Table 3.

Studies referring to PTSD, suicidality, and sleep-related breathing disorders.

Reference	Core issue	Sample	Sex (male)	Measurements	Main findings
Gupta and Jarosz (80)	Diagnosing OSAS by sleep study and SI in patients with PTSD	Civilians with PTSD (n = 40)	5%	4 items of the BSI (SI), PSQI PTSD addendum modified (nightmares) PCL-5 (PTSD)	- OSAS severity was directly related to SI - Depression was a significant mediator in the relationship between RDI and SI
Krakow et al. (43)	Prevalence of sleep disorders and the influence on suicidality, and depression severity	Female sexual assault survivors enrolled in a nightmare-treatment program (n = 153), with PTSD: 94%	0%	Wisconsin Cohort Sleep Survey (sleep disorders), Nightmare Frequency Questionnaire (nightmares), PSQI (sleep quality), PSS (PTSD)	- Prevalence of sleep breathing disorder: 15% - Prevalence of sleep movement disorder: 29,4% - Association of potential sleep disorders with greater depression and greater suicidality - Prevalence of combination of both disorders: 35,9%; this group suffered from most severe depression and suicidality

Cursive references denotes studies on civilian samples.