title: Ramathibodi Language Development Questionnaire: A Newly Developed Screening Tool for Detection of Delayed Language Development in Children Aged 18-30 Months.
abstract: OBJECTIVE
  To develop a parental questionnaire for screening children with delayed language development in primary care settings.
  
  
  METHODS
  Ramathibodi Language Development (RLD) questionnaire was developed and completed by groups of 40 typically developing children age 18 to 30 months old and 30 children with delayed language development.
  
  
  RESULTS
  The mean score was significantly lower in the delay language group (6.7 ± 1.9), comparing with the typically developing group (9.6 ± 0.7). The optimal ROC curve cut-off score was 8 with corresponding sensitivity and specificity were 98% and 72%, respectively. The corresponding area under the curve was 0.96 (95% CI = 0.92-0.99).
  
  
  CONCLUSIONS
  The RLD questionnaire was the promising language developmental screening instrument that easily utilized in well-child examination settings.
authors.forename: Jariya
authors.initials: J
authors.lastname: Chuthapisith
authors.forename: Pornchanok
authors.initials: P
authors.lastname: Wantanakorn
authors.forename: Rawiwan
authors.initials: R
authors.lastname: Roongpraiwan
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007802:Language; D007805:Language Development Disorders / Q000175:diagnosis* / Q000208:ethnology; D008297:Male; D010290:Parents; D012372:ROC Curve; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires; D013785:Thailand