目的 探究血清C反应蛋白与白蛋白比值(CRP/ALB)、中性粒细胞与淋巴细胞比值(NLR)、血糖不稳定指数(GLI)水平对重症肺炎患者预后的预测价值。方法 将我院2020年1月—2021年5月收治的126例重症肺炎患者作为研究对象,根据入院治疗28 d的预后情况,分为存活组(93例)和死亡组(33例)。对比2组患者的一般资料,采用多因素Logistic分析重症肺炎患者高危因素,应用ROC曲线评估血清CRP/ALB、NLR、GLI水平对重症肺炎患者预后的预测价值。结果 2组患者一般资料对比,NEU、CRP、APACHEⅡ、CRP/ALB、NLR、GLI水平差异有统计学意义(P<0.05);多因素Logistic回归分析显示APACHEⅡ评分、血清CRP/ALB、NLR、GLI水平是重症肺炎患者死亡的危险因素;ROC曲线分析结果显示,CRP/ALB、NLR、GLI曲线下面积分别为0.837,0.826,0.837。结论 CRP/ALB、NLR、GLI水平对重症肺炎患者预后均具有较高的预测价值,其中以CRP/ALB的预测价值最佳。

Objective To explore the prognostic predictive value of serum CRP/ALB, NLR and GLI in patients with severe pneumonia. Methods A total of 126 patients with severe pneumonia treated in our hospital from January 2020 to May 2021 were divided into survival group (93 cases) and death group (33 cases) according to the prognosis of 28 days of hospitalization. The general data of the two groups were compared, the high-risk factors of patients with severe pneumonia were analyzed by multivariate logistic, and the predictive value of serum CRP/ALB, NLR and GLI levels on the prognosis of patients with severe pneumonia was evaluated by ROC curve. Results There were significant differences in the levels of NEU, CRP, APACHE Ⅱ, CRP/ALB, NLR and GLI between the two groups (P<0.05); multivariate logistic regression analysis showed that APACHE Ⅱ score, serum CRP/ALB, NLR and GLI were the risk factors of death in patients with severe pneumonia; ROC curve analysis showed that the areas under CRP/ALB, NLR and GLI curves were 0.837, 0.826 and 0.837 respectively. Conclusions The levels of CRP/ALB, NLR and GLI had high predictive value in the prognosis of patients with severe pneumonia, among which CRP/ALB had the best predictive value.

目的 利用网络药理学技术,分析黄甲软肝颗粒治疗肝纤维化的作用网络,以及黄甲软肝颗粒治疗肝纤维化的潜在作用机制,并在体内动物实验进行初步验证。方法 采用中药系统药理学分析平台中寻找黄甲软肝颗粒中10味中药相关的化学成分和作用靶点,通过GeneCards等数据库筛选肝纤维化疾病相关的靶标;对药物与疾病靶点相映射得到黄甲软肝颗粒治疗肝纤维化的作用靶点,运用cytoscape将疾病靶点与复方活性成分靶点的交集-交集部分对应的活性成分”构建“C(成分)-T(靶点)”作用网络。将交集靶点利用 DAVID数据库进行GO富集分析和KEGG富集分析,以获得其潜在作用机制。最后,通过黄甲软肝颗粒防治CCl₄导致SD大鼠肝纤维化的体内实验进行初步验证,考察末次给药后大鼠体质量和肝脏指数,采用微板法检测SD大鼠血清中天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)水平,苏木精-伊红染色观察肝脏病理学变化。结果 预测筛选得到黄甲软肝颗粒共有117个潜在活性成分,266个活性成分对应靶点,161个交集靶点,关键成分有槲皮素、山奈酚、丹参酮IIA、芒柄花黄素等,关键靶点有PTGS2、PTGS1、NCOA1、ACHE、HTR、RXRA、ADRB2、IL1B等。GO 分析共包含 960条富集结果,其中生物过程845 条,分子功能 63条,细胞组成 52 条;KEGG 分析共得出68条通路,与本次研究较相关的通路主要包括TNF信号通路、Toll样受体信号通路、Rap1信号通路、胞质DNA传感途径、ErbB信号通路、VEGF信号通路等。体内动物实验研究表明,黄甲软肝颗粒能显著降低大鼠的肝脏指数和血清ALT、AST,改善肝组织病理学指标。结论 黄甲软肝颗粒可通过多成分、多途径、多靶点协同发挥治疗肝纤维化的作用,本研究为黄甲软肝颗粒治疗肝纤维化疾病的物质基础、作用机制及临床应用的进一步研究奠定基础。

