title: Risk factors and outcomes for retinopathy of prematurity in neonatal infants with a birth weight of 1,501-2,000 g in a Chinese Neonatal Unit.
abstract: OBJECTIVE
  To determine the risk factors and outcomes of retinopathy of prematurity (ROP) in infants with a birth weight of 1,501-2,000 g.
  
  
  METHODS
  Clinical characteristics and risk factors were compared and nonconditional logistic regression analysis was performed to determine independent predictors for ROP.
  
  
  RESULTS
  There were 54 (9.8%) cases of ROP in 553 patients with a birth weight of 1,501-2,000 g. The most common classification of ROP was in stage 1 (50/54, 92.6%; stages 2 and 3 ROP: 2 infants each). By logistic regression analysis, the following factors independently predicted ROP: gestational age at birth ≤ 34 weeks [odds ratio (OR): 9.01; 95% confidence interval (CI): 1.18-68.70], septicemia (OR: 2.88; 95% CI: 1.30-6.36) and perinatal asphyxia (OR: 5.74; 95% CI: 2.35-14.01).
  
  
  CONCLUSIONS
  ROP occurred commonly among infants with a birth weight of 1,501-2,000 g. The risk factors were gestational age at birth ≤ 34 weeks, septicemia and perinatal asphyxia.
authors: Departments of Ophthalmology and Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
authors: Mei-Hong
authors: MH
authors: Gu
authors: Ji
authors: J
authors: Jin
authors: Tian-Ming
authors: TM
authors: Yuan
authors: Hui-Min
authors: HM
authors: Yu
mesh_terms: D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal; D016015:Logistic Models; D011379:Prognosis; D012178:Retinopathy of Prematurity / Q000145:classification / Q000453:epidemiology*; D012307:Risk Factors; D014787:Vision Tests