There were no significant differences in the five DQ scores between the early-pregnancy treatment and late-pregnancy treatment groups (p > 0.05) ( Table 4). There were also no significant differences in developmental delay between those children prenatally exposed to LdT and the controls (p > 0.05). There were differences in the combined developmental delay and suspicion of developmental delay between those children prenatally exposed to LdT and the controls (p < 0.05) ( Table 5).