Consistency of Ethnic Differences in Children's Pressor Reactivity 1987 to 1992

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In this prospective investigation, all children enrolled in the public third-grade classrooms of an entire county (n=474) had blood pressure measured both at rest and during a stressful television video game. Examinations were repeated in 4 subsequent years when cohort children as well as newly enrolled children were in grades 4, 5, 7, and 8. Both crosssectional and longitudinal analyses indicated that black children demonstrated significantly greater systolic and diastolic pressor reactivity than white children. These data suggest that ethnic differences in children's pressor reactivity presage ethnic differences in adulthood hypertension.

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