Long-term effects of pre-adoptive risk on emotional and behavioral functioning in children adopted from foster care

Children adopted from foster care are at heightened risk for emotional and behavioral challenges, potentially due to early trauma exposure and related risk factors. Research has demonstrated that adoptees with greater pre-adoptive risk exhibit higher rates of internalizing and externalizing problems across childhood and into adulthood. However, these studies have been limited by their use of individual risk factors or sum scores of cumulative risk and their measurement of internalizing and externalizing behaviors separately.

The current study aimed to examine effects of pre-adoptive risk on long-term functioning in children adopted from foster care.

In a longitudinally-followed sample of 82 adoptees, we utilized latent growth curve modeling to examine effects of two latent indices of pre-adoptive risk, postnatal (i.e., trauma-related) risk and prenatal risk (not including prenatal substance exposure, since it was nearly ubiquitous in this sample), on adoptee internalizing, externalizing, and latent scores of dysregulation across childhood. Additionally, in three separate models, we tested whether baseline levels and change across childhood in internalizing, externalizing, and dysregulation mediated effects of prenatal and postnatal risk on adolescent/young-adult functioning.

Greater postnatal risk, but not prenatal risk, predicted higher levels of internalizing and dysregulation across childhood. However, only dysregulation mediated the effect of postnatal risk on adolescent/young-adult functioning.

These results are consistent with prior research evidencing long-term effects of postnatal pre-adoptive risk, but not prenatal risk, in adoptees. Furthermore, they suggest that trauma exposure in this population may result in a profile of broad dysregulation that increases risk for maladjustment into adulthood.