A major contributor to the growing obesity crisis is screen based sedentary behaviour among young children. Media parenting practices may be an important determinant of children’s screen time, however published research exploring the influence of parenting practices on children’s screen time has mainly focused on children’s television use and the parenting practices of the mother. This study examined children’s use of mobile media devices (as well as television use) and included the role of fathers in media parenting, allowing a fuller understanding of the role mothers’ and fathers’ media parenting practices play on children’s screen time in the current media environment. Secondary data analysis was conducted using data from 62 children between 1.5 and 5 years of age and their parents (39 mothers, 25 fathers), who were part of the Guelph Family Health Study - phase 2 pilot. Linear regression using generalized estimating equations was used to examine associations between media parenting practices and children’s weekday and weekend screen-time. Mothers’ screen-time modeling, mealtime screen use, and use of screens to control behaviour were positively associated with children’s weekday screen-time. Mothers’ practices of monitoring screen-time and limiting screen-time were inversely associated with children’s weekday screen-time. Fathers’ mealtime screen use was positively associated with children’s weekday screen-time; whereas fathers’ monitoring screen-time and limiting setting were inversely associated with children’s weekday screen-time. Fathers’ modeling and use of screens to control behaviour was not significantly associated with children’s weekday screen time. While most associations were similar for weekend day screen time there were a few differences: Fathers’ use of screens to control behaviour was positively associated with children’s weekend screen-time. Mothers’ and fathers’ modeling and mealtime screen use were not significantly associated with children’s weekend screen time. Mothers’ and fathers’ media parenting practices were associated with children’s screen-time. Interventions aimed at reducing children’s screen-time should address both mothers’ and fathers’ media parenting practices.

An effective behavior change program is the first line of prevention for youth obesity. However, effectiveness in prevention of adolescent obesity requires several approaches, with special attention paid to disordered eating behaviors and psychological support, among other environmental factors. The aim of this systematic review is to compare the impact of two types of obesity prevention programs, inclusive of behavior change components, on weight outcomes. “Energy-balance” studies are aimed at reducing calories from high-energy sources and increasing physical activity (PA) levels, while “shared risk factors for obesity and eating disorders” focus on reducing disordered eating behaviors to promote a positive food and eating relationship. A systematic search of ProQuest, PubMed, PsycInfo, SciELO, and Web of Science identified 8825 articles. Thirty-five studies were included in the review, of which 20 regarded “energy-balance” and 15 “shared risk factors for obesity and eating disorders”. “Energy-balance” studies were unable to support maintenance weight status, diet, and PA. “Shared risk factors for obesity and eating disorders” programs also did not result in significant differences in weight status over time. However, the majority of “shared risk factors for obesity and eating disorders” studies demonstrated reduced body dissatisfaction, dieting, and weight-control behaviors. Research is needed to examine how a shared risk factor approach can address both obesity and eating disorders.

Parents influence their children’s weight-related behaviours through their parenting practices, which are often a focal point of obesity prevention interventions. This study examined associations of maternal concern about their child’s weight, dietary intake, physical activity, and media use with maternal food, physical activity, and media parenting practices. Mothers (n = 310) reported their level of concern regarding their child’s weight and related behaviours and their weight-related parenting practices when their child was 5 years of age as part of the Melbourne Infant Feeding Activity and Nutrition Trial (InFANT) Program. We used linear regression analyses with estimation by generalized estimating equations to examine associations of maternal concern and maternal parenting practices. Slightly more than 60% of mothers reported at least one concern related to their children’s weight or related behaviours. Excessive media use was the most commonly endorsed concern among mothers (45.2%). Compared to mothers who were unconcerned about their child’s weight, mothers who were concerned about their child weighing too much reported higher levels of controlling feeding practices, i.e., restrictive feeding, lower levels of co-participation of physical activity, and higher levels of using media to control child behaviour. Mothers who were concerned their child weighed too little reported higher levels of controlling feeding practices, i.e., restrictive feeding, pressure to eat. Similarly, mothers who were concerned about their child’s eating (eating too much or too little) reported higher levels of controlling feeding practices. Mothers who were concerned about their child using too much media reported higher levels of using media to regulate their child’s behaviour and providing opportunities for their child to use media. Mothers who were concerned about their child’s weight, dietary intake, physical activity and media use reported higher levels of controlling parenting practices, i.e., pressure to eat, and lower levels of health promoting parenting practices, i.e., co-participation in physical activity. Longitudinal research is needed to elucidate temporal order and specific mechanisms of these associations.

