Fig. 1. Follow-up data of the K-DST scores. The numbers of infants and children show that the follow-up results were different, either normalized or newly screened as delayed, from the previous results. n, number of cases; K-DST, Korean-Development Screening Test for Infants and Children; Below -1SD: the further evaluation group + the follow-up test group, Above -1SD: the peer-level + the high-level.
