Table 2. Comparison of the BSID index scores and developmental quotients between the two study groups.

Values are presented as mean±standard deviation.

BSID, Bayley Scales of Infant and Toddler Development; VEP, visual evoked potential; MDI, mental developmental index; PDI, psychomotor developmental index; DQ, developmental quotients.

^*p<0.05 by Mann-Whitney U-test.