Abstract: Objective To understand the cognitive ability of school-age children with very low birth weight. Method The 30 cases of school age children with very low birth (after correcting for gestational age) weight evaluated by Das-Naglieri cognitive assessment system and compared with 50 cases of normal full-term children. Results The sum score of the planning scale and the simultaneous processing scale also the following the processing time and the attention scale and total score of DN-CAS in very low birth weight children were lower than those in normal full-term children,the differences were statistically significant (P<0.05). Conclusion The healthy surviving children with very low birth weight in the early school age had normal cognitive abilities,but significantly behind the normal full-term children of the same age,mainly in information encoding process,and the information encoding process and linking attention capabilities.

Key words: Naglieri Cognitive Ability and Assessment System Evaluation, children with the very low birth weight, school age, cognitive function

摘要： 目的 了解极低出生体质量儿学龄期认知功能状况。方法 应用Das-Naglieri认知评估系统对30例极低出生体重儿学龄期(纠正胎龄后)进行认知功能状况的评估，并以同龄的正常足月儿50名作为对照组进行分析;结果 极低出生体重儿在计划量表分总和、同时性加工量表分总和、继时性加工量表总和、注意量表分总和与DN-CAS认知评估总量表分均低于同龄的正常足月儿，差异有统计学意义(P＜0.05)。结论 健康存活的极低出生体重儿在学龄期初期具有正常的认知能力，但明显落后于同龄的正常足月儿，主要在信息编码过程、以及将注意和信息编码过程联系起来的能力方面。

关键词: Das-Naglieri认知评估系统, 极低出生体重儿, 学龄期, 认知功能