Journal
JOURNAL OF PEDIATRICS
Volume 156, Issue 1, Pages 54-U91Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jpeds.2009.07.022
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Objective We hypothesized that, as compared with a matched control group born at term, young adults with very low birth weight (VLBW < 1.5 kg) would have higher 24-hour ambulatory blood pressure. Study design We studied 118 18- to 27-year-old subjects born with VLBW within the greater Helsinki area and 120 term-born control subjects with similar age, sex, and birth hospital. The mean birth weight for VLBW subjects was 1.1 kg (standard deviation [SD], 0.2) and for controls, 3.6 kg (SD, 0.5). Gestational ages were 29.2 (SD, 2.3) and 40.1 (SD, 1.0) weeks. Current education of higher-educated parents served as an indicator of childhood socioeconomic status. Ambulatory blood pressure was measured during a 24-hour period with an oscillometric device (Spacelabs 90207). Results VLBW subjects had, with sex, age, and body mass index adjustment, a 2.4 mm Hg (95% confidence interval, 0.2 to 4.6) higher 24-hour systolic pressure. We found hypertension in 11 VLBW subjects and in 3 term-born subjects, giving an adjusted odds ratio of 4.0 (1.1 to 14.8). When socioeconomic status was taken into account, results remained unchanged. Conclusions Higher rates of hypertension and higher 24-hour blood pressure among young adults with VLBW may indicate higher risk for adverse cardiovascular outcomes. (J Pediatr 2010; 156: 54-9).
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