to improve both vegetable quantity and variety to positively influence population health. Further research is required to describe how families use meal kits promoting a greater understanding of their potential to improve family nutrition.

The influence of household structure and composition on the introduction of solid, semisolid and soft foods among children aged 6-8 months: An analysis based on Ethiopia Demographic and Health Surveys.

The early and late introduction of complementary food, both prevalent in Ethiopia, are associated with morbidities, growth faltering and developmental risks in children. The interhousehold network around the primary caregiver's intrahousehold network is critical in influencing the age of introducing complementary foods. This study examined the influence of household composition and structures on complementary food introduction. This is a secondary data analysis of four Ethiopian Demographic and Health Surveys conducted between 2000 and 2016. The household structure and composition variables were calculated from household members' kinship status and attribute, respectively. The introduction of solid, semisolid or soft foods was dichotomised as whether the children within 6 to 8 months have been given complementary foods. Multivariable logistic regression with adjustment for the primary caregiver and household characteristics was run to examine the associations between household structure and composition variables and the introduction of complementary foods. The marginal effects (ME) were calculated to facilitate the practical interpretation of the study findings. Large households (>3 nonredundant contacts) with extended family or unrelated people (high effective size, ME = 6.01%, 95% confidence interval [CI]: -8.53, -3.49) lowered the proportion of children starting food within the recommended 6-8 months. Households with close kins (high constraint) (ME = 7.22%, 95% CI: -13.65, 28.09) and greater age diversity (ME = 0.65%, 95% CI: 0.15, 1.15) increased the proportion of children receiving complementary food at an appropriate age. This study revealed that interhousehold structure and composition influence the age of introduction of complementary foods. These factors, therefore, need to be considered in designing interventions to improve age at the introduction of complementary foods.

Barriers and enablers to menu planning guideline implementation in Australian childcare centres and the role of government support services.

OBJECTIVE: To explore government support service access, perceived barriers/enablers to menu planning and menu compliance in long day care (LDC) centres in Victoria, Australia, where the Victorian Government-funded Healthy Eating Advisory Service (HEAS) is available to provide free LDC menu planning support. DESIGN: This is a cross-sectional study design. Data were collected from online surveys with the option of uploading 2 weeks of menus and recipes. Menu compliance was scored for quantity, quality and variety. Barriers/enablers to menu planning guideline implementation were determined using the Theoretical Domains Framework (TDF). Independent t tests, one-way ANOVA and chi-square tests assessed relationships between characteristics, barriers/enablers and menu scores. SETTING: Eighty-nine LDC centres that prepare food onsite. PARTICIPANTS: LDC staff responsible for menu planning (n 89) and menus from eighteen centres. RESULTS: Fifty-five per cent of centres had accessed HEAS. Of eighteen provided menus, only one menu was compliant with menu planning guidelines. HEAS access was associated with higher average scores in four of seven TDF domains, namely knowledge/awareness, skills/role, reinforcement/influence and optimism/intent. There were no correlations between menu score and barriers/enablers; however, menu quality scores were higher for those accessing HEAS. CONCLUSIONS: Childcare-specific government support services may be an important public health nutrition strategy and may improve menu planning guideline implementation as well as menu quality; however, this does not necessarily translate into menu compliance. Research should confirm these findings in larger studies to ascertain uptake of these services. Public health efforts should focus on exploring barriers and enablers to uptake of government support services to increase reach and acceptability.

Differences in infant feeding practices between Indian-born mothers and Australian-born mothers living in Australia: a cross-sectional study.

