Children's physical activity and sedentary behaviour in before school care: An observational study.

OBJECTIVE: In Australia, less than one quarter of children aged 5-12 years meet national physical activity (PA) guidelines. Before school care operates as part of Out of School Hours Care (OSHC) services and provide opportunities for children to meet their daily PA recommendations. The aim of this study was to explore factors associated with children meeting 15 min of moderate-to-vigorous-intensity physical activity (MVPA) while attending before school care. METHODS: A cross-sectional study was conducted in 25 services in New South Wales, Australia. Each service was visited twice between March and June 2021. Staff behaviours and PA type and context were captured using staff interviews and the validated System for Observing Staff Promotion of Physical Activity and Nutrition (SOSPAN) time sampling tool. Child PA data were collected using Actigraph accelerometers and associations between program practices and child MVPA analysed. RESULTS: PA data were analysed for 654 children who spent an average of 39.2% (±17.6) of their time sedentary; 45.4% (±11.4) in light PA; and 14.9% (±11.7) in MVPA. Only 17% of children (n = 112) reached ≥15 min MVPA, with boys more likely to achieve this. Children were more likely to meet this recommendation in services where staff promoted and engaged in PA; PA equipment was available; children were observed in child-led free play; and a written PA policy existed. CONCLUSIONS: Before school care should be supported to improve physical activity promotion practices by offering staff professional development and guidance on PA policy development and implementation practices.

Harnessing citizen science in health promotion: perspectives of policy and practice stakeholders in Australia.

Citizen science is rapidly gaining momentum as a means of involving members of the public in research and decision-making in disease prevention and health promotion. However, citizen science projects have predominantly been led by academic researchers and there is limited understanding of how to support the application of citizen science approaches in policy and practice settings. This study aimed to understand the perceptions, motivations and early experiences of applying citizen science approaches in policy and practice settings. Semi-structured interviews were conducted with policy and practice stakeholders who were leading citizen science projects (project partners, n = 7), and their implementation partners (project implementers, n = 11). Participants viewed citizen science as an opportunity to access hard-to-reach data and to enhance engagement with community members to support policy and practice change. Barriers and facilitators of citizen science in policy and practice settings included navigating collaborative relationships, team capacity and resources available to deliver projects, recruitment and engagement of citizen scientists and ethical considerations in the design and implementation of citizen science projects. Findings support the feasibility and wider application of citizen science approaches in health promotion and are being used to inform the development of tools and resources to build capacity in these approaches in policy and practice settings.

Feasibility, acceptability and potential efficacy of a virtual physical activity program in primary and secondary schools in New South Wales, Australia: A quasi-experimental study.

ISSUE ADDRESSED: Child and youth participation in physical activity (PA) is fundamental for healthy development and obesity prevention. Government policy requires schools to offer 150 minutes of PA each week, however compliance is low. Race around Australia (RAA) is a New South Wales (NSW) Department of Education, virtual PA program aimed at assisting schools in meeting the PA guidelines. METHODS: A pre- and post-intervention, quasi-experimental study was conducted using a mixed-methods approach comprising teacher interviews, a student questionnaire and a 1.6 kilometre (km) timed run. Data were collected from April to September 2021 among students and teachers in Grades 5 to 8, from 10 schools in NSW, Australia. RESULTS: The analytical sample included data from 918 students and 17 teachers. The RAA program was deemed feasible and acceptable in primary schools, whereas there were several systemic and intrapersonal barriers to implementation success for secondary schools. In primary schools, RAA increased PA opportunities and the 1.6 km timed runs revealed a statistically significant treatment by time effect in favour of the intervention group for cardiorespiratory fitness (-36.91 seconds, 95% CI [-63.14, -10.68], P = .006). CONCLUSIONS: RAA has demonstrated feasibility and potential efficacy in improving cardiorespiratory fitness. We recommend that program refinement be made to deliver an intervention that addresses the unique barriers of the secondary school setting through a multi-level ecological approach. SO WHAT?: Despite evident benefits, implementation of PA initiatives in the school setting reveals many challenges. Stronger consideration of the Health Promotion with Schools Framework is evidently needed.

Correlates of physical activity and sedentary behaviour in children attending before and after school care: a systematic review.

