The demographic variables of age, sex, hospital site, and parental household composition (whether or not each parent, or both parents, live with the adolescent) were not significantly associated with suicide attempts during follow-up based on univariate analysis. Similarly, race alone was not a significant predictor of time-to-attempt (HR = 1.14 95% CI: 0.52–2.51, p = 0.75 for Caucasians relative to non-Caucasians). In terms of clinical variables, anxiety symptoms (on the MASC), alcohol and substance use disorder scores (PESQ), family and social support (PSS-Family), and YSR Externalizing scores were not associated with suicide attempts during follow-up. Finally, maternal and paternal history of a past suicide attempt, and alcohol/substance abuse and criminal behavior were not significant in separate univariate models.
