title: [Detection of intrauterine fetal growth of twins].
abstract: OBJECTIVE
  To investigate how to detect intrauterine fetal growth of twins with height of uterine fundus.
  
  
  METHODS
  This study was a randomized coupling trial. 75-couples of twins and single gestation were involved. Linear regression analysis was made after correcting the uterine height of single gestation.
  
  
  RESULTS
  If each of twins develops as the same as single gestation, the relationship in uterine height between twins and single gestation can be described as a correlation equation: y = 1.26x + 1.3 (R2 = 0.656, r = 0.81, P < 0.001). The regression coefficient is 1.26, which is very closed to 3 square root of 2. According to the correlation equation, we made a table to forecast the uterine height of twins and single gestation in different gestational age.
  
  
  CONCLUSIONS
  The ralationship in the uterine height between twins and single gestation can be used to predict intrauterine fetal growth of twins.
authors.affiliation: First Affiliated Hospital, Sun Yat-Sen University of Medical Science, Guangzhou.
authors.forename: Z
authors.initials: Z
authors.lastname: You
authors.forename: S
authors.initials: S
authors.lastname: Huang
authors.forename: D
authors.initials: D
authors.lastname: Li
mesh_terms: D000328:Adult; D000886:Anthropometry; D001724:Birth Weight; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D016014:Linear Models; D011247:Pregnancy; D011897:Random Allocation; D012016:Reference Values; D014427:Twins; D014599:Uterus / Q000033:anatomy & histology*