BACKGROUND: Immigrant children from low- and middle-income countries (e.g. India) have higher obesity rates than children from high-income countries (e.g. Australia). Infant feeding practices are a key modifiable risk factor to prevent childhood obesity. This study compared infant feeding practices such as breastfeeding, infant formula feeding, timing of introduction to other liquids and solids of Indian-born versus Australian-born mothers living in Australia. METHODS: Data of children aged between 0-24 months from the 2010-2011 Australian National Infant Feeding Survey were analysed. Infant feeding practices between Indian-born mothers (n = 501) and Australian-born mothers (n = 510) were compared. Multiple regression models with adjustments for covariates, such as maternal demographic factors, were conducted. RESULTS: Compared to infants of Australian-born mothers, infants of Indian-born mothers were breastfed for 2.1 months longer, introduced solids 0.6 months later and water 0.4 months later (p < 0.001). Moreover, infants of Indian-born mothers were 2.7 times more likely to be currently breastfeeding, 70% less likely to currently consume solids and 67% less likely to consume solids before six months (p < 0.001). In contrast, infants of Indian-born mothers were introduced to fruit juice 2.4 months earlier, water-based drinks 2.8 months earlier and cow's milk 2.0 months earlier than infants of Australian-born mothers (p < 0.001). Additionally, infants of Indian-born mothers were 2.7 times more likely to consume fruit juice (p < 0.001) than the infants of Australian-born mothers. CONCLUSION: Significant differences exist in infant feeding practices of Indian-born and Australian-born mothers (some health promoting and some potentially obesogenic). The evidence of early introduction of sweetened fluids in infants of Indian-born mothers provides an opportunity to support parents to delay introduction to promote optimal infant growth..

Mothers as advocates for healthier lifestyle behaviour environments for their children: results from INFANT 3.5-year follow-up.

BACKGROUND: The amount of time children spend outside of their home environment has increased over the past decades. Therefore, the quality of the health behaviour environments where young children spend time is likely to impact their health behaviour opportunities. The aim of this study was to describe the proportion of mothers who consider it possible to make changes in their local communities to increase opportunities for children to eat healthily, be physically active, and limit screen time exposure, as well as the proportion who have attempted to do so. The characteristics of mothers with differing advocacy beliefs and intentions were explored. METHODS: Cross-sectional data collected using questionnaires from 307 mothers who participated in the 3.5-year follow-up of the INFANT cluster-randomized controlled trial were used. Frequencies were used to assess the number of mothers who thought it possible to bring about change in their local communities and for the those who had attempted to do so. Binary logistic regression analyses were used to compare sociodemographic characteristics of mothers with differing responses. RESULTS: Most mothers thought it was possible to bring about change in their local community with regards to providing more opportunities for their child to eat healthily (83.7%), be physically active (90.9%) as well as limit exposure to screen time (63.5%). However, less than 19% and 11% of mothers have thought about or tried to bring about change in their child's childcare centre or local community, respectively. No sociodemographic differences were found between the mothers who thought it was possible to bring about actioning change (p-values > 0.1) or for those that have thought about change (p-values > 0.1). CONCLUSION: As children are continuously being exposed to obesogenic environments future quantitative and qualitative studies are needed to describe how to promote parental advocacy and engagement, in order to provide children with environments that support healthy lifestyle behaviours.

Meal kits in the family setting: Impacts on family dynamics, nutrition, social and mental health.

Families face many barriers in providing nutritious home-cooked family meals. Meal kit subscription services are increasingly popular among families and may address obstacles to cooking at home and facilitate shared family meals. This study aimed to understand why families use meal kits and what they perceived to be the main impacts on family dynamics, nutrition, social and mental health. Sixteen primary meal providers with at least one child 18 years and under living at home, were recruited via social media (e.g., Facebook, Twitter) to participate in a semi-structured interview using Zoom videoconferencing. Interviews were conducted with participants who currently purchased and used commercially available meal kits in Australia (e.g., HelloFresh, Marley Spoon). Thematic analysis of interview transcripts revealed that women, as the primary carers responsible for family meals, primarily reported the role that meal kits played in reducing their mental load through reduced food-related decision making, enhanced family participation in meal preparation, and opportunities for food literacy. Additionally, meal kits were reported to reduce food eaten away-from-home with the majority of participants perceiving meal kits to provide nutritionally dense meals and appropriate portion sizes aligned with National dietary guidelines. This study provides important insights into the potential physical, mental and social health benefits of meal kits in supporting families to cook and eat meals together at home. While meal kits have the capacity to positively influence population health and wellbeing, it is necessary that meal kit subscription services address the nutritional quality of their meals and provide evidence-based nutrition messaging to facilitate improvements in food literacy and nutritional intake.

A thematic cluster analysis of parents' online discussions about fussy eating.

