Children's understanding of food and meals in the foodscape at school

Children come into contact with food in different places and contexts, i.e. ‘foodscapes’. The aim of the paper was to study what knowledge children construct regarding food and meals in the foodscape at school and how they do so, focusing on the school meal context. Observations, interviews and focus group interviews were used. The children appropriated ideas and understandings from the adult world and society as a whole and used it among their peers in the school meal situation. This included the adoption of institutional commensality, the telling of stories about food, and the classification of foods in dichotomies.     

Prevention of childhood poisoning in the home: overview of systematic reviews and a systematic review of primary studies

Unintentional poisoning is a significant child public health problem. This systematic overview of reviews, supplemented with a systematic review of recently published primary studies synthesizes evidence on non-legislative interventions to reduce childhood poisonings in the home with particular reference to interventions that could be implemented by Children's Centres in England or community health or social care services in other high income countries. Thirteen systematic reviews, two meta-analyses and 47 primary studies were identified. The interventions most commonly comprised education, provision of cupboard/drawer locks, and poison control centre (PCC) number stickers. Meta-analyses and primary studies provided evidence that interventions improved poison prevention practices. Twenty eight per cent of studies reporting safe medicine storage (OR from meta-analysis 1.57, 95% CI 1.22–2.02), 23% reporting safe storage of other products (OR from meta-analysis 1.63, 95% CI 1.22–2.17) and 46% reporting availability of PCC numbers (OR from meta-analysis 3.67, 95% CI 1.84–7.33) demonstrated significant effects favouring the intervention group. There was a lack of evidence that interventions reduced poisoning rates. Parents should be provided with poison prevention education, cupboard/drawer locks and emergency contact numbers to use in the event of a poisoning. Further research is required to determine whether improving poison prevention practices reduces poisoning rates.     

Social marketing and big social change: personal social marketing insights from a complex system obesity prevention intervention

ABSTRACT

To address ‘wicked problems’ such as obesity, family violence or community safety, we need systems change interventions that reach large numbers, are scalable and can be enriched over time.

Follow the development of a social marketing platform as it became a critical component of Healthy Together Victoria; an internationally recognised, and radically different, approach to driving change for better health. Working beyond the delivery of public education campaigns, social marketing became a key pillar of this powerful movement – one that emboldened governments, business and other partners across sectors and communities – to tackle the rising tide of obesity through leadership, big thinking and joint action.     

Secondary school tuck shop options and student choices: A cross‐sectional survey

Obesity in children is rapidly becoming a major public health problem in Hong Kong; the prevalence of overweight in children increased from 16.2% to 22.2% between 1998 and 2008. Healthy eating programs and policies exist, but only for primary schools, and students’ eating habits change when they are exposed to the new environment in secondary schools. Therefore, this study examined the relationship between available food in secondary school tuck shops and students’ purchasing preferences. A cross‐sectional survey was conducted from mid‐March to mid‐April 2016 across six secondary schools, using a questionnaire to measure students’ healthy eating knowledge and eating habits and a checklist to explore food options in each school's tuck shop. Linear regression was used to explore the relationship between eating knowledge and eating habits and logistic regression to explore the relationship between available foods at the tuck shops and the children's purchasing preferences. A total of 374 junior secondary students participated in the survey. A weak, positive correlation was found between healthy eating knowledge and healthy eating habits. No association was found between available food at tuck shops and children's purchasing preferences. The results reveal a definite knowledge‐attitude gap where healthy eating is concerned. Despite there being no significant association between the food offerings in tuck shops and students’ measured purchasing preferences (p > .05), 81% of the students stated that they would choose healthy food if offered, illustrating the urgent need to assess the variety and nutritional quality of foods available in secondary school tuck shops.     

肥胖给人体健康带来的危害

通过文献资料法总结肥胖给人带来的生理危害,从而让人们充分认识到肥胖对身体健康的影响,进而引起人们采取措施来控制或预防肥胖飞发生。     

Estimating the effect of early-childhood citizenship on education using policy changes as instruments

This article investigates the effect of early-childhood citizenship status on secondary school education of immigrant offspring. Given the potential endogeneity of naturalization decision, I instrument for citizenship by using a German reform that introduced exogenous variation in the age of naturalization. The reform provides powerful instruments, significantly raising the likelihood of possessing a German passport in childhood. I find that citizenship status increases the probability of attending the highest school track, which gives access to academic education. The effects are of a similar magnitude for boys and girls.     

