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为了探讨胆红素水平对早产儿智力远期影响，对２８３例黄疸早产儿在５－８岁时进行智商测定。结果显示：１２１例（４２．７６％）有程度不同的ＩＱ低下（ＩＱ≤７０），胆红素峰值越高，ＩＱ异常率越高（除３４２ｍｍｏｌ／Ｌ～组与２０４ｍｍｏｌ／Ｌ～及２７５ｍｍｏｌ／Ｌ～组比较无显著性差异外，其它各组比较均有显著性差异）。其中ＩＱ小于５５的早产儿２９例（１０．２５％），合并有高危因素明显高于ＩＱ小于７０组（除３４２ｍｍｏｌ／Ｌ～组外，其它各组均有显著性差异）。提示：早产儿远期智力低下与胆红素峰值有关，同时受体重小于１５００ｇ、新生儿期感染、缺氧、酸中毒、低蛋白血症等高危因素影响。
In order to explore the long-term effects of bilirubin on the intelligence of premature children, 283 preterm infants with jaundice were measured at 5-8 years old. The results showed that 121 cases (42.76%) had different degree of IQ (IQ≤70), the higher the bilirubin peak, the higher the rate of IQ abnormality (except 342mmol / L ~ group and 204mmol / L ~ L ~ group was no significant difference, the other groups were significantly different). Among them, 29 (10.25%) preterm infants with IQ less than 55 had significantly higher risk factors than those with IQ less than 70 (all other groups except 342mmol / L ~). Tip: The long-term mental retardation in preterm infants and bilirubin peak related to the same time by the body weight less than 1500g, neonatal infection, hypoxia, acidosis, hypoproteinemia and other risk factors.