Food fussiness is associated with non-responsive parent feeding practices, such as persuasive and instrumental feeding. Although most children described as 'fussy eaters' are likely exhibiting developmentally typical behaviours, up to half of the parents of children 2-5 years old express concerns. Concern for fussy eating may mediate the use of non-responsive feeding practices and so must be addressed in parent feeding interventions. Therefore, it is critical to better understand parents' concerns and how they may relate to feeding practices. This study aimed to explore how parents' feeding practices and the social cognitive factors that may drive them clustered based on parents' concern for fussy eating. Data were collected from parent discussions of fussy eating on a Reddit forum (80,366 posts). Latent Dirichlet allocation was used to identify discussions of fussy eating. Relevant posts (1542) made by users who identified as a parent of a fussy eater (n = 630) underwent qualitative coding and thematic analysis. Five clusters of parents were identified, ranging in size from 53 to 189 users. These were primarily characterised by parents' degree of concern and feeding practices: (1) High concern, nonresponsive; (2) Concerned, nonresponsive; (3) Low concern, responsive; (4) Low concern, mixed strategies; (5) Low concern, indulgent. Parents who used responsive practices tended to be less concerned for fussy eating, have greater trust in their child's ability to self-regulate hunger, have longer-term feeding goals, and exhibit greater ability for personal self-regulation. Future research should further examine how these constructs may be leveraged in parent feeding interventions.

Infant feeding and growth trajectories in early childhood: the application and comparison of two longitudinal modelling approaches.

BACKGROUND/OBJECTIVES: The role of infant feeding practices in longitudinal growth trajectories in children remains equivocal. This study utilised two longitudinal approaches to examine the associations of infant feeding mode (breastfeeding, mixed feeding, formula feeding), breastfeeding duration, and the timing of solid foods introduction with body mass index (BMI) z-score in early childhood. SUBJECTS/METHODS: Secondary analyses of data from the Healthy Beginnings Trial were conducted. Infant feeding practices were reported by mothers at 6, 12, and 24 months of child age. Child weight and length were measured at birth, 12, 24, 42, and 60 months. Two longitudinal approaches: linear spline multilevel model (LSMM) and group-based trajectory modelling (GBTM) were used to describe BMI z-score trajectories and assess its associations with infant feeding practices. RESULTS: The LSMM approach demonstrated that the breastfeeding group showed lower BMI z-scores from ages 12 to 60 months than the mixed feeding and formula feeding groups. Children who were breastfed for ≥ 6 versus < 6 months exhibited a lower BMI z-score trajectory from ages 12 to 60 months. Results from the GBTM approach revealed that the mixed feeding (OR: 1.83, 95%CI 1.04, 3.21) and the formula feeding group (OR: 2.00, 95%CI 0.67, 5.92) showed a tendency for higher odds of following the "High BMIz" trajectory than the breastfeeding group. Breastfeeding duration ≥6 versus < 6 months was linked with lower odds of following the "High BMIz" trajectory (OR 0.65, 95%CI 0.43, 0.98). Both approaches revealed no evidence of an association between the timing of solid foods introduction and BMI z-score trajectory. CONCLUSIONS: The two longitudinal approaches revealed similar findings that infant feeding mode and breastfeeding duration, but not the timing of solid foods introduction, were associated with BMI z-score trajectory in early childhood. The findings provide robust longitudinal evidence to encourage and support extended breastfeeding for childhood obesity prevention.

Maternal knowledge explains screen time differences 2 and 3.5 years post-intervention in INFANT.

