Table 3.

Sample Comparisons: CA (n = 638) versus No-CA (n = 501) Groups.

Variable	CA	No-CA	t*1/z*2/X2*3 (DF)	p	95% CI*4
gender	n girls = 358 n boys = 280	n girls = 262 n boys = 239	1.50(1)	0.22
age	M = 14.49, SD = 0.28	M = 14.48, SD = 0.28	−0.43(1049.3)	0.67	−0.04–0.03
SES*5	n hard pressed = 77 n moderate means = 36 n comfortably off = 170 n urban prosperity = 37 n wealthy achievers = 318	n hard pressed = 30 n moderate means = 11 n comfortably off = 105 n urban prosperity = 41 n wealthy achievers = 314	5.45	<0.001
psychiatric history (PH)*6	n PH = 201 n no-PH = 437	n PH = 74 n no-PH = 427	42(1)	<0.001
depression symptoms*7	M = 17.42, SD = 11.61	M = 14.03, SD = 10.46	−5.10(1088.5)	<0.001	−4.69–−2.09
anxiety symptoms*8	M = 16.92, SD = 12.61	M = 13.92, SD = 11.28	−4.17(1089.2)	<0.001	−4.42–−1.59

Note. CA = childhood adversity. SES = socio-economic status. ^*1We applied Welsh’s two-tailed independent sample t-test to account for potentially unequal variances across groups. ^*2As SES was split in five ordered categories, we applied the two-tailed Asymptotic Cochran-Armitage test⁷⁰. ^*3We applied two-tailed Pearson’s chi-square tests. ^*4The confidence interval (CI) for the difference in location estimates, corresponding to the alternative hypothesis. ^*5SES was assessed with the ACORN classification system (http://www.caci.co.uk)⁷¹. ^*6Psychiatric history was assessed with the Schedule for Affective Disorders and Schizophrenia for School-Age Children (Present and Lifetime Version), additionally including learning disabilities, clinical sub-threshold diagnoses and deliberate self-harm⁷². ^*7Depression symptoms were assessed with the Mood and Feeling Questionnaire⁴⁷. ^*8Anxiety symptoms were assessed with the Revised Children’s Manifest Anxiety Scale⁴⁸.