结果干预组智力及精神运动发育指数明显高于非干预组（P<0.05，<0.001），而与正常对照组比较无明显差异（P>0.05）；

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).

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结果干预组智力及精神运动发育指数明显高于非干预组（P<0.05，<0.001），而与正常对照组比较无明显差异（P>0.05）；

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).

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