Individuals with and without child maltreatment experiences are evaluated similarly and do not differ in facial affect display at zero- and first-acquaintance

Table 1 Summary statistics of the Target participants’ characteristics

	CM + (n = 40)		CM- (n = 40)
	n	%	n	%	Group comparison
Female gender	26	65.0	25	62.5	ns
Anxiety disorders^a	10	25.0	4	10.0	ns
Obsessive–compulsive disorder^a	4	10.0	1	2.5	ns
Affective disorders^a	6	15.0	1	2.5	ns
Eating disorders^a	0	0.0	1	2.5	ns
Sleeping disorders^a	6	15.0	0	0.0	χ² [1] = 6.49 ^*
SSRI medication	6	15.0	1	2.5	ns
Other antidepressant medication	4	10.0	0	0.0	ns
	M	SD	M	SD
Age (years)	33.00	13.69	32.85	12.46	ns
Educational group	2.46	0.82	2.4	0.78	ns
BDI-2	10.75	9.43	3.45	3.62	CM + > CM-; U = 353.0 ^***
MSI-BDI	3.98	2.59	0.88	1.34	CM + > CM-; U = 260.0 ^***
CTQ emotional neglect	16.37	5.11	6.53	1.39	CM + > CM-; U = 060.5 ^***
CTQ physical neglect	8.35	3.06	5.18	0.39	CM + > CM-; U = 225.5 ^***
CTQ emotional abuse	12.00	5.34	5.50	0.85	CM + > CM-; U = 164.0 ^***
CTQ physical abuse	8.13	4.28	5.13	0.34	CM + > CM-; U = 435.0 ^***
CTQ sexual abuse	8.53	6.13	5.00	0.00	CM + > CM-; U = 460.0 ^***
PDS	2.28	2.11	0.98	1.27	CM + > CM-; U = 680.0 ^***

For count data comparison chi-square test and Fisher's exact test were used. Educational groups consisted of 4 levels: 1 = 11 years of education, 2 = 14–15 years of education, 3 = 19–22 years of education and 4 = 24–26 years of education. All p-values were computed two-sided. CM + Child maltreatment group, CM- Non child maltreatment group, ns Non-significant, * = p < .05, *** = p < .001, ^a assessed with Mini-DIPS, MSI-BPD Dimensional Borderline Personality Disorder score, SSRI Selective Serotonin Reuptake Inhibitor, BDI-2 Beck Depression Inventory 2, CTQ Childhood Trauma Questionnaire, PDS Post-Traumatic Stress Diagnostic Scale

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