Journal
JOURNAL OF PEDIATRICS
Volume 160, Issue 4, Pages 578-+Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jpeds.2011.09.025
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Objective To analyze risk factors for bronchopulmonary dysplasia (BPD) or death according to the condition leading to extremely preterm birth, preterm labor, or vascular disorders. Study design Retrospective study of all premature births before 28 weeks of gestation in a single Level III institution. Mother/infants were attributed to the pretermlabor or vascular disorder group according to the condition leading to delivery. Characteristics and outcomes were compared between groups. Independent risk factors for BPD or the composite outcome BPD or death were identified within each group. Results Three hundred ninety-six infants from 349 pregnancies were characterized for perinatal characteristics. BPD was significantly more frequent in the vascular disease group than in the preterm labor group (29% vs 11%, P < .01). Independent risk factors of BPD were a low gestational age in the preterm labor group and severe growth restriction in the vascular disease group. Conclusion Classification of preterm birth according to the condition leading to delivery might help to reduce confounding of risk factors for BPD. Intrauterine vascular disorders are significantly associated with BPD. (J Pediatr 2012;160:578-83).
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