Previous research has suggested that young people who grew up in homes where their parents were violent or abusive towards each other are more likely to have violent or abusive relationships themselves. We have been looking into this in Children of the 90’s data, to get a better understanding of the relationship between growing up around violence or abuse between parents in the UK, as reported by the parents at the time of the violence or abuse, and being in a violent or abusive relationship as a young adult. However, some participants (both parents and children) will have left the study since being initially recruited, and it is likely that those who are in abusive relationships are more likely to be the ones that leave. In this study, we want to find ways to account for these people that have left, so that our estimates about the risks of being in an abusive relationship are more accurate.