Children's Health

Neighborhood socioeconomic disadvantage linked to adverse weight development in children

A new study shows that living in a neighborhood socioeconomic disadvantage is a risk factor for adverse weight development in children under school age. Researchers studied the connection between neighborhoods’ socioeconomic status and children’s weight development from data covering over 11,000 Finnish children.

A new study conducted at the University of Turku, Finland, examined the association between the neighborhood socioeconomic disadvantage and the development of children’s body mass index and the risk of overweight from birth to school age. The children’s growth data was acquired from a national register of well-baby clinics.

Information on the socioeconomic status of the neighborhood was linked to the participants with address coordinates using the national grid database of Statistics Finland. The database contains information that is based on all Finnish residents on social and economic characteristics at the level of 250 m x 250 m grids.

The socioeconomic status of the neighborhood was measured with education level, household income, and unemployment rate. The results were independent of the education level, economic situation, marital status and health of the children’s parents.”

Docent Hanna Lagström, Lead Author, Department of Public Health, University of Turku

Living in a less prosperous neighborhood posed a major risk for children to develop overweight by school age in the population-based data, even when the researchers considered factors that can increase the risk of overweight in childhood. These included e.g. mother’s type 2 diabetes, mother’s smoking, and child’s high birth weight. In neighborhoods with a higher socioeconomic status, children weighted more at birth, but their weight development stabilized already by the age of four.

– This could implicate that neighborhoods can offer very different types of development environments for children, and that the risk of overweight grows before school age in neighborhoods with lower socio-economic status. The results of our research are an important factor to take into consideration in e.g. city planning to ensure that inequality is stopped right from the childhood, says Lagström.

The study is based on 2008-2010 data from the Southwest Finland Birth Cohort (SFBC). The Birth Cohort consists of all children born in the Hospital District of Southwest Finland during those three years. In this study, the participants consisted of the first children born to the mothers during this time.
The research was funded by the Academy of Finland and Juho Vainio Foundation as well as the Hospital District of Southwest Finland.

Journal reference:

Rautava, S., et al. (2022) Neighborhood Socioeconomic Disadvantage and Childhood Body Mass Index Trajectories From Birth to 7 Years of Age. Epidemiology.

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