1117 SLEEP AND SUICIDAL IDEATION: EXAMINATION OF PROSPECTIVE TEMPORAL RELATIONSHIPS

Abstract

Introduction: Previous research has indicated that disturbed sleep is associated with suicidal thoughts and behaviors, independent of depression. However, work in this area has predominantly relied on cross-sectional, self-report and retrospective-design studies. The current investigation aims to provide new insight through the examination of the prospective temporal relationships between actigraphy and subjective measures of sleep and suicidal thoughts, across a seven-day period. Method(s): Currently in this ongoing research, 26 adults with poor sleep quality, severe depressive symptoms and suicidal thoughts, have completed a seven-day experience sampling study. Sleep variables were measured daily using both an actigraphy watch and sleep diary. Momentary assessments of suicidal thoughts were collected six times per day. Result(s): Multilevel modelling was conducted to examine the relationships between sleep and suicidal thoughts, whilst controlling for severity of depressive symptoms. Preliminary analyses indicated that both actigraphy and subjective measures of poor sleep predict daytime levels of suicidal thoughts (ps