Table 3.

Regression of heart rate on birth weight, adjusted for covariates, in black and white children, adolescents, and adults.

	White		Black		Total
	β	P Value	β	P Value	β	P Value
Childhood (n=2344)
Black race					−4.21	<0.001
Age	−1.16	<0.001	−1.17	<0.001	−1.16	<0.001
Female sex	2.73	<0.001	3.67	<0.001	3.11	<0.001
Birth weight a	−0.55	0.320	0.17	0.792	−0.25	0.552
Adolescence (n=1622)
Black race					−3.81	<0.001
Age	−1.63	<0.001	−1.34	<0.001	−1.51	<0.001
Female sex	3.65	<0.001	6.32	<0.001	4.75	<0.001
Birth weight a	−0.72	0.292	−0.87	0.243	−0.76	0.130
Adulthood (n=2316)
Black race					−1.07	0.013
Age	−0.11	<0.001	−0.02	0.527	−0.08	<0.001
Female sex	4.27	<0.001	4.97	<0.001	4.51	<0.001
Birth weight a	−1.17	0.031	−1.06	0.164	−1.16	0.008

^aGestational age-adjusted birth weight.

β=regression coefficient