The relation between out-of-home care, early school failure, and premature mortality: a 30-year follow-up of people treated for substance misuse in Sweden

Abstract

Evidence from Swedish and international studies show that a high proportion of children from out-of-home care (OHC) have poor school performance and that this is strongly associated with their substantial risk of adverse development in future life. However, risk factors for poor school performance and adverse development are difficult to disentangle since they are often interrelated and enforce each other over the life course. This study examines premature mortality in relation to early school failure (drop-out from compulsory school) and OHC experience in childhood (0-17 years of age) among clients who were in treatment for substance misuse in the early 1980s (N = 1,036). The analyses were based on record linkages between interview data collected during treatment and national register data covering approximately 30 years of follow-up, from exit from treatment until 2013. Our results showed that 54 per cent had been placed in OHC as children, half before their teens and half as teenagers. The OHC population had a higher prevalence of school failure compared with clients who had not been exposed to childhood OHC. OHC was associated with an excess mortality, although this was only significant for females who had entered OHC before their teens. Adjusting results for school failure reduced their excess mortality by half, and additional life course factors associated with mortality among people with substance misuse adjusted for most of the remaining excess mortality. School failure was strongly associated with the excess mortality of females, but not with the excess mortality of males.