ifferent forms of child maltreatment -physical abuse, sexual abuse, emotional abuse, neglect, and exposure to domestic violence -are associated with substantial adverse effects throughout life on mental health, physical health and health risk behaviour. 1,2 However, most research considers bilateral relationships between an individual maltreatment type and measures of wellbeing. Unless the totality of a person's experience of different types of maltreatment is measured, researchers and clinicians may misattribute outcomes to one type of maltreatment. Further, outcomes attributed to individual maltreatment types cannot simply be added to understand the consequences of multiple forms of maltreatment.