BACKGROUND: Out of School Hours Care (OSHC) offers structured care to elementary/primary-aged children before and after school, and during school holidays. The promotion of physical activity in OSHC is important for childhood obesity prevention. The aim of this systematic review was to identify correlates of objectively measured physical activity and sedentary behaviour in before and after school care. METHODS: A systematic search was conducted in Scopus, ERIC, MEDLINE (EBSCO), PsycINFO and Web of Science databases up to December 2021. Study inclusion criteria were: written in English; from a peer-reviewed journal; data from a centre-based before and/or after school care service; children with a mean age < 13 years; an objective measure of physical activity or sedentary behaviour; reported correlations and significance levels; and if an intervention study design these correlates were reported at baseline. Study quality was assessed using the Office of Health Assessment and Translation Risk of Bias Rating Tool for Human and Animal Studies. The PRISMA guidelines informed the reporting, and data were synthesised according to shared correlations and a social ecological framework. RESULTS: Database searches identified 4559 papers, with 18 cross-sectional studies meeting the inclusion criteria.There were a total of 116 physical activity correlates and 64 sedentary behaviour correlates identified. The most frequently reported correlates of physical activity were child sex (males more active), staff engaging in physical activity, an absence of elimination games, and scheduling physical activity in daily programming (all more positively associated). The most frequently reported correlates of sedentary behaviour were child sex (females more sedentary) and age (older children more sedentary). CONCLUSIONS: Encouraging physical activity engagement of female children, promoting positive staff behaviours, removing elimination elements from games, and scheduling more time for physical activity should be priorities for service providers. Additional research is needed in before school care services.

Foods and beverages provided in out of school hours care services: an observational study.

INTRODUCTION: Out of school hours care (OSHC) is a fast-growing childcare setting in Australia, however the types of foods and beverages offered are relatively unknown. This study describes the food and beverages offered and investigates sector-level and setting-level factors which may impact OSHC in meeting the Australian Dietary Guidelines (ADG). METHODS: This cross-sectional, observational study was conducted in 89 OSHC services (between 2018 and 2019). Food and beverages offered, kitchen facilities and menus were captured via direct observation. Foods were categorised into five food groups or discretionary foods, based on the ADG, and frequencies determined. Short interviews with OSHC directors ascertained healthy eating policies, staff training, food quality assessment methods and food budgets. Fisher's exact test explored the influence of sector-level and setting-level factors on food provision behaviours. RESULTS: Discretionary foods (1.5 ± 0.68) were offered more frequently than vegetables (0.82 ± 0.80) (p < .001), dairy (0.97 ± 0.81) (p = .013) and lean meats (0.22 ± 0.54) (p < .001). OSHC associated with long day care and reported using valid food quality assessment methods offered more lean meats (p= .002, and p= .004). Larger organisations offered more vegetables (p = .015) and discretionary foods (p= .007). Menus with clearly worded instructions to provide fruits and vegetables daily offered more fruit (p= .009), vegetables (p < .001) and whole grains (p= .003). No other sector or setting-level factors were associated with services aligning with the ADG. CONCLUSION: Future interventions could benefit from trialling menu planning training and tools to assist OSHC services in NSW meet the ADG requirements.

Using citizen science to engage the public in monitoring workplace breastfeeding support in Australia.

ISSUE ADDRESSED: Returning to work is a major barrier to continued breastfeeding. While many large organisations in Australia have policies to support breastfeeding and expressing at work, it is not known how these are implemented in practice, what support is available in smaller workplaces or to what extent workplace support meets the needs of breastfeeding mothers. METHODS: This pilot study trialled a citizen science approach where members of the public provided photographs and descriptions of breastfeeding facilities and support within their workplaces. The study was promoted through community networks and social media, and data were submitted via an online survey. Data were analysed inductively to identify key themes. RESULTS: Thirty-seven participants provided data on breastfeeding support in their workplace. Three key themes were identified: physical features and facilities; workplace culture; and organisational and occupational characteristics. There was considerable variation in workplace support and around half of the participants indicated that they had to use communal, poorly equipped and/or unhygienic spaces to breastfeed or express at work. CONCLUSION: While some employers have taken important steps towards supporting mothers to combine breastfeeding and work, there is room for improvement. Through this pilot study, we have demonstrated the feasibility and value of using a citizen science approach to obtain data from a range of workplaces along with perceptions of workplace characteristics that support or hinder breastfeeding and expressing at work. SO WHAT?: Citizen science is a useful approach to capturing data on workplace support for breastfeeding and could be scaled up to enable ongoing monitoring. The findings raise important issues around the interpretation and implementation of current legislation to support mothers in the workplace.

Physical activity in out of school hours care: an observational study.

