Metal development index(MDI)and the psychomotor development index(PDI) comparatively divergence marked (P<0. 01).
智力发育指数和运动发育指数比较,差异显著(P<0.01)。
2
Results Mental development index(MDI) and physical development index(PDI) in early interventional group were significant higher than those in group 2(P<0.05, < 0.001).
The mental development index (MDI) and the psychomotive development index (PDI) at 18 months in the intervention group were much higher than those of the control group (P <0. 001 ).