Systematic Review of Research and Interventions With Frequent Callers to Suicide Prevention Helplines and Crisis Centers

This literature review was part of a larger study that was commissioned by the National Suicide Prevention Lifeline (NSPL) and funded by Vibrant Emotional Health. The authors thank Nancy Logue for her comments on a draft of this manuscript, as well as John Draper, Alena Goldstein, and Gillian Murphy for their support of this project.

All authors contributed to the overall design, review, discussion of findings, and manuscript preparation. L. D. was mainly responsible for conducting the literature search, with input from the others. B. L. M. drafted the manuscript and all authors contributed.

None of the authors have competing interests to report.