Table 1.

Demographic characteristics and socioeconomic status of children and their parents, for families who participated in the JA Kids cord blood sub-study and follow up visits (n = 44).

Variables	Categories	n = 44	n = 23	n = 21	P value d
		N (%)	N (%)	N (%)
Sex of the child	Male	19 (43.2)	9 (39.1)	10 (47.6)	0.57
	Female	25 (56.8)	14 (60.9)	11 (52.4)
Age of the child (months)	Age < 60	9 (20.4)	4 (17.40)	5 (23.8)	0.60
	Age ≥ 60	35 (79.6)	19 (82.6)	16 (76.2)
Race of the child	Afro-Caribbean	38 (86.4)	18 (78.3)	20 (95.2)	0.13
	Mixed	6 (13.6)	5 (21.7)	1 (4.8)
Paternal education a (at child’s birth)	Up to high school *	23 (53.5)	12 (52.2)	12 (60.0)	0.43
	Beyond high school **	20 (46.5)	11 (47.8)	8 (40.0)
Maternal education b (at child’s birth)	Up to high school *	10 (25.0)	5 (22.7)	5 (27.8)	0.71
	Beyond high school **	30 (75.0)	17 (77.3)	13 (72.2)
Assets owned c	Family owns a home	24 (60.0)	14 (70.0)	10 (50.0)	0.20
	Family rented a home	10 (25.0)	4 (20.0)	6 (30.0)	0.47
	Family home without any payments	6 (15.0)	2 (10.0)	4 (20.0)	0.38
	Washing machine	32 (80.0)	18 (90.0)	14 (70.0)	0.13
	Family owns a car	27 (67.5)	14 (70.0)	13 (65.0)	0.74

Note: Demographic characteristics and socioeconomic status of children and their parents, for families who participated in the JA Kids cord blood sub-study follow up visit when the children were 4–8 years old (n=44), those children who did not provide childhood blood samples during the follow up visit, (n=23), and those who provided both cord- and childhood- blood samples during the follow up visit, n=21.

^*Up to high school education includes: attended primary, junior-secondary, and secondary/ high/technical schools

^**Beyond high school education includes: attended vocational, tertiary college, or university.

^aPaternal education was missing for 1 father.

^bMaternal education was missing for 4 mothers.

^cAssets owned by the household were missing for 4 families.

^dP-values are for comparison of results between 23 and 21 children.