A1 Refereed original research article in a scientific journal
The Structure of Child Adoption Based on the Relationship Between Adoptive Parents and Adoptive Children in Finland
Authors: Lehti, Hannu; Tanskanen, Antti O.
Publisher: Springer Science and Business Media LLC
Publishing place: LONDON
Publication year: 2024
Journal: Evolutionary Psychological Science
Journal name in source: Evolutionary Psychological Science
Journal acronym: EVOL PSYCHOL SCI
Number of pages: 5
eISSN: 2198-9885
DOI: https://doi.org/10.1007/s40806-024-00420-4(external)
Web address : http://doi.org/10.1007/s40806-024-00420-4(external)
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/477048387(external)
Humans, like many other primates, possess the ability to adopt, and the practice of child adoption exists across human societies. It is well-known that there are three distinct categories of child adoption-kin adoption (i.e., when a relative adopts a child), intrafamilial adoption (i.e., when a stepparent adopts a child) and stranger adoption (i.e. when a child is unrelated to the adoptive parents). However, there is a lack of studies providing exact information on the relationship between adoptive parents and children. We calculated the relative frequencies of the adoption types using high-quality register data covering all child adoptions in Finland between 1999 and 2021 (n = 7422). Stranger adoption was the most common category of child adoption, followed by intrafamilial adoption, with kin adoption being the least frequent. Among stranger adoptions, it was found that single females were more likely to become adoptive parents than single males. In intrafamilial adoptions, stepfathers were more frequently adoptive parents than stepmothers, and female same-sex couples were more likely to be adoptive parents than male same-sex couples. In the case of kin adoptions, grandparents were the most common adoptive parents, followed by aunts and uncles. Maternal kin were more likely to become adoptive parents than paternal kin. The findings are discussed regarding evolutionary theories on parental investment and substitute parenting.
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Funding information in the publication:
Open Access funding provided by University of Turku (including Turku University Central Hospital). Financial support was received from the Strategic Research Council (grant no. 345183) and the Research Council of Finland (grant nos. 320162, 331400, 338869, and 355009).
