Soheila Shahshahani - Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Roshanak Vameghi - Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Nadia Azari - Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Firoozeh Sajedi - Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Anooshirvan Kazemnejad - Tarbiat Modares University, Tehran, Iran.

Objectives: This research was performed to compare the results of two parental-based developmental questionnaires. Methods: In this study the developmental status of ۱۹۶, ۴-۶۰ months old children were screened using Ages and Stages Questionnaires (ASQ) and prescreening developmental Questionnaire (PDQ) in ۴ primary health care clinics in Tehran. Convenient sampling was used. Data was analyzed by SPSS software. Results: Using ASQ ۱۸% of children were detected as having developmental disorders. Developmental screening with PDQ showed that developmental delay or doubtful condition was seen in ۲۰% and ۱۹% of children respectively. The estimated consistency coefficient between PDQ II and ASQ for fine and gross motor domains was ۰.۰۵ and ۰.۲۴, and for language and personal-social issues were ۰.۱۸ and ۰.۰۶, respectively. Based on two different categorizing possibilities for questionable scores of PDQ-II, that is, "delayed" or "normal", the total agreement coefficient between two questionnaires were determined ۰.۳۰ and ۰.۲۰, respectively Discussion: The process of developmental screening was changed in recent years and performing a correct and useful developmental screening is easier today. Several screening tools are available now. Recent studies showed that parental information about their child’s development have good accuracy. For selecting a suitable tool we must consider the validity, reliability, sensitivity, specificity and all other positive and negative points about the tool of the test. Conclusion: This study showed that the results of developmental screening of ۴-۶۰ months old children in Tehran using ASQ and PDQ lead to different results. This is necessary that the results of screening are compared with a diagnostic gold standard test.

Developmental screening, ASQ, PDQ