Mother adversity and co-residence time impact mother–child similarity in genome-wide and gene-specific methylation profiles

Table 1 Sociodemographic profile in the neglect and control groups

Variables	Neglect group n = 40 mothers	Control group n = 75 mothers	Comparison
Variables	M (SD) or %	M (SD) or %	t(113)/X²
Mother current age	31.95 (6.66)	34.96 (6.18)	−2.13*
Age at child’s birth	27.89 (6.75)	31.07 (5.80)	−2.55*
Number of children	2.53 (1.34)	1.63 (0.61)	4.02***
Two-parent family %	48	77	6.31**
Level of education %			12.9**
Primary	77	43
Secondary	20	53
> Secondary	3	4
Unemployment %	70	57	1.28
Financial assistance %	63	20	18.94***

Children	n = 40	n = 75	t(113)/X²
Age of target child (in years)	4.06 (2.77)	3.89 (2.15)	0.34
Female %	55	40	1.80

*p < .05; **p < .01; ***p < .001. Note: Group comparisons with mean scores were performed with t statistic, while those with percentage values were performed with Chi-square (χ²) statistic

ISSN: 1868-7083