Dataset Information

Association between convenience stores near schools and obesity among school-aged children in Beijing, China.

ABSTRACT: BACKGROUND:Food environments have rapidly changed over the past years in China and children have more access to unhealthy food in convenience stores near schools. Since the studies on the association between convenience stores near schools and obesity had inconsistent results and no similar study in China, we conducted a study on the association in Beijing of China, which will provide scientific evidence for the intervention of childhood obesity. METHODS:The study included 2201 students at grade 4 of 37 primary schools in Dongcheng or Miyun district of Beijing. The food environment data was acquired from AMAP, the free web-based geospatial service provider. The numbers of convenience stores were captured within the 800-m network buffer near schools using Geographic Information System. The weight and height of each student were measured by trained health professionals. Students' dietary and physical behaviors and other information associated with obesity were collected with questionnaires for students and their parents. The generalized linear mixed model (GLMM) was used to analyze the data. RESULTS:The average age of the students was 10.2?years (Standard Deviation (SD)?=?0.33). The prevalence of obesity in students was 14.9%. The median number of convenience stores within the 800-m network buffer near schools was 24 in two districts. The number of convenience stores near each school varied from 5 to 67 (median: 25) in Dongcheng district and from 1 to 57 (median: 22) in Miyun district. After adjusting for the confounding factors at the family and individual levels, the association between convenience stores and childhood obesity was statistically significant. Additional ten convenience stores near schools were associated with an increased risk of obesity (Odds Ratio (OR)?=?1.13, 95% confidence interval (CI): 1.03,1.24, P?=?0.011). Compared with less than 24 convenience stores near schools, the students with more than or equal to 24 convenience stores near schools had an increased risk of obesity (OR?=?1.49, 95% CI: 1.09, 2.03, P?=?0.013). CONCLUSION:The students with more convenience stores near their schools had an increased risk of obesity. The findings provided evidence for developing public health policy to restrict the number of convenience stores near schools to prevent and control childhood obesity.

SUBMITTER: Zhou S

PROVIDER: S-EPMC6995088 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Association between convenience stores near schools and obesity among school-aged children in Beijing, China.

Zhou Shuang S Cheng Yu Y Cheng Lan L Wang Di D Li Qin Q Liu Zheng Z Wang Hai-Jun HJ

BMC public health 20200131 1

<h4>Background</h4>Food environments have rapidly changed over the past years in China and children have more access to unhealthy food in convenience stores near schools. Since the studies on the association between convenience stores near schools and obesity had inconsistent results and no similar study in China, we conducted a study on the association in Beijing of China, which will provide scientific evidence for the intervention of childhood obesity.<h4>Methods</h4>The study included 2201 st ...[more]

PMID: 32005214

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Project description:ObjectiveWe aimed to investigate the associations between school-level characteristics and obesity among Chinese primary school children with consideration of individual-level characteristics.DesignThis cross-sectional study was conducted in 2015/2016. School-level characteristics were assessed using an interviewer-administered school questionnaire, and a 'school-based obesity prevention index' was further developed. Individual-level characteristics were collected by self-administered questionnaires. Objectively measured height and weight of students were collected, and obesity status was classified according to the International Obesity Task Force criteria for Asian children. Generalised linear mixed models were used to estimate the associations among the school- and individual-level characteristics and obesity of students.SettingThirty-seven primary schools from an urban and a rural district of Beijing, China.ParticipantsSchool staffs, 2201 students and their parents.ResultsThe school-based obesity prevention index involved the number of health professionals, availability of students' health records, monitoring students' nutrition status, frequency of health education activities, reporting achievements of obesity prevention activities to parents, duration of physical activity during school time and availability of playground equipment. The prevalence of obesity was lower in schools with the higher index value compared with that in schools with the lower index value (OR 0·56; 95 % CI 0·40, 0·79). Some individual-level characteristics were negatively associated with childhood obesity: liking sports, duration of screen time ≤2 h/d, perceived lower eating speed, parental non-overweight/obesity.ConclusionsIrrespective of individual-level characteristics, the specific school-level characteristics had a cumulative effect on obesity among Chinese primary school children. Further school-based obesity intervention should consider these characteristics simultaneously.