BACKGROUND: Opportunities for physical activity within out of school hours care (OSHC) are not well documented in Australia. This study explored factors associated with children (5-12 years) meeting 30 min of moderate to vigorous physical activity (MVPA) while attending OSHC in the afternoon period. METHODS: A cross-sectional study, conducted in 89 OSHC services in New South Wales, Australia, serving 4,408 children. Each service was visited twice between 2018-2019. Physical activity promotion practices were captured via short interviews and System for Observing Staff Promotion of Physical Activity and Nutrition (SOSPAN). Physical activity spaces was measured (m2) and physical activity of 3,614 child days (42% girls), were collected using Acti-Graph accelerometers. Association between program practices and children accumulation of MVPA was tested using mixed effects logistic regression, adjusted by OSHC service and child. RESULTS: Twenty-six percent of children (n = 925) accumulated 30 min or more of MVPA. Factors associated with children reaching MVPA recommendations included: services scheduling greater amounts of child-led free play, both 30-59 min (OR 2.6, 95%CI 1.70, 3.98) and ≥ 60 min (OR 6.4, 95%CI 3.90, 10.49); opportunities for staff-led organised play of ≥ 30 min (OR 2.3, 95%CI 1.47, 3.83); and active games that engaged the majority of children (OR 1.7, 95%CI 1.11, 2.61). Children were less likely to meet MVPA recommendations if services played games with elimination components (OR 0.56, 95%CI 0.37, 0.86). CONCLUSION: Improvements to service-level physical activity promotion practices, specifically the type of physical activity scheduled and the structure of games, may be an effective strategy to increase MVPA of children attending OSHC afterschool in NSW, Australia.

Foods provided to children in family day care: an observational study.

OBJECTIVE: To assess the quality and quantity of foods and beverages provided to children aged 0-5 years in family day care and identify structural and sociodemographic factors associated with the nutritional quality of food provided. DESIGN: A cross-sectional study measured the food and beverages provided to children using weighed food records. The number of serves from different food groups was calculated according to the Australian Guide to Healthy Eating, and a healthy food provision index score was created. Associations between structural and sociodemographic factors and healthy food provision index scores were analysed using linear mixed models. SETTING: Family day care services in two large geographic areas in New South Wales, Australia. PARTICIPANTS: One hundred and four children in thirty-three family day care services. RESULTS: During attendance at childcare, most children met recommended servings of fruit but not dairy, vegetables, lean meat and meat alternatives and wholegrains. Discretionary foods exceeded recommendations. Children's age, socio-economic status and the type of main meal provided were significantly associated with the healthy food provision index score. CONCLUSIONS: Foods provided to children in family day care are aligned with dietary recommendations for fruit but not vegetables, dairy, lean meat and meat alternatives, wholegrains or discretionary foods. Interventions to promote healthy eating are needed to support families and educators to improve the nutritional quality of food provided to children.

Tracking implementation within a community-led whole of system approach to address childhood overweight and obesity in south west Sydney, Australia.

BACKGROUND: Obesity is a chronic disease that contributes to additional comorbidities including diabetes, kidney disease and several cancers. Change4Campbelltown implemented a 'whole of system' approach to address childhood overweight and obesity. We present methods to track implementation and stakeholder engagement in Change4Campbelltown. METHODS: Change4Campbelltown aimed to build capacity among key leaders and the broader community to apply techniques from systems thinking to develop community-led actions that address childhood obesity. Change4Campbelltown comprised development of a stakeholder-informed Causal Loop Diagram (CLD) and locally-tailored action plan, formation of key stakeholder and community working groups to prioritise and implement actions, and continuous monitoring of intervention actions. Implementation data included an action register, stakeholder engagement database and key engagement activities and were collected quarterly by the project management team over 2 years of reporting. RESULTS: Engagement activities increased level of community engagement amongst key leaders, the school-sector and community members. Community-led action increased as engagement increased and this action is mapped directly to the primary point of influence on the CLD. As action spread diversified across the CLD, the geographical spread of action within the community increased. CONCLUSIONS: This paper provides a pragmatic example of the methods used to track implementation of complex interventions that are addressing childhood overweight and obesity.

Campbelltown - Changing our Future: study protocol for a whole of system approach to childhood obesity in South Western Sydney.