Very few early childhood interventions have observed sustained effects regarding television viewing and none have examined the mechanisms behind sustained intervention effects at long-term follow-ups. Thus, the aim of this study was to investigate potential mechanisms relating to the maintained intervention effect on television viewing at two long-term follow-ups in the Melbourne Infant Feeding Activity and Nutrition Trial (INFANT). INFANT was a cluster-randomised controlled trial. At the 2- and 3.5-year follow-ups, a total of 262 infant/mother pairs had complete information. Television viewing was assessed via a questionnaire at both follow-ups and six potential mediators were measured post-intervention (i.e. 15 months after baseline). Causal mediation analysis was conducted. At the 2- and 3.5-year follow-ups, the positive impacts of INFANT on maternal television viewing knowledge were maintained (B = 0.34 units; 95% confidence interval (CI95): 0.21, 0.48). An indirect effect of the intervention on reducing children's television viewing time was observed at the 2- and 3.5-year follow-ups (B = -11.73 min/day; CI95: -22.26, -3.28 and B = -4.78 min/day; CI95: -9.48, -0.99, respectively) via improved maternal television viewing knowledge.Conclusion: The positive impacts of INFANT on maternal television viewing knowledge were maintained at both follow-ups, with better maternal knowledge associated with less television viewing time in their children. These results have implications for paediatricians and healthcare professionals as educating new parents early on regarding screen time may lead to the development of healthier screen time habits that are sustained through to the pre-school years. What is Known: • Lifestyle behaviours inclusive of screen time have been found to be established before the pre-school years and track. • Few trials have evaluated the long-term mechanisms related to maintained intervention effectiveness. What is New: • This study shows the positive impacts of a low-dose intervention on maternal television viewing knowledge at two long-term follow-ups. • Better maternal television viewing knowledge was associated with less television viewing time in their children.

Variation in outcomes of the Melbourne Infant, Feeding, Activity and Nutrition Trial (INFANT) according to maternal education and age 2 and 3·5 years post-intervention.

OBJECTIVE: This study aimed to assess whether the long-term effectiveness of the Melbourne Infant, Feeding, Activity and Nutrition Trial (INFANT) at 2 and 3·5 years post-intervention varied according to maternal education and age. DESIGN: Two and 3·5 years post-intervention follow-up of the INFANT cluster-randomised controlled trial. Outcomes at both follow-ups included children's BMI z-scores, physical activity (ActiGraph), television viewing (parental report) and dietary intake (3 × 24-h dietary recalls). Dichotomous moderator variables included maternal education (university v. no university) and age (< 32 v. ≥ 32 years). SETTING: Population based. PARTICIPANTS: Families completing the 15-month programme (n 492) were invited to participate in the follow-ups when their child was 3·6 and 5 years old. RESULTS: At the 2-year follow-up, the intervention effects on vegetable (positive) and sweet snack (negative) intake were greater in children with higher educated mothers, whereas water consumption (positive) was greater in children with lower educated mothers. At the 2-year follow-up, the intervention was more effective in increasing water consumption in children with younger mothers and decreasing sweet snack intake in children with older mothers (opposite result observed at the 3·5-year follow-up). At the 3·5-year follow-up, children with younger and older mothers increased and decreased their consumption of savoury snacks, respectively. CONCLUSIONS: Moderation by maternal education and age were observed for some outcomes; however, clear patterns were not evident at both follow-ups, with little consistency across outcomes. This indicates that INFANT was more-or-less equally effective in children irrespective of their mother's education level or age, which is important in community-based interventions.

Nutrition and packaging characteristics of toddler foods and milks in Australia.

OBJECTIVE: To analyse nutritional and packaging characteristics of toddler-specific foods and milks in the Australian retail food environment to identify how such products fit within the Australian Dietary Guidelines (ADG) and the NOVA classification. DESIGN: Cross-sectional retail audit of toddler foods and milks. On-pack product attributes were recorded. Products were categorised as (1) food or milk; (2) snack food or meal and (3) snacks sub-categorised depending on main ingredients. Products were classified as a discretionary or core food as per the ADG and level of processing according to NOVA classification. SETTING: Supermarkets and pharmacies in Australia. RESULTS: A total of 154 foods and thirty-two milks were identified. Eighty percentage of foods were snacks, and 60 % of foods were classified as core foods, while 85 % were ultraprocessed (UP). Per 100 g, discretionary foods provided significantly more energy, protein, total and saturated fat, carbohydrate, total sugar and Na (P < 0·001) than core foods. Total sugars were significantly higher (P < 0·001) and Na significantly lower (P < 0·001) in minimally processed foods than in UP foods. All toddler milks (n 32) were found to have higher energy, carbohydrate and total sugar levels than full-fat cow's milk per 100 ml. Claims and messages were present on 99 % of foods and all milks. CONCLUSIONS: The majority of toddler foods available in Australia are UP snack foods and do not align with the ADG. Toddler milks, despite being UP, do align with the ADG. A strengthened regulatory approach may address this issue.