Finally, due to the relatively small number of individuals reporting SAP and SANP, we did not further probe whether intent to die, an aspect of self injury that is associated with risk influences similar to suicide completion, including a greater than 2-fold increase in drug use disorders, modified these associations (Nock and Kessler, 2006). Of those reporting SAP and SANP, 60% and 40% reported intent respectively. Stratifying by intent alone (no attempt, attempt without intent and attempt with intent) did not yield significant associations with any level of cannabis involvement (OR = 0.78–1.17, p > 0.05). Similarly, associations with SAP remained non-significant when stratified by intent. For SANP, while the point estimates were no longer statistically significant, the magnitude of the ORs suggested that while intent may enhance the association, SANP without intent was also associated with cannabis involvement. For instance, the OR for SANP with intent was 2.89 [95% C.I. 0.94–8.88] relative to an OR of 1.98 [95% C.I. 0.88–4.47] for SANP without intent.
