Adoption USA. A Chartbook Based on the 2007 National Survey of Adoptive Parents. Notes


i These figures are likely underestimates of the percentages of children who actually have birth siblings, as many parents did not know whether their children have birth siblings.
ii Many of these children have siblings living elsewhere or with another parent or older siblings no longer living in the same household. The percentage of adopted children who are “only children”—that is, who have no other biological or adoptive siblings living anywhere—is smaller.

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