BACKGROUND: In Australia, around 67% of adults and 25% of children (5-17 years) are currently overweight or obese (Australian Bureau of Statistics, 4364.0.55.001 - National Health Survey: First Results, 2017-18, 2018). The Campbelltown - Changing our Future study will translate 'a whole of system' approach, previously trialed in rural communities in Victoria and the Australian Capital Territoty, to Campbelltown Local Government Area (LGA), a socioeconomically and ethnically diverse urban community in south western Sydney, NSW. METHODS: The study intervention will use a five-step approach; 1 - set up a childhood obesity monitoring system by collecting baseline data from children in primary schools across Campbelltown LGA to give a local context to the community when developing the systems map; 2 - key stakeholders develop systems maps which inform the development of the interventions; 3 - key stakeholders and community groups identify priority areas for action and form working groups; 4 - implementation of the interventions; 5 - evaluation of the interventions. The study will adopt a longitudinal pre/post design with repeated measures at baseline, 2 years and 4 years. Both qualitative and quantitative methods will be used to collect and analyse the data. DISCUSSION: Addressing childhood overweight and obesity is complex and requires a multifaceted intervention. This approach has the capacity to impact a range of factors that influence childhood overweight and obesity utilising existing capacity of multiple partners with broad community reach. Findings will develop local responses which capture the complexity of obesity at a community level and further our understanding of the interrelationships and relative importance of local factors impacting childhood overweight and obesity. This study aims to provide evidence for systems methods and approaches suitable for adaption and scaling and may provide evidence of successful community intervention elements.

Assessment of Feeding Practices and Mealtime Environments in Australian Family Daycare Services.

OBJECTIVE: Assess educators' feeding practices and mealtime environments in family daycare services and examine the factors associated with educators' feeding practices and mealtime environments. METHODS: Cross-sectional observational study of family daycare services (n = 33) in Australia. Best practices for mealtime environments and educator feeding practices were assessed during each mealtime using the Environment Policy Assessment and Observation instrument. Correlates assessed via survey included: socioeconomic status, main language spoken at home, early childhood career experience, and nutrition professional development. Descriptive statistics and independent t tests were calculated. RESULTS: Educators typically had higher scores, indicating better practices, for (the absence of) negative practices compared with positive practices. The only positive practice meeting best-practice standards was educators sitting with children during the meal. There were no significant correlations for educators' feeding practices or mealtime environment. CONCLUSIONS AND IMPLICATIONS: Educators may benefit from professional development targeting positive feeding practices and supportive mealtime environments.

Demographic Predictors of Mothers' Willingness to Vaccinate Young Children Against COVID-19, Get Tested and Isolate: A Cross-Sectional Survey Before and During the Greater Sydney Lockdown 2021, Australia.

Background and Objectives: Having a COVID-19 vaccination, getting tested, and self-isolating if symptomatic are some of the most important mitigation strategies for preventing the spread of COVID-19. This study aimed to investigate whether demographic factors are associated with mothers' willingness to vaccinate their 4-year-old children against COVID-19 if a suitable vaccine becomes available or to get tested and self-isolate if they themselves have COVID-19 symptoms and whether the willingness could be influenced by the Greater Sydney lockdown 2021. Methods: A cross-sectional telephone survey was conducted between 24th February and 26th October 2021. Questions from the NSW Adult Population Health Survey and from previously published studies were used to assess family demographics, mothers' willingness to vaccinate their young children, and willingness to get tested and self-isolate if symptomatic. The survey involved 604 mothers of children aged 4 years who participated in an existing trial in Sydney, Australia. Results: Mothers were more willing to vaccinate their children when the child's father had a tertiary education or higher, with an adjusted odds ratio (AOR) of 2.60 (95% CI 1.67-4.04). Mothers who were older than 30 years or who completed the survey during the lockdown were more willing to get tested if symptomatic, with AOR 2.50 (95% CI 1.17-5.36) and AOR 3.36 (95% CI 1.41-8.02), respectively. Mothers who were married or had de-facto partners were more willing to self-isolate if symptomatic [AOR 17.15 (95% CI 3.56-82.65)]. Conclusion: Fathers' educational level, mothers' age, and marital status were associated with mothers' willingness to vaccinate their young children if a suitable vaccine were available, to get tested, and self-isolate if symptomatic respectively. The promotion of mitigation strategies for tackling the COVID-19 pandemic needs to take into account specific family demographics.

Healthy eating and physical activity environments in out-of-school hours care: an observational study protocol.

