Dataset Information

Subjective Household Economic Status and Obesity in Toddlers: A Cross-Sectional Study of Daycare Centers in Japan.

ABSTRACT:

Background

Although lower household economic status is known to be a risk factor for obesity among school-age children, such an association among toddlers remains unclear. The present study investigated the association between household economic status and obesity in toddlers.

Design

We conducted a cross-sectional study of children aged 4 years attending daycare centers in Japan. Information on subjective household economic status ["affluent", "neither", "less affluent", or "non-affluent"] was collected via questionnaire from the children's guardians in 2015. Based on measured values of height and weight, obesity was defined using the International Obesity Task Force cut-offs of overweight (BMI ≥17.47 for boys and ≥17.19 for girls). We used the logistic regression model to investigate the association between household economic status and obesity.

Results

Among 1,848 respondents, the prevalence of obesity was 6.8%. Non-affluent household economic status was associated with a significantly higher probability of obesity in toddlers; the multivariate adjusted odds ratio for "non-affluent" households was 2.31 (95% confidence interval, 1.23-4.33) compared with "affluent" households.

Conclusion

Perception of non-affluent economic status by the guardian was associated with a higher probability of toddler obesity. This result suggests that non-affluent household economic status is associated with obesity in toddlers.

SUBMITTER: Tomata Y

PROVIDER: S-EPMC6290275 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Subjective Household Economic Status and Obesity in Toddlers: A Cross-Sectional Study of Daycare Centers in Japan.

Tomata Yasutake Y Tanno Kumiko K Zhang Shu S Sakai Michiko M Kobayashi Kaori K Kurasawa Noriko N Tanaka Miki M Kamada Yuka Y Tsuji Ichiro I Hiramoto Fukuko F

Journal of epidemiology 20180609 1

<h4>Background</h4>Although lower household economic status is known to be a risk factor for obesity among school-age children, such an association among toddlers remains unclear. The present study investigated the association between household economic status and obesity in toddlers.<h4>Design</h4>We conducted a cross-sectional study of children aged 4 years attending daycare centers in Japan. Information on subjective household economic status ["affluent", "neither", "less affluent", or "non-a ...[more]

PMID: 29887543

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Project description:BackgroundDue to a pattern known as Marginalization-related Diminished Returns (MDRs), historically oppressed non-Hispanic Black Americans show weaker effects of economic status on health and development, when compared to socially privileged non-Hispanic White Americans. Such MDRs are also documented for the effects of economic status on the school performance of non-Hispanic Black children. However, the existing knowledge is minimal on similar diminished returns on children's intelligence.AimTo compare racial and ethnic groups for the effect of subjective economic status on children's cognitive performance, we compared non-Hispanic White and non-Hispanic Black children for the effects of subjective economic status on children's matrix reasoning.MethodsThis cross-sectional study included 7898 children from the Adolescent Brain Cognitive Development (ABCD) study. The predictor variable was subjective economic status, which was treated as a continuous measure. The primary outcome was children's matrix reasoning, a domain of cognitive performance, measured by the Wechsler Intelligence Scales for Children-IV (WISC-V) matrix reasoning total score.ResultsOverall, high subjective economic status was associated with higher matrix reasoning score. Race showed a statistically significant interaction with subjective economic status on children's matrix reasoning score. This interaction suggested that high subjective economic status has a smaller boosting effect on increasing matrix reasoning score for non-Hispanic Black children relative to non-Hispanic White children.ConclusionThe degree by which subjective economic status correlates with matrix reasoning score, an important domain of cognitive performance, depends on race and racialization. Non-Hispanic Black children may show weaker gains in matrix reasoning from their subjective economic status than their non-Hispanic White counterparts. To minimize the racial gap in cognitive performance, we need to address diminished returns that occur as a result of the racialization of racial and ethnic minority children. Not only should we equalize economic status, but also increase the marginal returns of economic status for racial minorities, particularly non-Hispanic Black families. Such efforts require public policies that go beyond access and also consider how we can empower non-Hispanic Black communities and families so they can more effectively leverage and utilize their economic resources to secure measurable and tangible outcomes. Structural and societal barriers such as residential and school segregation may hinder non-Hispanic Black children from receiving the full effects of their family-level economic status on a variety of outcomes, including their cognitive performance.

Project description:Many children spend considerable time in daycare centers and may be influenced by the indoor microorganisms there, including fungi. In this study, we investigate the indoor mycobiomes of 125 daycare centers distributed along strong environmental gradients throughout Norway. Dust samples were collected from doorframes outside and inside buildings using a community science sampling approach. Fungal communities in the dust samples were analyzed using DNA metabarcoding of the internal transcribed spacer 2 (ITS2) region. We observed a marked difference between the outdoor and indoor mycobiomes. The indoor mycobiomes included considerably more yeasts and molds than the outdoor samples, with Saccharomyces, Mucor, Malassezia, and Penicillium being among the most dominant fungal genera. Changes in the indoor fungal richness and composition correlated with numerous variables related to both outdoor and indoor conditions; there was a clear geographic structure in the indoor mycobiome composition that mirrored the outdoor climate, ranging from humid areas in western Norway to drier and colder areas in eastern Norway. Moreover, the number of children in the daycare centers, as well as various building features, influenced the indoor mycobiome composition. We conclude that the indoor mycobiomes in Norwegian daycare centers are structured by multiple factors and are dominated by yeasts and molds. This study exemplifies how community science sampling enables DNA-based analyses of a high number of samples covering wide geographic areas. IMPORTANCE With an alarming increase in chronic diseases like childhood asthma and allergies, there is an increased focus on the exposure of young children to indoor biological and chemical air pollutants. Our study of 125 daycares throughout Norway demonstrates that the indoor mycobiome not only reflects cooccurring outdoor fungi but also includes a high abundance of yeast and mold fungi with an affinity for indoor environments. A multitude of factors influence the indoor mycobiomes in daycares, including the building type, inhabitants, as well as the outdoor environment. Many of the detected yeasts and molds are likely associated with the human body, where some have been coupled with allergies and respiratory problems. Our results call for further studies investigating the potential impact of the identified daycare-associated mycobiomes on children's health.

Dataset Information

Subjective Household Economic Status and Obesity in Toddlers: A Cross-Sectional Study of Daycare Centers in Japan.

Background

Design

Results

Conclusion

Publications

Subjective Household Economic Status and Obesity in Toddlers: A Cross-Sectional Study of Daycare Centers in Japan.

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