title: Prelinguistic behavior of infants of assisted reproductive techniques.
abstract: OBJECTIVE
  The aim of this study is assessment of effects of different assisted reproductive techniques (ART) like in vitro fertilization (IVF) and intra cytoplasmic sperm injection (ICSI) on prelinguistic behavior of infants conceived by these techniques.
  
  
  METHODS
  In this descriptive, cross sectional study, prelinguistic behavior of 151 full term ART infants of Royan Institute have been assessed in Children's Health and Development Research Center of Tehran from August 2007 until August 2009. Questionnaires were completed by parents at 9 months old. The questionnaire was standard according to Early Language Milestone Scale-2 (ELM-2). Data were analyzed by SPSS version 16 and using chi-square test.
  
  
  RESULTS
  Twenty-two (14.5%) of infants were conceived by IVF and 129 (85.4%) by ICSI. Number of infants with delay in reduplicated babbling in ICSI method was more than in IVF. There was only a significant difference in echolalia delay in the two sexes. Echolalia was delayed more in boys. Delay of reduplicated babbling was more in infants of younger mothers. There was no relation between speech and language defect of parents and infants.
  
  
  CONCLUSIONS
  This study showed that prelingustic behavior of ART infants are affected by kind of ART method, infant sex, and mother's age at the time of pregnancy.
authors: Child Health Research Department of Iran Medical Sciences Branch of Academic Center for Education, Culture and Research, Tehran, Iran.
authors: Soudabeh
authors: S
authors: Noori
authors: Leila
authors: L
authors: Nedaeifard
authors: Zahra
authors: Z
authors: Agarasouli
authors: Jalil
authors: J
authors: Koohpaiehzadeh
authors: Ramin Mozafari
authors: RM
authors: Kermani
authors: Abolhasan Shahzadeh
authors: AS
authors: Fazeli
keywords: Assisted Reproductive Techniques; Behavior; In Vitro Fertilization; Infants; Linguistic