TY - JOUR PY - 2019// TI - Predicting Imminent Suicidal Thoughts and Nonfatal Attempts: The Role of Complexity JO - Clinical psychological science A1 - Ribeiro, J.D. A1 - Huang, X. A1 - Fox, K.R. A1 - Walsh, C.G. A1 - Linthicum, K.P. SP - 941 EP - 957 VL - 7 IS - 5 N2 - For decades, our ability to predict suicidal thoughts and behaviors (STBs) has been at near-chance levels. The objective of this study was to advance prediction by addressing two major methodological constraints pervasive in past research: (a) the reliance on long follow-ups and (b) the application of simple conceptualizations of risk. Participants were 1,021 high-risk suicidal and/or self-injuring individuals recruited worldwide. Assessments occurred at baseline and 3, 14, and 28 days after baseline using a range of implicit and self-report measures. Retention was high across all time points (> 90%). Risk algorithms were derived and compared with univariate analyses at each follow-up.

RESULTS indicated that short-term prediction alone did not improve prediction for attempts, even using commonly cited "warning signs"; however, a small set of factors did provide fair-to-good short-term prediction of ideation. Machine learning produced considerable improvements for both outcomes across follow-ups.

RESULTS underscore the importance of complexity in the conceptualization of STBs. © The Author(s) 2019.

Language: en

LA - en SN - 2167-7026 UR - http://dx.doi.org/10.1177/2167702619838464 ID - ref1 ER -