![]() A study found sensitivity of 80% if 'questionable scores' were included with abnormal scores but specificity of 46%. Sometimes DDST results are interpreted as normal, suspect, questionable (these children cannot pass some items that 75–95% of age matched children could pass them) and untestable. Screening by it produces 3 scores: normal, suspect and untestable (these children refused parti-cipating in some items that 95% of age matched children could pass them). DDST-II assesses child's development in 4 general areas: 1) personal–social (25 items), 2) fine motor- adaptive (29 items), 3) language (39 items), and 4) gross motor (32 items). Although there is doubt about its limited specificity (43%) and risks of over referral, it has high rate of sensitivity (83%) and identifies children with developmental delays. DDST-II is a brief and validated screening tool that many of pediatricians are familiar with it.
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