A systematic review of PTSD to the experience of psychosis: prevalence and associated factors

BMC Psychiatry

Table 3 Key findings of prevalence of psychosis-related PTSD from included studies

	Study	Trauma measure used	Criteria for psychosis-related PTSD	Treatment & symptoms separated?	Key findings of prevalence
	Study	Trauma measure used	Criteria for psychosis-related PTSD	Treatment & symptoms separated?	Full PTSD for all causes	Full PTSD related to symptoms	Full PTSD related to treatment
1	Abdelghaffar et al. (2018) [25]	CAPS	‘Full’ PTSD: Fulfils criteria A, B, C, D	Yes + combined	42.3%	23.1%	19.2%
1	Abdelghaffar et al. (2018) [25]	CAPS	‘PTSD Syndrome’: Fulfils criteria B, C, D	Yes + combined	69.2%	23.1%	19.2%
2	Bendall et al. (2012) [26]	IES-R	Exceeds clinical cut-off score^a	No	47%	-	-
3	Berry et al. (2015) [27]	IES-R	Exceeds clinical cut-off score^a	Yes	30%	24%	18%
4	Picken & Tarrier (2011) [24]	PDS	‘Modified-Full’ PTSD: A, B, C, D	Yes	-	14% delusions 16% hallucinations	21% involuntary admission 3% traumatic treatment
5	Pietruch & Jobson (2012) [23]	IES-R	Exceeds clinical cut-off score^a	No	41.18%	-	-
6	Turner et al. (2013) [28]	IES-R	Exceeds clinical cut-off score^a	No	14%	-	-
6	Turner et al. (2013) [28]	IES-R	Exceeds cut-off for partial symptoms^b	No	24%	-	-

CAPS Clinician-Administered PTSD Scale [29], IES-R Impact of Events Scale–Revised [30], PDS Posttraumatic Stress Diagnostic Scale [31], ^aCut-off score of 33 on IES-R recognised as having diagnostic accuracy for PTSD [32]. ^bPartial symptoms: above cut-off scores for subscale of re-experiencing plus either avoidance or hyperarousal, as proposed by Asukai et al. (2002) [33]

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