title: [Frequency of retinopathy of prematurity in newborns at the Clinical Hospital, Ribeirão Preto Medical School, University of São Paulo].
abstract: OBJECTIVE
  To determine the frequency of retinopathy of prematurity at the Clinical Hospital of Ribeirão Preto Medical School (HCFMRP-USP) and verify the association of retinopathy of prematurity with known risk factors.
  
  
  METHODS
  Prospective analysis of 70 patients born in the HCFMRP-USP, weighing less than 1,500 grams, in a period of 1 year. The patients were divided into 2 groups (Retinopathy of prematurity and Normal) to verify the association of retinopathy of prematurity and known risk factors. Significance level of 5% was used.
  
  
  RESULTS
  The frequency of retinopathy of prematurity was 35.71% among the study population. The studied risk factors significantly related to the development of the disease were: weight (p=0.001), gestational age (p=0.001), score SNAPPE II (p=0.008), use of oxygen by intubation (p=0.019) and continuous positive airway pressure (p=0.0017), multiple blood transfusions (p=0.01), and the use of diuretics (p=0.01).
  
  
  CONCLUSIONS
  The frequency of retinopathy of prematurity was 35.71% and several risk factors have been identified in newborns in the HCFMRP-USP, being evidenced that the more preterm, the more severe retinopathy of prematurity is likely to be.
authors.affiliation: Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo - Ribeirão Preto (SP) - Brasil. rogerns@gmail.com
authors.forename: Rogério Neri
authors.initials: RN
authors.lastname: Shinsato
authors.forename: Letícia
authors.initials: L
authors.lastname: Paccola
authors.forename: Walusa Assad
authors.initials: WA
authors.lastname: Gonçalves
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Barbosa
authors.forename: Francisco Eulógio
authors.initials: FE
authors.lastname: Martinez
authors.forename: Maria de Lourdes Veronese
authors.initials: Mde L
authors.lastname: Rodrigues
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Jorge
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight; D011446:Prospective Studies; D012178:Retinopathy of Prematurity / Q000453:epidemiology*; D012307:Risk Factors; D012720:Severity of Illness Index