title: Latent class analysis shows that paediatricians' opinions about the advanced resuscitation of extremely preterm infants were diverse and influenced by personal beliefs.
abstract: OBJECTIVE
  The aim of this study was to survey paediatricians, who taught neonatal resuscitation in Brazil, about when they would apply advanced resuscitation in the delivery room for newborn infants born at 23-26 weeks of gestational age.
  
  
  METHODS
  This cross-sectional study focused on an electronic questionnaire that was sent to paediatricians who acted as instructors for the Brazilian Neonatal Resuscitation Program from December 2011 to September 2013. The primary outcome was the gestational age at which the respondent would apply advanced resuscitation in the delivery room. Latent class analysis identified the profiles of the instructors, and logistic regression identified the variables associated with belonging to one of the derived classes.
  
  
  RESULTS
  The 560 (82%) instructors who agreed to participate fell into three latent classes: pro-resuscitation, intermediate and pro-limitation, with high, intermediate and low probabilities of performing advanced resuscitation in neonates born at 23-26 weeks. In the multivariate model, group membership was associated with the paediatrician's age, years of practice and personal importance of religion and the patient's birthweight, future quality of life and probability of death.
  
  
  CONCLUSIONS
  The opinions of paediatricians performing advanced resuscitation on extremely preterm infants in the delivery room were diverse and influenced by personal beliefs.
authors.affiliation: Escola Paulista de Medicina - Universidade Federal de São Paulo, São Paulo, SP, Brazil.|Paediatrics, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil.
authors.forename: Cristiane Ribeiro
authors.initials: CR
authors.lastname: Ambrósio
authors.affiliation: Biostatistics, Escola Paulista de Medicina - Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Adriana
authors.initials: A
authors.lastname: Sanudo
authors.affiliation: Paediatrics, Neonatal Division, Escola Paulista de Medicina - Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Maria Fernanda Branco
authors.initials: MF
authors.lastname: de Almeida
authors.affiliation: Paediatrics, Neonatal Division, Escola Paulista de Medicina - Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Ruth
authors.initials: R
authors.lastname: Guinsburg
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D005865:Gestational Age; D006801:Humans; D062071:Infant, Extremely Premature; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D000072156:Neonatologists / Q000523:psychology* / Q000592:standards / Q000706:statistics & numerical data; D012151:Resuscitation / Q000523:psychology* / Q000592:standards / Q000706:statistics & numerical data; D016414:Resuscitation Orders; D013223:Statistics as Topic
keywords: Advanced resuscitation; Decision-making; Ethics; Extremely preterm infants; Gestational age