“…Children exposed to parental separation have been reported to show poorer well-being and mental health during childhood and adulthood, compared with those with parents who never separated or divorced. 5 , 6 , 7 Exposure to parental separation has also been linked with elevated risk for delinquency and violence, 8 , 9 , 10 , 11 , 12 , 13 , 14 but despite there being a notable body of research on this topic, large gaps in understanding remain. For example, limited and conflicting evidence exists regarding how associations vary by separation from mother only, father only, or from both parents, 8 , 15 , 16 by offspring gender, 9 , 17 , 18 and timing of child–parent separation, 9 , 15 , 19 especially in relation to subsequent violent criminality risk.…”