智力发育指数和运动发育指数比较，差异显著（P<0．01）。

Metal development index(MDI)and the psychomotor development index(PDI) comparatively divergence marked (P<0. 01).

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与安慰剂组相比，氢化可的松组智力发育指数评分在70分以下者很少，有物体恒存性意识的婴儿更多。

Fewer infants on hydrocortisone treatment had a Mental Development Index score below 70, and more of them had a greater awareness of object permanence than infants on placebo.

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两组在18个月龄的智力发育指数（MDI），运动发育指数（PDI）干预组明显高于对照组（P〈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 ).

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