Abstract: Objective To investigate the related factors affecting the degree of anemia of preterm infants. Methods The clinical data of 167 preterm infants within 24 hours after birth admitted to the department of neonatology in Zhuhai Women and Children's Hospital from June 2012 to June 2013 were collected.The preterm infants were classified into two groupsmild to moderate anemia group and severe anemia group.All clinical data were analyzed by single factor analysis and Logistic regression. Results The birth weight,gestational age of the severe anemia group were significantly lower than the mild to moderate anemia group,the difference was statistically significant (P<0.01).The length of hospital stay,iatrogenic blood loss were obviously higher than the mild to moderate anemia group,the difference was statistically significant (P<0.01).The birth weight and the length of hospital stay were risk factors of severe anemia. Conclusions The degree of anemia is associated with the birth weight,gestation age,length of hospital stay and iatrogenic blood loss.The birth weight and the length of hospital stay are independent risk factors of severe anemia in preterm infants.

Key words: anemia of preterm infants, gestational age, iatrogenic blood loss, birth weight

摘要： 目的 通过回顾性研究,对影响早产儿贫血程度的相关因素进行分析。方法 收集2012年6月-2013年6月期间生后24 h内收入珠海市妇幼保健院新生儿科并在住院期间出现贫血的167例早产儿的临床资料,分为轻-中度贫血组和重度贫血组,利用单因素分析和Logistic回归分析对影响早产儿贫血程度的相关因素进行分析。结果 重度贫血组出生体重、胎龄明显低于轻-中度贫血组,差异有统计学意义(P<0.01),而住院时间、采血量明显高于轻-中度贫血组,差异有统计学意义(P<0.01)。出生体重和住院时间是发生重度贫血的危险因素。结论 出生体重、胎龄、住院时间以及采血量均与早产儿贫血程度有关。其中出生体重和住院时间是早产儿重度贫血的独立危险因素。

关键词: 早产儿贫血, 胎龄, 医源性失血, 出生体重