gender using χ2 statistical tests. The characteristics of those who self-harmed with desire to die and those who self-harmed without desire to die the most recent time were compared using χ2 statistical tests. Finally, prevalence of suicidal thoughts and plans were examined across the whole sample, comparing those who had ever self-harmed with those who had not, again using χ2 statistical tests. This second set of analyses did not involve data imputation as respondents typically had either all or none of the measures of interest. All analyses were carried out using Stata version 10.0.
