Table 1.

PTSD symptoms, abbreviations and ranking on measures of strength centrality

DSM-5 Symptom Cluster and Number	DSM-5 Symptoms	Abbreviation	Discovery Sample	PTSD-MDD	PTSD +MDD
B1	Intrusive distressing thoughts or memories	Mem	X	X	X
B2	Distressing dreamsa	Drm	X
B3	Dissociative flashbacksa	Fls			X
B4	Psychological distress	Ups		X	X
B5	Physiological reactions	Phy
C1	Efforts to avoid thoughts/memoriesa	Avm	X	X
C2	Efforts to avoid external remindersa	Avx	X
D1	Inability to recall features of the trauma	Amn
D2	Negative beliefs	Blf
D3	Distorted blaming of oneself or others	Blm
D4	Persistent negative emotional state	Neg	X	X	X
D5	Diminished interest in activities	Anh			X
D6	Detachment from others	Cut
D7	Inability to experience positive emotions	Pos	X	X	X
E1	Irritable behavior	Irr
E2	Self-destructive or reckless behavior	Rsk
E3	Hypervigilancea	Hyp		X	X
E4	Exaggerated startle responsea	Str
E5	Problems with concentration	Cnc
E6	Sleep disturbance	Slp

Note. Results are presented for the full sample. PTSD = posttraumatic stress disorder; DSM = Diagnostic and Statistical Manual of Mental Disorders; MDD = major depressive disorder; PTSD-MDD = subgroup of participants who met criteria for PTSD but not MDD; PTSD+MDD = subgroup of participants who met criteria for PTSD and MDD. X = symptom was in the top 6 items on a given centrality measure.

^asymptoms proposed for inclusion in the International Classification of Disease (ICD)-11.