Socioeconomic Status and Obesity Gradient over Age: New Evidence from China

This paper presents a systematic analysis of the impact of socioeconomic status (SES) on overweight and obesity in China and investigates how and why the SES-obesity gradient differs with age. Using a longitudinal sample drawn from the China Health and Nutrition Survey (CHNS), I find that body mass index (BMI) is positively associated with SES during early childhood but becomes inversely related to childhood SES as children age into adulthood. Estimation results show that children from low SES families are less likely to be overweight or obese than their median and high SES peers. The results from subsamples stratified by living area reveal that the SES gaps of obesity are generally larger for urban residents than rural residents. Females are significantly less likely to be overweight than males in China. The SES during childhood has independent effects after controlling for respondents’ contemporaneous SES. The relationship between the contemporaneous SES of a male adult and his chance of being overweight or obese is significantly positive, while the contemporaneous SES of a female adult is negatively related to her chance of being overweight or obese.     

An empirical analysis on the determinants of overweight and obesity in China

Overweight and obesity in adult populations is considered to be a growing epidemic worldwide, and appears to be rapidly increasing in China. From 1992 to 2002, the incidence of overweight in adults increased by 39.0%, while that of obesity doubled. To identify the determinants of adult overweight and obesity in China, micro-level data from a questionnaire survey entitled the ‘Preference Parameters Study,’ which was conducted by the Global Centers of Excellence programme at Osaka University, were analysed. In addition to the entire sample, data from urban and rural subsamples were also analysed in order to investigate whether the determinants of overweight and obesity differed. The results suggested that body mass index (BMI) is correlated with subjective well-being, gender, age, labour intensity and drinking and eating habits among urban respondents, and with age, monthly income, number of siblings and eating habits among rural respondents.     

Cost effectiveness of rimonabant use in patients at increased cardiometabolic risk: estimates from a Markov model

Summary

Rimonabant, the first selective CB-1 receptor blocker, is expected to reduce cardiometabolic risk substantially. This study assesses the economics of such treatment in patients at elevated cardiometabolic risk.

A Markov model was developed using data from the Rimonabant in Obesity (RIO) trial, published risk equations, and UK cost and utility data. Patients begin either in a diabetic or a non-diabetic state and can transition to cardiovascular disease or to death (based on UK life tables). Transitions to diabetes and subsequent cardiovascular events are also counted. Resource use due to events and long-term management were translated to UK costs (2005 GBP). Tariffs for events and states were applied to age-dependent utilities. Extensive univariate and multivariate probabilistic sensitivity analyses were carried out.

Over 10 years, 8% will suffer a cardiovascular event with a loss of more than 1,000 quality-adjusted life years (QALYs) and a cost of more than £500,000 per 1,000 patients. Projecting risk for a lifetime, 1 year of rimonabant use is estimated to gain >65 QALYs at £8,574/QALY. In probabilistic sensitivity analysis, incremental cost-effectiveness ratios varied from £2,657 to £22,141/QALY.

Based on the metabolic effects seen in clinical trials, rimonabant should reduce cardiovascular risk in obese or overweight people at reasonable cost.     

Formula feeding: Evidence for health,nutrition and early childhood development during the critical first 1000 days from rural China

Infant and young child feeding is crucial to physical and mental development and long-term health. In developing settings, the widespread use of formula raises concerns regarding the growth and development of infants. However, little is known about the role that formula may play in the observed poor infant health, nutrition and development in developing areas. Using a rich panel dataset of 1802 infants aged 6–30 months collected at six months intervals from rural China, we describe the prevalence of formula feeding, identify households that are more likely to use formula, and examine the associations between formula feeding with various dimensions of infant health, nutrition and development outcomes: anthropometric measurements, infant illnesses, cognitive, psychomotor, and socio-emotional development. We found infant formula is widely used in rural China, and it is significantly associated with infant health and nutritional outcomes - formula feeding is associated with a 4.59-point increase in Hemoglobin concentration and a 13% reduction in anemia prevalence, but is also associated with a 0.11-sd decrease in weight-for-age and height-for-age Z-scores. Moreover, infants are more likely to be fed formula when their families have higher socioeconomic status, when their parents have out-migrated, and when they have no siblings. Our findings suggest that there is a need to promote age-appropriate feeding practices, with an emphasis on families who are particularly in need of guidance, to reduce over-reliance on formula, and provide support for mothers to delay their migration or create pathways for rural parents to bring their children with them when they migrate.