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目的：观察急性ST段抬高型心肌梗死（STEMI）患者血红细胞体积分布宽度（RDW）水平，探讨RDW与STEMI患者近期预后的关系。方法选择STEMI患者228例，根据基线RDW四分位数分为≤12.6%组（A组）54例，12.7%～13.1%组（B组）56例，13.1%～13.5%组（C组）48例，≥13.5%组（D组）70例。对四组1个月内主要不良心血管事件（MACE）进行统计分析，采用Logistic回归分析STEMI患者MACE的独立影响因素之间的关系。结果随着RDW值逐步升高，MACE发生率也逐步升高。Logistic回归分析示，RDW（OR=2.351，95%CI：1.156～4.781，P=0.018）、年龄（OR=0.926，95%CI：0.859～0.997，P=0.042）、CRP（OR=1.151，95%CI：1.048～1.265，P=0.003）、Cr（OR=0.962，95%CI：0.925～1.000，P=0.013）、cTnI（OR=0.887，95%CI：0.808～0.974，P=0.012）是STEMI 1个月内发生MACE的独立危险因素。结论 RDW是STEMI患者近期预后的危险因素。“,”Objective To study the relationship between RDW and the short-term outcomes in STEMI patients.Methods 228 STEMI patients were divided into four groups:≤12.6% group (group A), 54 cases, 12.7%~ 13.1% group (group B), 56 cases, 13.1%~ 13.5% group (group C), 48 cases,≥13.5% group (group D), 70 cases to observe cardiovascular events within one month, and analyze the relationship between the independent impact factors by Logistic regression.ResultsAs the RDW values gradually rises, MACE rise too. Logistic regression analysis shows, RDW (OR=2.351, 95%CI: 1.156~4.781,P=0.018), age (OR=0.926, 95%CI: 0.859~0.997,P=0.042), CRP (OR=1.151, 95%CI: 1.048~1.265,P=0.003), creatinine (OR=0.962, 95%CI: 0.925~1.000,P=0.013), cTnI (OR=0.887, 95%CI: 0.808~0.974,P=0.012) are independent risk factors. ConclusionRDW is an independent risk factor for the short-term outcomes in STEMI patients.