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Long term effects of early institutional care: a prospective longitudinal study.

SUMMARY 
The aim of this prospective, longitudinal study has been to investigate the possible long-term effects of early institutional care. The proband series consists of 579 children whose mothers had registered them for adoption. About two-thirds had been in infants’ homes from soon after birth up to the age of twelve months. At the age of 15 there were no significant differences between those who had been cared for and those who had not been cared for in infants’homes concerning their adjustment or performance at school. 
 
An analysis of the relation between length of stay in an institution and school-performance or adjustment showed no association among children who had been restored to their biological mothers. On the other hand those children who had been subsequently placed in an adoptive or foster home had slightly lower performance or were less well adjusted if they had stayed in a home for more than six months before placement. It is conceivable that these contradictory findings reflect selective factors in the placement of children who went to non-biological homes.