INTRODUCTION: Childcare settings have been widely identified as important venues for promoting healthy lifestyles to children. Out-of-school hours care (OSHC) is a rapidly growing childcare service, yet there has been limited research reported on healthy eating and physical activity (HEPA) environments within the Australian OSHC setting. This research aims to describe the HEPA environments related to foods and beverages served, staff behaviours and child physical activity levels across two local health districts within New South Wales, Australia. This study will provide evidence to support future interventions and policies in Australian OSHC settings. METHODS AND ANALYSIS: A cross-sectional study design will be used to describe the food and beverages provided and child activity levels, and report on environmental correlates. OSHC programmes will be visited on non-consecutive weekdays between 2018 and 2020. The frequency of foods and beverages offered will be observed and categorised into food groups aligned to the Australian Dietary Guidelines. Children's physical activity will be measured using ActiGraph wGT3X-BT accelerometers. Staff behaviour will be captured via direct observation and the System for Observing Staff Promotion of Activity and Nutrition. Short interviews with programme directors will gather contextual information about OSHC practices and policies. ETHICS AND DISSEMINATION: Findings will be disseminated through peer-reviewed scientific journals, conference presentations and individualised feedback to each participating service. Ethical approval was granted by the University of Wollongong Human Research Ethics Committee (HE17/490).

Understanding, comparing and learning from the four EPOCH early childhood obesity prevention interventions: A multi-methods study.

BACKGROUND: Childhood obesity is a global problem. Early obesity prevention interventions are complex and differ in effectiveness. Novel frameworks, taxonomies and experience from the Early Prevention of Obesity in CHildren (EPOCH) trials were applied to unpack interventions. OBJECTIVES: Deconstruct interventions into their components (target behaviours, delivery features and behaviour change techniques [BCTs]). Identify lessons learned and future recommendations for intervention planning, delivery, evaluation and implementation. METHODS: This multi-methods study deconstructed the four EPOCH interventions into target behaviours, delivery features and BCTs from unpublished and published materials using systematic frameworks. Additionally, semi-structured interviews were conducted with intervention facilitators and principal investigators. RESULTS: Each trial targeted between 10 and 14 obesity-related behaviours. Key variations in delivery features related to intensity, delivery mode and tailoring. BCTs consistently used across trials included goal-setting, social support, shaping knowledge, role-modelling and credible source. Recommendations from interview analyses include the importance of stakeholder collaboration and consideration of implementation throughout the study process. CONCLUSIONS: The combination of frameworks, methodologies and interviews used in this study is a major step towards understanding complex early obesity prevention interventions. Future work will link systematic intervention deconstruction with quantitative models to identify which intervention components are most effective and for whom.

Cross-sectional study protocol for the Arabic Healthy Weight Project promoting active living and healthy eating among Arabic-speaking communities in South Western Sydney.

INTRODUCTION: The South Western Sydney Local Health District (SWSLHD) is home to nearly 75 000 Arabic-speaking people. Of these, nearly three quarters are overweight or obese and suffer from a range of chronic diseases. To address this, the Health Promotion Service of SWSLHD will conduct a community-based overweight and obesity prevention intervention (Arabic Healthy Weight Project, 2018-2021) with Arabic community members aged between 18 and 50 years. The intervention's main activities will include a comprehensive social marketing campaign and an 'Eat-Move-Live Healthy' programme. METHODS AND ANALYSIS: The project will be evaluated using a pre-postintervention study design to measure changes in practices in relation to physical activity, consumption of vegetables and intake of sugar-sweetened beverages. The evaluation will apply mixed data collection methods. The quantitative data will be collected using a face-to-face survey of 1540 participants from two independent samples (pre: 770 and post: 770). Descriptive and inferential statistical tests will be used to analyse the quantitative data. The qualitative component will use focus group discussions and interviews to evaluate the formative, process and follow-up phases of data collection. A combination of deductive and inductive methods of data analysis will be conducted using NVivo software. ETHICS AND DISSEMINATION: The protocol has been approved by the Human Research Ethics Committee of SWSLHD (HREC/16/LPOOL/303). Findings will be published in peer-reviewed journals.

Early intervention of multiple home visits to prevent childhood obesity in a disadvantaged population: a home-based randomised controlled trial (Healthy Beginnings Trial).

