Author:
Granlund Anna,Soares Fernanda Cunha,Hjern Anders,Dahllöf Göran,Julihn Annika
Abstract
Abstract
Background
To study the association of maternal age upon arrival and length of residence in Sweden with the 4-year caries increment in their children between ages 3 and 7 years in relation to the human development index (HDI) of the maternal country of origin.
Method
This registry-based cohort study included all children born in 2000–2003 who resided in Stockholm County, Sweden, at age 3 years and who were followed up at age 7 (n = 63,931). Negative binomial regressions were used to analyze different models adjusted for sociodemographic factors.
Results
Children of foreign-born mothers, regardless of the HDI of the maternal country of origin, had a higher risk of caries increment between ages 3 and 7 years than children of Swedish-born mothers. Furthermore, children of mothers who had arrived from a low or medium HDI country had a lower caries increment if their mothers arrived before age 7 compared with after age 7. Nearly half (44%) of the children whose mothers arrived in Sweden at age ≥ 20 years from a low HDI country had a caries increment compared to 22% of the children whose mothers had arrived in Sweden before 7 years of age. Furthermore, children whose mothers were born in a low HDI country and had resided in Sweden ≤ 19 years had approximately 1.5 times higher risk of caries increment compared to children of mothers who had resided in Sweden for more than 20 years.
Conclusions
Caries increment in the children of foreign-born mothers was associated with the age of their mother when she arrived in Sweden and was lower when the mother had arrived before age 7 years. This indicates an intergenerational effect that carries over to the children and is greater the longer the mother has participated in Swedish dental healthcare.
Funder
Stiftelsen Patentmedelsfonden för Odontologisk Profylaxforskning
Publisher
Springer Science and Business Media LLC
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