Factors associated with survival of very-low-birth-weight infants in a Brazilian fee-paying maternity in the 1990s

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dc.contributor.authorBernardes de Mello, Filomena
dc.contributor.authorBranco de Almeida, Maria Fernanda
dc.contributor.authorDos Santos, Amelia Miyashiro [UNIFESP]
dc.contributor.authorPaula Fiod Costa, Helenilce de
dc.contributor.authorMiyoshi, Milton Harumi
dc.contributor.authorAmaro, Eduardo Rahme
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionSanta Joana Hosp & Matern
dc.date.accessioned2016-01-24T13:48:48Z
dc.date.available2016-01-24T13:48:48Z
dc.date.issued2007-06-01
dc.description.abstractThis study describes intra-hospital survival rates of very-low-birth-weight infants, as well as factors present at birth associated with survival, during a period of 10 years. This is a Retrospective cohort study performed in a 3rd level nursery at Santa Joana Maternity Hospital, a fee-paying institution in São Paulo, Brazil. From January 1991 to December 2000, 963 live-born infants with a birth weight of 500-1499 g, without congenital anomalies, were followed until discharge. Survival was studied according with year of birth, and stratified by birth weight and gestational age. Factors present at birth associated with survival were analyzed by logistic regression. Patient characteristics were: birth weight 500-999 g (38%), gestational ages <= 27 weeks (32%), prenatal care (100%), small for gestational age (39%), multiple gestation (22%), male (52%) and C-section (68%). According to birth weight 500-749, 750-999, 1000-1249 and 1250-1499 g, survival rate in 1991 was, respectively, 0, 6,60 and 80% and increased to 15, 71, 93 and 96% in 2000. Regarding gestational age of 24-25 weeks, 26-27 weeks and 28-31 weeks, intra-hospital survival in 1991 was 0, 0 and 57%, and in 2000, improved to 44, 74 and 82%. Survival was associated with increasing birth weight (OR 0.996; CI 95%: 0.995-0.997) and gestational age (OR 0.73; CI 95%: 0.67-0.80), female gender (OR 1.52; CI 95%: 1.04-2.22) and year of birth (OR 0.70; CI 95%: 0.65-0.76). in the 1990s, survival rates among very-low-birth-weight infants improved according to year of birth, mainly in female patients with birth weight >= 750 g, and gestational age >= 26 weeks.en
dc.description.affiliationUniversidade Federal de São Paulo, Div Neonatol Med, Dept Pediat, São Paulo, Brazil
dc.description.affiliationSanta Joana Hosp & Matern, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Div Neonatol Med, Dept Pediat, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent153-157
dc.identifierhttp://dx.doi.org/10.1093/tropej/fml082
dc.identifier.citationJournal of Tropical Pediatrics. Oxford: Oxford Univ Press, v. 53, n. 3, p. 153-157, 2007.
dc.identifier.doi10.1093/tropej/fml082
dc.identifier.issn0142-6338
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/29810
dc.identifier.wosWOS:000247426200003
dc.language.isoeng
dc.publisherOxford Univ Press
dc.relation.ispartofJournal of Tropical Pediatrics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.oxfordjournals.org/access_purchase/self-archiving_policyb.html
dc.subjectvery-low-birth-weight infanten
dc.subjectpremature infanten
dc.subjectsurvival rateen
dc.subjectneonatal mortalityen
dc.subjectfetal viabilityen
dc.titleFactors associated with survival of very-low-birth-weight infants in a Brazilian fee-paying maternity in the 1990sen
dc.typeinfo:eu-repo/semantics/article
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