Treating posttraumatic stress disorder in substance use disorder patients with co-occurring posttraumatic stress disorder: study protocol for a randomized controlled trial to compare the effectiveness of different types and timings of treatment

Table 1 Measurement instruments at every measurement moment

	Screening measurement	T0	T1	T2	T3
Interview
CAPS-5		x	x	x	x
SCID-5-CV	x				x
Self-report
BSI		x	x	x	x
AUDIT		x	x	x	x
DUDIT		x	x	x	x
MATE-Q module 1		x	x	x	x
DERS		x	x	x	x
IIP-32		x	x	x	x
TRGI		x	x	x	x
TRSI		x	x	x	x
ZECV		x	x	x	x
TiC-P			x	x	x
EQ-5D		x	x	x	x
Extension of LEC-5		x	x	x	x
ITQ (part 2)		x
CTQ-sf		x
DES subscale from SSQ		x
STROOP & delay discounting task		x			x

Legend: Abbreviations: CAPS-5 Clinician Administered PTSD Scale for DSM-5, SCID-5-CV Structured Clinical Diagnostic Interview for DSM-5 disorders – clinician version, BSI Brief Symptom Inventory, AUDIT Alcohol Use Disorder Identification Test, DUDIT Drug Use Disorders Identification Test, MATE-Q module 1 Meten van Addicties voor Triage en Evaluatie, DERS Difficulties in Emotion Regulation Scale, IIP-32 Inventory of Interpersonal Problems, TRGI Trauma-Related Guilt Inventory, TRSI Trauma-Related Shame Inventory, ZECV Zelf Expressie en Controle Vragenlijst, TiC-P Trimbos iMTA questionnaire for Costs associated with Psychiatric illness, EQ-5D EuroQol, LEC-5 Life Events Checklist for DSM-5, ITQ International Trauma Questionnaire, CTQ-sf Childhood Trauma Questionnaire-short form, DES Daily Emotional Support subscale. Note T0–3 are subsequently the baseline assessment, and assessments at 3 month, 6 month and 9 month follow up

ISSN: 1471-244X