Objective To investigate the clinical manifestations and inlfuencing factors in the newborns with coagulant function abnormality in the ifrst 24 hours after birth. Methods The coagulation test results and clinical data of 169 newborns in our hospital were studied. Children receiving anticoagulant therapy were assigned as coagulation abnormalities group (n=76) and other healthy newborns were assigned as control group (n=93). The differences of coagulation function between the two groups were analyzed and the inlfuencing factors of coagulation abnormalities were explored. Results The proportions of fetal distress, pneumonia, acidosis and hypothermia of coagulation abnormalities group were signiifcantly higher than that of the control group (χ2=6.18–38.01, P<0.05). Logistic regression analysis showed that fetal distress (OR=12.06, 95%CI:3.71–39.25), pneumonia (OR=4.10, 95%CI: 1.43–11.74) were the high risk factors for coagulant function abnormality, and the differences were statistically signiifcant (both P<0.05). Conclusions Fetal distress, pneumonia were the high risk factors for coagulant function abnormality. Early prevention can help to reduce the incidence of neonatal hemorrhagic disease.%目的：分析出生后24 h凝血功能异常新生儿的临床表现及影响因素。方法收集169例住院新生儿的凝血功能检查结果及临床资料，其中符合接受抗凝治疗的患儿共76例，另93例新生儿作为对照，分析凝血功能异常组与对照组凝血功能的差异，并分析凝血障碍相关危险因素。结果凝血功能异常组的宫内窘迫、肺炎、酸中毒及低体温的比例均高于对照组，差异均有统计学意义(χ2=6.18~38.01，P<0.05)。多元logistic回归分析显示，宫内窘迫(OR=12.06，95%CI：3.71~39.25)、肺炎(OR=4.10，95%CI：1.43~11.74)为新生儿凝血功能异常发生的独立危险因素(P均<0.05)。结论宫内窘迫、肺炎是新生儿凝血功能异常的危险因素，提前预防有助于减少新生儿出血性疾病的发生。
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