Citation

Fitzpatrick S, Varma S, Ip J. Arch. Suicide Res. 2021; ePub(ePub): ePub.

Copyright

(Copyright © 2021, International Academy of Suicide Research, Publisher Informa - Taylor and Francis Group)

DOI

10.1080/13811118.2021.1932647

PMID

unavailable

Abstract

OBJECTIVE: Borderline personality disorder (BPD) involves high rates of non-suicidal self-injury (NSSI) and suicidal behaviors, which are often preceded by urges. Disrupted sleep processes have been linked to NSSI and suicidal behaviors. However, it is unclear which specific sleep processes influence NSSI and suicide urges at rest (i.e., baseline) or in response to distress (i.e., reactivity) in BPD, and thus require targeting in BPD-specific interventions. This study examined whether two distinct homeostatic sleep processes (i.e., total sleep time [TST] and time in bed [TIB]), and one circadian sleep process (i.e., chronotype, or tendencies toward early versus late bed and rise times) predict baseline NSSI and suicide urges and urge reactivity in BPD.

METHODS: Forty adults with BPD completed a seven-day sleep diary to measure average TST and TIB. They then completed a questionnaire to measure chronotype and underwent an experiment wherein they rated NSSI and suicide urges at baseline and following an emotion induction.

RESULTS: Generalized estimating equations revealed that higher TST was associated with lower baseline NSSI urges, and lower suicide urge reactivity. Additionally, higher TIB predicted higher NSSI urge reactivity.

CONCLUSIONS: Sleep deprivation and extended time in bed may increase proclivity toward NSSI and/or suicide. Targeting these variables in BPD interventions may ultimately facilitate the reduction of NSSI and suicidal acts. HighlightsHigher total sleep time predicts lower baseline NSSI urges, suicide urge reactivityHigher time in bed predicts higher NSSI urge reactivityReducing sleep deprivation in BPD may facilitate reductions in suicide, NSSI urges.

Language: en

Keywords

suicide; sleep; non-suicidal self-injury; Borderline personality disorder; circadian