BACKGROUND: Studies have shown that a proportion of children as young as two years are already overweight. This indicates that obesity prevention programs that commence as early as possible and are family-focused are needed. This Healthy Beginnings Trial aims to determine the efficacy of a community-based randomized controlled trial (RCT) of a home visiting intervention in preventing the early onset of childhood overweight and obesity. The intervention will be conducted over the first two years of life to increase healthy feeding behaviours and physical activity, decrease physical inactivity, enhance parent-child interaction, and hence reduce overweight and obesity among children at 2 and 5 years of age in the most socially and economically disadvantaged areas of Sydney, Australia. METHODS/DESIGN: This RCT will be conducted with a consecutive sample of 782 first time mothers with their newborn children. Pregnant women who are expecting their first child, and who are between weeks 24 and 34 of their pregnancy, will be invited to participate in the trial at the antenatal clinic. Informed consent will be obtained and participants will then be randomly allocated to the intervention or the control group. The allocation will be concealed by sequentially numbered, sealed opaque envelopes containing a computer generated random number. The intervention comprises eight home visits from a specially trained community nurse over two years and pro-active telephone support between the visits. Main outcomes include a) duration of breastfeeding measured at 6 and 12 months, b) introduction of solids measured at 4 and 6 months, c) nutrition, physical activity and television viewing measured at 24 months, and d) overweight/obesity status at age 2 and 5 years. DISCUSSION: The results of this trial will ascertain whether the home based early intervention is effective in preventing the early onset of childhood overweight and obesity. If proved to be effective, it will result in a series of recommendations for policy and practical methods for promoting healthy feeding and physical activity of children in the first two years of life with particular application to families who are socially and economically disadvantaged.

Healthy Beginnings Trial Phase 2 study: follow-up and cost-effectiveness analysis.

BACKGROUND: In 2007, we commenced the Healthy Beginnings Trial (HBT) Phase 1 study, which is the first randomised controlled trial (RCT) to test the effectiveness of an early childhood obesity intervention in children aged up to 2 years. The results were promising with significant improvements in infant feeding practices and a lower mean body mass index (BMI). The aims of this proposed Phase 2 study are to determine if the early intervention will lead to a lower mean BMI, lower screen time, improved dietary behaviours and demonstrated cost-effectiveness of the intervention, in children aged 3½ and 5 years. METHODS/DESIGN: In Phase 1 of HBT 667 families participated in the RCT. No further intervention will be carried out in HBT Phase 2. In this study the intervention and control groups will be compared for children's outcomes at ages 3½ and 5 years. Primary outcome measures will be 1) BMI, 2) selected dietary measures using a validated survey tool, and 3) physical activity and screen time using a new generation of tri-axial accelerometers. Intention to treat principles will be used in the analysis. Multiple imputation will be used to impute outcomes for subjects lost to follow-up. A cost-effectiveness analysis (CEA) and cost-utility analysis for both HBT Phase 1 and 2 will also be conducted. DISCUSSION: This is the first time that a home-based early intervention strategy has been implemented to prevent the development of childhood obesity and obesity-conducive behaviours. The results of this trial will ascertain whether early intervention during the first 2 years of life is effective and cost-effective in preventing childhood overweight and obesity at 3½ and 5 years old.

Effectiveness of home based early intervention on children's BMI at age 2: randomised controlled trial.

OBJECTIVE: To assess the effectiveness of a home based early intervention on children's body mass index (BMI) at age 2. DESIGN: Randomised controlled trial. SETTING: The Healthy Beginnings Trial was conducted in socially and economically disadvantaged areas of Sydney, Australia, during 2007-10. PARTICIPANTS: 667 first time mothers and their infants. INTERVENTION: Eight home visits from specially trained community nurses delivering a staged home based intervention, one in the antenatal period, and seven at 1, 3, 5, 9, 12, 18 and 24 months after birth. Timing of the visits was designed to coincide with early childhood developmental milestones. MAIN OUTCOME MEASURES: The primary outcome was children's BMI (the healthy BMI ranges for children aged 2 are 14.12-18.41 for boys and 13.90-18.02 for girls). Secondary outcomes included infant feeding practices and TV viewing time when children were aged 2, according to a modified research protocol. The data collectors and data entry staff were blinded to treatment allocation, but the participating mothers were not blinded. RESULTS: 497 mothers and their children (75%) completed the trial. An intention to treat analysis in all 667 participants recruited, and multiple imputation of BMI for the 170 lost to follow-up and the 14 missing, showed that mean BMI was significantly lower in the intervention group (16.53) than in the control group (16.82), with a difference of 0.29 (95% confidence interval -0.55 to -0.02; P=0.04). CONCLUSIONS: The home based early intervention delivered by trained community nurses was effective in reducing mean BMI for children at age 2. TRIAL REGISTRATION: Australian Clinical Trial Registry No 12607000168459.