0696 The Moderating Role of Sleepiness among Intraday Passive and Active Suicidal Ideation

Abstract Introduction Disrupted sleep has been linked to suicidal thought and behavior. Less is known regarding underlying mechanisms of this relationship. A more nuanced understanding the link between suicide may help inform treatment decisions development prevention intervention strategies. We examine prior day sleepiness as a moderator relationship passive active ideation (SI). Methods Young adults (mean age=21.04; SD=2.22) endorsing SI (n=59) at least twice in past two weeks were enrolled trial examining potential iatrogenic effects ecological momentary assessment (EMA) SI. baseline battery collected data on behavior, demographics, psychological distress. EMA surveys administered randomly five times per over four assessed current emotional state including occurrence severity passive/active ideation. Results Altogether, 835 daily average entries utilized present analysis. significant (p<.05) was observed its impact intensity duration Specifically, association stronger days that participants endorsed greater sleepiness. There also interaction such one’s desire die low stay awake significantly interacted predict same-day perceived controllability Meaning when had lower awake, there among ability control live. Conclusion This study examined relationships young thought. Findings indicate relation grows sleepier one relative their level Future studies should incorporate objective measures further explore these findings clinical implications. Support (if any) funded by American Psychological Foundation. work supported, part, VA Center Excellence for Suicide Prevention. Authors’ views do not necessarily represent those Department Veterans Affairs or United States Government.