title: Maternal preeclampsia protects preterm infants against severe retinopathy of prematurity.
abstract: OBJECTIVE
  To study the influence of maternal preeclampsia on the occurrence of retinopathy of prematurity.
  
  
  METHODS
  A prospective cohort study of 324 preterm neonates with birth weight ≤ 1500 g and gestational age ≤ 32 weeks. Multiple maternal and perinatal factors were analyzed for association and confounding by multiple logistic regression analysis.
  
  
  RESULTS
  Mean birth weight was 1128 ± 240 g, and mean gestational age 29.7 ± 1.9 weeks. Twenty-four newborns (7.4%) had severe retinopathy of prematurity; 97 had any stage of retinopathy, and 227 had no retinopathy of prematurity. Preeclampsia and complete antenatal steroid treatment course reduced the risk for any stage of retinopathy of prematurity by 60% and 54%, respectively. Preeclampsia reduced the risk for severe retinopathy of prematurity by 80%.
  
  
  CONCLUSIONS
  Preeclampsia lowered the risk for occurrence of any stage and severe retinopathy of prematurity in very low birth weight infants.
authors.affiliation: Department of Pediatrics and Ophthalmology, Newborn Section, Universidade Federal do Rio Grande do Sul and Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil.
authors.forename: João Borges
authors.initials: JB
authors.lastname: Fortes Filho
authors.forename: Marlene C
authors.initials: MC
authors.lastname: Costa
authors.forename: Gabriela U
authors.initials: GU
authors.lastname: Eckert
authors.forename: Paula G B
authors.initials: PG
authors.lastname: Santos
authors.forename: Rita C
authors.initials: RC
authors.lastname: Silveira
authors.forename: Renato S
authors.initials: RS
authors.lastname: Procianoy
mesh_terms: D001938:Brazil / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007234:Infant, Premature; D019102:Infant, Very Low Birth Weight; D016015:Logistic Models; D008297:Male; D011225:Pre-Eclampsia / Q000453:epidemiology*; D011247:Pregnancy; D011446:Prospective Studies; D012178:Retinopathy of Prematurity / Q000453:epidemiology*