Background: Research has shown that body dissatisfaction is higher during the postpartum period compared to other periods of life, and strongly associated with disordered eating behaviours, which can lead to adverse health outcomes. While results from cross-sectional studies suggest that social media may play an important role in body dissatisfaction among postpartum mothers, causal inference is limited due to the observational nature of the existing research. The objective of this study is to experimentally test the effect of body-focused social media on the body dissatisfaction and eating and physical activity intentions, attitudes, and behaviours of postpartum mothers. Methods: Postpartum mothers of infants 0–6 months (n = 132) were randomly assigned to view either body-focused social media posts (n = 65), or a control set of infant feeding tips (n = 67). ANCOVA was used to examine differences between the intervention and control group on levels of body dissatisfaction, eating and physical activity intentions, attitudes, and behaviours. There were two follow-up time points, immediately post intervention and 1-month post intervention to measure potential sustained effects of intervention. Results: Exposure to body-focused social media posts resulted in higher levels of body dissatisfaction, mean difference 1.54 (p = 0.002); poorer body image, mean difference 0.41 (p = 0.007); eating attitudes, mean difference 2.26 (p = 0.025); and higher levels of restrained eating behaviours, mean difference 0.39 (p < 0.001) among the intervention group post intervention. Mothers in the intervention group also reported higher levels of inspiration to be active, mean difference 0.48 (p = 0.021) post intervention. A sustained effect was found for restrained eating, mean difference 2.03 (p < 0.001) and poorer eating attitude, mean difference 0.29 (p = 0.001) at 1-month follow-up. No sustained effects were found for any other outcomes at 1-month follow-up. Conclusion: Social media exposure to body-focused social media posts negatively affect postpartum mothers’ body dissatisfaction and health behaviours. Further experimental research that includes an interactive social media component is needed among this population. Trial Registration: NCT05181280, Study ID Number: 054798. Registered 06/01/2022. Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT05181280.

Stress may influence the parenting practices employed by parents to manage their children’s screen-time. The objective of this study was to examine cross-sectional associations between family stress and media parenting practices. Using the Guelph Family Health Study Pilot 2 cohort, data was collected from 64 parents from 39 families. Linear regression using generalized estimating equations was used to examine associations between family-based stress and screen parenting practices, stratified by mothers and fathers. Models were adjusted for household income, the number of children in the family, child sex, and age. General stress was positively associated with mothers’ use of screen-based devices in front of their child(ren) and negatively associated with mothers’ monitoring and limit-setting. Fathers’ general stress was positively associated with limit-setting. Parenting distress was positively associated with mothers’ modeling screen use. Fathers’ parenting distress was negatively associated with limit-setting and positively associated with mealtime screen use. Household chaos was positively associated with monitoring screen-time for both mothers and fathers and positively associated with fathers’ limit-setting. These results suggest that associations between family stress and media parenting practices differ among mothers and fathers. Programs aimed to reduce children’s screen-time should consider these differences in their messaging to parents.

Background: To create a successful public health initiative that counters vaccine hesitancy and promotes vaccine acceptance, it is essential to gain a strong understanding of the beliefs, attitudes and subjective risk perceptions of the population. Methods: A qualitative analysis of coronavirus disease 2019 (COVID-19) vaccine discourse from 3,731 social media posts on the Twitter and Facebook accounts of six Canadian news organizations was used to identify the perceptions, attitudes, beliefs and intentions of Canadian news organizations’ social media commenters toward taking a COVID-19 vaccine. Results: Four main themes were identified: 1) COVID-19 vaccine safety and efficacy concerns; 2) conspiracy theories stemming from mistrust in government and other organizations; 3) a COVID-19 vaccine is unnecessary because the virus is not dangerous; and 4) trust in COVID-19 vaccines as a safe solution. Based on themes and subthemes, several key communication recommendations were developed for promotion of COVID-19 vaccine acceptance, including infographics championed by Public Health that highlight the benefits of the vaccine for those who have received it, public education about the contents and safety of the vaccine and eliciting an emotional connection through personal stories of those impacted by COVID-19. Conclusion: Specific considerations, such as leveraging the public’s trust in healthcare professionals to act as a liaison between Public Health and the Canadian public to communicate the benefits of the vaccine against COVID-19 and its variants, may help reduce COVID-19 vaccine hesitancy.