Journal
AMERICAN JOURNAL OF EPIDEMIOLOGY
Volume 170, Issue 7, Pages 819-828Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/aje/kwp206
Keywords
cerebral palsy; cervix uteri; fetal membranes, premature rupture; infant, premature; leukomalacia, periventricular; obstetric labor, preterm; pre-eclampsia; steroids
Categories
Funding
- National Institutes of Health, National Institute of Neurological Disorders and Stroke [U01 NS 400069-01]
- Women's Reproductive Health Research program, National Institute of Child Health and Development [K12 HDO1255]
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In a 2002-2004 prospective cohort study of deliveries of infants at <28 weeks at 14 US centers, the authors sought the antecedents of white matter damage evident in newborn cranial ultrasound scans (ventriculomegaly and an echolucent lesion) and of cerebral palsy diagnoses at age 2 years. Of the 1,455 infants enrolled, those whose mothers received an antenatal steroid tended to have lower risks of ventriculomegaly and an echolucent lesion than their peers (10% vs. 23%, P < 0.001 and 7% vs. 11%, P = 0.06, respectively). Risk of ventriculomegaly was increased for infants delivered because of preterm labor (adjusted odds ratio (OR) = 2.3, 95% confidence interval (CI): 1.1, 4.9), preterm premature rupture of fetal membranes (OR 3.6, 95% CI: 1.5, 8.7), and cervical insufficiency (OR = 2.8, 95% CI: 1.4, 5.5) when compared with infants delivered because of pre-eclampsia. Risk of an echolucent lesion was increased for infants delivered because of preterm labor (OR = 2.7, 95% CI: 1.2, 5.7) and intrauterine growth retardation (OR = 3.3, 95% CI: 1.2, 9.4). The doubling of diparesis risk associated with preterm labor and with preterm premature rupture of fetal membranes did not achieve statistical significance, nor did the doubling of quadriparesis risk and the tripling of diparesis risk associated with cervical insufficiency.
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