Childhood adversity and psychopathology: the dimensions of timing, type and chronicity in a population-based sample of high-risk adolescents

Table 1 Characteristics of the adolescents (N = 861)

	Male n = 414^a	Female n = 447^a
Age, years	14.87 (14.35, 15.30)	14.84 (14.33, 15.26)
Ethnic origin
Dutch	308 (77%)	338 (78%)
Non-Dutch	90 (23%)	94 (22%)
Net monthly household income, euro’s
< 1599€	47 (12%)	51 (12%)
1600–2399€	57 (15%)	72 (17%)
2400–4399€	192 (50%)	209 (50%)
> 4400€	91 (23%)	84 (21%)
Educational level
Pre-vocational education	176 (43%)	206 (47%)
Higher general education	82 (20%)	109 (25%)
Pre-university education	88 (22%)	86 (18%)
Combined educational level	42 (10%)	29 (7%)
Special needs education	21 (5%)	13 (3%)
Urbanicity of living environment^b
Urban	255 (62%)	260 (58%)
Suburban	79 (19%)	88 (20%)
Rural	80 (19%)	99 (22%)
Parental psychopathology, score^c	0.14 (0.02, 0.21)	0.18 (0.04, 0.25)
Broad adverse life events^d	3.32 (2.00, 4.00)	3.39 (2.00, 5.00)
Physical adverse life events, number^e
Total	107 (26%)	100 (22%)
Age up to 3	7 (1.7%)	8 (1.8%)
Age 4 to 8	22 (5.3%)	32 (7.2%)
Age 9 to 12	62 (15%)	28 (6.3%)
Age older than 12	29 (7.0%)	41 (9.2%)

^aMean (Interquartile range); n (%)
^bDefined as number of addresses per km² surrounding home address
^cMeasured by the Basic Symptom Inventory
^dSum count of the following categories: hospitalization of the adolescent; serious illness or hospitalization of the mother, father, sibling or close friend; death in the family or outside of family; parental divorce; repeating class; switching school; extended living away from home; physical violence and sexual abuse. See Additional file 1: Table S3 for full distribution of events across age groups
^eSum count exclusively of physical violence and sexual abuse. Presented if either occurred in a given age group

ISSN: 1753-2000