Figure 1 Classification of intent (suicide v unintentional) based on CART analysis. Note: this figure highlights suicidal behavior, alcohol or drug abuse/dependence, physical health problems, depression, one or more contributing factors (see table 4 footnotes), and age >47 years as discriminating between suicide and unintentional poisoning. Parenthetical numbers represent the total cases in each terminal node for those having reported manner of death of either suicide or unintentional (n = 128).