体重≤１０００ｇ的超低出生体重（ＥＬＢＷ）儿生存率的增长已使人们注意到他们在儿童时期的行为问题．在几个国家有关不同年龄ＥＬＢＷ儿的评价研究中，调查者已记录了这些儿童发生频率较高的行为问题，但缺乏不同文化背景的比较．该文目的是比较四个国家同年龄ＥＬＢＷ儿的 The growth of child survival rates for very low birth weight (ELBW) weighing <1000g has drawn attention to their behavioral problems in childhood. In several countries’ evaluations of ELBW children of different ages, investigators have documented behavioral problems with a high frequency of these children, but lacking comparisons of different cultural backgrounds. The purpose of this article is to compare ELBW children of the same age in four countries