Peer-Reviewed Journal Details
Mandatory Fields
Class QA, Abel KM, Khashan AS, Rickert ME, Dalman C, Larsson H, Hultman CM, Långström N, Lichtenstein P, D'Onofrio BM
Psychological medicine
Offspring psychopathology following preconception, prenatal and postnatal maternal bereavement stress.
Optional Fields
Attention deficit hyperactivity disorder; autism; postnatal; preconception; prenatal; psychiatric; psychopathology; schizophrenia; stress; suicide
Background Preconception, prenatal and postnatal maternal stress is associated with increased offspring psychopathology, but findings are inconsistent and need replication. We estimated associations between maternal bereavement stress and offspring autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), bipolar disorder, schizophrenia, suicide attempt and completed suicide. Method Using Swedish registers, we conducted the largest population-based study to date examining associations between stress exposure in 738 144 offspring born 19922000 for childhood outcomes and 2 155 221 offspring born 19731997 for adult outcomes with follow-up to 2009. Maternal stress was defined as death of a first-degree relative during (a) the 6 months before conception, (b) pregnancy or (c) the first two postnatal years. Cox proportional survival analyses were used to obtain hazard ratios (HRs) in unadjusted and adjusted analyses. Results Marginal increased risk of bipolar disorder and schizophrenia following preconception bereavement stress was not significant. Third-trimester prenatal stress increased the risk of ASD [adjusted HR (aHR) 1.58, 95% confidence interval (CI) 1.152.17] and ADHD (aHR 1.31, 95% CI 1.041.66). First postnatal year stress increased the risk of offspring suicide attempt (aHR 1.13, 95% CI 1.021.25) and completed suicide (aHR 1.51, 95% CI 1.082.11). Bereavement stress during the second postnatal year increased the risk of ASD (aHR 1.30, 95% CI 1.091.55). Conclusions Further research is needed regarding associations between preconception stress and psychopathological outcomes. Prenatal bereavement stress increases the risk of offspring ASD and ADHD. Postnatal bereavement stress moderately increases the risk of offspring suicide attempt, completed suicide and ASD. Smaller previous studies may have overestimated associations between early stress and psychopathological outcomes.
Grant Details