Ramathibodi Language Development Questionnaire: A Newly Developed Screening Tool for Detection of Delayed Language Development in Children Aged 18-30 Months Jariya Chuthapisith MD, MMedSci*, Pornchanok Wantanakorn MD*,**, Rawiwan Roongpraiwan MD*
* Division of Developmental and Behavioural Pediatrics, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand ** Chakri Naruebodindra Medical Institute, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
Affiliation :
Objective : To develop a parental questionnaire for screening children with delayed language development in primary care
settings.
Material and Method: 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 (6.71.9), comparing with the typically
developing group (9.60.7). 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).
Conclusion : The RLD questionnaire was the promising language developmental screening instrument that easily utilized
in well-child examination settings.
Keywords : Children, Language development, Questionnaire, Screening
