Table IV.

Association between birth weight quintiles and quintiles of birth weight residuals^* and CIMT in the CHS CIMT study population and subsamples

	Main model† Full sample, N = 670			Main model‡ Full sample, N = 670
	CIMTd	95% CI	P value		CIMTd	95% CI	P value
Birth weight (unit: 100 g)	0.0007	0.0001–0.0014	.026	Birth weight residuals* (unit: 100 g)	0.0019	0.0004–0.0035	.0014
Birth weight quintiles, g				Quintiles of birth weight residuals‡
1: 709–3005	0.0054	−0.005 to 0.016	.32	Quintile residual 1	Reference
2: 3010–3317	0.0018	−0.009 to 0.012	.74	Quintile residual 2	0.0053	−0.005 to 0.016	.322
3: 3320–3544		Reference		Quintile residual 3	0.0121	0.002–0.023	.024
4: 3545–3830	0.0057	−0.005 to 0.016	.27	Quintile residual 4	0.0094	−0.001 to 0.020	.077
5: 3840–5216	0.0135	0.0032–0.024	.01	Quintile residual 5	0.0181	0.008–0.029	.001

CIMTd, difference in carotid artery intima-media thickness (mm); g, range of actual birth weight of study participants in each quintile.

^*Residuals of birth weight regressed on gestational age and sex.

^†Adjusted for child’s age at carotid artery IMT scan, sex, BMI, systolic blood pressure, asthma status, race/ethnicity, delivery mode, maternal pregnancy complications, income, and study area.

^‡Main model without sex.