Table 1 Comparison, by age group, of the characteristics of the adults who witnessed and did not witness interparental violence in childhood, SIRS cohort, Paris metropolitan area, 2005

	Witnessing of interparental violence in childhood
	Overall		Age 18–36		Age 37–54		Age >54
	Yes	No	Yes	No	Yes	No	Yes	No
	(511)	(2483)	(189)	(802)	(185)	(812)	(137)	(869)
Demographics
Age (mean)	42.6	45.7	28.2	27.7	44.3	45.4	67.0	68.7
Female	55.3	52.4	52.0	51.6	54.9	49.6	61.7	56.5
French nationality	88.2	85.9	83.3	83.5	88.5	84.2	97.2*	90.7
Psychosocial outcomes in adulthood
Internalising disorders
Current depression	18.3***	10.4	18.3***	9.4	19.5**	10.4	16.0	11.7
Lifetime suicide attempt	6.0***	2.3	4.0**	1.2	6.3*	2.7	9.3**	3.2
Intrafamilial conduct disorders
Intimate partner violence	8.1***	1.9	7.4***	1.1	12.5***	2.5	2.9	2.2
Perpetration of child maltreatment	3.8***	0.6	0	0	7.4***	0.7	0	0.8
Alcohol dependence	17.8***	9.2	16.8*	9.4	21.2**	12.2	14.4**	5.7
Childhood family-level stressors
Poor mother–child relationship	25.8***	10.7	21.4***	9.0	27.6***	11.8	30.8***	11.6
Poor father–child relationship	50.1***	19.0	52.0***	20.1	52.3***	19.3	43.4***	17.4
Parental separation or divorce	32.3***	9.0	43.6***	14.6	24.7***	6.6	23.4***	4.6
Parental death	5.4***	11.2	5.0	7.2	5.2	9.6	6.6**	18.0
Parental incarceration	2.9***	0.6	3.0**	0.6	1.2*	0.1	4.7**	1.1
Parental suicide attempt	7.1***	0.9	7.0***	1.4	7.6***	1.1	6.5***	0.1
Parental alcoholism	26.8***	3.5	26.9***	3.1	28.7***	4.4	23.6***	2.9
Physical abuse in childhood	12.2***	1.5	9.5***	1.2	16.5***	1.7	9.4***	1.9
Sexual abuse in childhood	6.9***	1.5	5.9***	1.7	8.7***	1.6	5.6**	1.2
Childhood social-level stressors
Family financial problems	33.0***	15.2	31.0***	12.5	29.2***	14.6	41.9***	19.3
Poor parental health status	30.0***	19.1	29.4***	17.3	29.9**	18.7	32.1*	21.7
Housing problems	11.1***	4.5	9.5***	3.6	11.1***	2.7	14.2*	7.8
Parental unemployment	16.3***	6.2	21.9***	10.9	12.7***	3.6	10.5***	3.3

*p Value <0.05; **p value <0.01; ***p value <0.001.