Project description:IntroductionAlthough the FDA prohibits using inaccurate, reduced-risk descriptors on tobacco product advertising, descriptors that imply reduced risk or an enhanced user experience may be present on cigar product advertising in retail outlets near schools. Therefore, to inform the development of federal labeling and advertising requirements that reduce youth appeal of cigars, we conducted a content analysis of cigar ads in retailers near schools to document the presence of implied health claims and other selling propositions that may convey enhanced smoking experience.Aims and methodsUp to four interior and exterior little cigar and cigarillo advertisements were photographed in a random sample of licensed tobacco retailers (n = 530) near California middle and high schools. Unique ads (n = 234) were coded for brand, flavor, and presence of implicit health claims, premium branding descriptors, and sensory descriptors. Logistic regressions assessed the association among flavored ads and presence of implicit health claims, premium branding, or sensory descriptors.ResultsSeventeen cigar brands were advertised near schools; Black & Mild (20.1%) and Swisher Sweets (20.1%) were most common. Flavor was featured in 64.5% of ads, with explicit flavor names (eg, grape) being more prevalent than ambiguous names (eg, Jazz) (49.6% vs. 34.2%). Compared to ads without flavors, ads with ambiguous flavors were more likely to feature implicit health claims (OR = 1.83, 95% CI = 1.06% to 3.19%) and sensory descriptors (OR = 2.64, 95% CI = 1.39% to 5.04%); ads with explicit flavors were more likely to feature premium branding (OR = 2.84, 95% CI = 1.53% to 5.41%).ConclusionsCigar ads that featured implicit health claims and premium branding, and sensory selling propositions are present at retailer stores near schools.ImplicationsWe document the presence of implied health claims, premium branding, and sensory descriptors on cigar ads found in retail settings near schools. This study adds to the body of evidence that supports the development of federal labeling and advertising requirements for cigar products to reduce their appeal among vulnerable groups.

Project description:Background:Every student has the potential to do well in school. Failing to provide good nutrition puts them at risk for missing out on meeting that potential and leads to long-term irreversible damage to cognitive development. However, taking action today to provide healthier choices in schools can help set students up for a successful future full of possibilities. So, this study is aimed at assessing the effect of nutritional status on academic performance of school-aged children. Methods:A school-based cross-sectional study was conducted from Feb 05- March 30, 2017 in Lalibela town. A total of 505 primary school students were included in the study. The child anthropometric measures were calculated using AnthroPlus software version 1.0.4 WHO 2007 standards. Bivariable and multivariable ordinal logistic regression were fitted. The proportional odds ratio (POR) with a 95% CI and P value < 0.05 were considered statistically significant. Results:The overall prevalence of stunting, underweight, and thinness was 29.5%, 35.7%, and 29.5%, respectively. In this study, 14.7% of the study participants had low academic achievement in the semester. The multivariable analysis showed that rural residence (POR = 0.39; 95% CI: (0.21, 0.75)), not studying regularly (POR = 0.49; 95% CI: (0.29, 0.82)), severe underweight (POR = 0.25; 95% CI: (0.09, 0.71)), and severe stunting (POR = 0.03; 95% CI: (0.01, 0.37)) were associated with decreased odds of high average semester score achievement of school-aged children. Additionally, higher maternal educational status (POR = 2.12; 95% CI: (1.10, 4.07)) and family income from 550 to 2999 ETB (POR = 1.71; 95% CI: (1.04, 2.81)) were associated with increased odds of high semester average score achievement. Conclusion:Nearly one-third of school-aged children in Lalibela town were stunted, thin, and underweight. Rural place of residence, not studying regularly study, underweight, and stunting were associated with decreased academic achievement. While, family monthly income from 550 to 2999 ETB and higher maternal education status were associated with increased academic achievement.

Dataset Information

Association between convenience stores near schools and obesity among school-aged children in Beijing, China.

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Association between convenience stores near schools and obesity among school-aged children in Beijing, China.

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