Adjusted linear regression	N	ERC	P value	N	ERC	P value	N	ERC	P value
Far wall mean IMT, mm	1365	0.08	0.02	1183	0.11	0.004	182	−0.01	0.88
Far wall maximum IMT, mm	1365	0.04	0.05	1183	0.05	0.04	182	0.01	0.80
Carotid artery distensibility, %	1249	0.27	<0.001	1101	0.29	<0.001	148	0.08	0.48
Carotid artery elasticity, %/mm Hg	1127	0.16	0.002	999	0.15	0.004	128	0.25	0.13

Non-biological caregivers were excluded from these analyses (n=13). Covariates in adjusted linear regression models include parent and child age, parent and child height, child lumen diameter (for carotid IMT only), Disadvantage Index and child sex.
Disadvantage Index: the Index of Relative Socioeconomic Disadvantage.
N: number of participants in cohort with this measure.
CC, correlation coefficient; ERC, estimated regression coefficient; IMT, intima–media thickness.