Objective To analyze the effective network of Huangjia Ruangan Granules in treating liver fibrosis and its potential mechanism by using network pharmacology, and preliminary verify by animal in vivo experiments. Methods From the Chinese Medicine System Pharmacology Analysis Platform, we searched for the chemical constituents and targets of 10 Chinese herbs in Huangjia Ruangan Granules, and screened the targets related to liver fibrosis diseases through GeneCards and other databases. The drug and disease target were mapped to the target of Huangjia Ruangan Granules for the treatment of liver fibrosis, and the active component corresponding to the intersection of the disease target and the compound active component target was constructed using cytoscape “C (component)-T (target)” action network. The intersection target was used for GO enrichment analysis and KEGG enrichment analysis with DAVID database to obtain its potential mechanism of action. Finally, through the in vivo experiment of using Huangjia Ruangan Granules to prevent and treat CCl₄ leaded liver fibrosis in SD rats, the rats' body weight and liver index after the last dose were recorded, and the levels of aminotransferase (AST) and alanine aminotransferase (ALT) in the serum of SD rats were detected by the microplate method, hematoxylin-eosin staining were used to observe liver pathological changes. Results Predictive screening showed that Huangjia Ruangan Granules had 117 potential active ingredients, 266 active ingredients corresponded to targets, and 161 intersection targets. The key ingredients was quercetin, kaempferol, tanshinone IIA, formononetin, etc. The key targets were PTGS2, PTGS1 NCOA1, ACHE, HTR, RXRA, ADRB2, IL1B, etc. GO analysis showed a total of 960 enrichment results, including 845 biological processes, 63 molecular functions, and 52 cell compositions; KEGG analysis revealed a total of 68 pathways, the related pathways included TNF signaling pathway, Toll-like receptor signaling pathway, Rap1 signaling pathway, cytoplasmic DNA sensing pathway, ErbB signaling pathway and VEGF signaling pathway, etc. In vivo animal experiments had shown that Huangjia Ruangan Granules could significantly reduce the liver index and serum ALT and AST levels of rats, and improve liver histopathological indicators. Conclusions Huangjia Ruangan Granules treated liver fibrosis through multi-component, multi-pathway and multi-target synergy. This research laid the groundwork for the material basis, mechanism and clinical application of Huangjia Ruangan Granules in treating liver fibrosis diseases.

目的 分析术前血清鳞状细胞癌相关抗原(SCCA)对宫颈鳞癌患者发生盆腔淋巴结转移的预测价值。方法 选取2018年1月—2021年1月于我院肿瘤科治疗的128例宫颈鳞癌患者作为研究对象,根据其是否发生盆腔淋巴结转移将其分为转移组(42例)和非转移组(86例)。对比2组宫颈鳞癌患者一般资料,采用多因素Logistic分析宫颈鳞癌患者发生盆腔淋巴结转移的高危因素,采用ROC曲线评估术前血清SCCA对宫颈鳞癌患者发生盆腔淋巴结转移的预测价值,通过约登指数确定最佳截断值。结果 2组患者一般资料对比,宫颈鳞癌细胞分化程度、宫颈鳞癌临床分期、宫颈鳞癌肿瘤直径大小、是否出现宫旁转移现象、是否出现脉管浸润现象、浸润深度、SCCA水平的差异有统计学意义,P<0.05;多因素Logistic分析显示宫颈鳞癌细胞分化程度、脉管浸润阳性、浸润深度、SCCA水平是宫颈鳞癌患者发生盆腔淋巴结转移的危险因素;ROC曲线分析结果显示,SCCA水平曲线下面积为0.909,最佳截断值为0.597 5 μg/L。结论 术前血清SCCA水平对宫颈鳞癌患者发生盆腔淋巴结转移具有预测价值。

Objective To analyze the predictive value of preoperative serum squamous cell carcinoma antigen (SCCA) on pelvic lymph node metastasis in patients with cervical squamous cell carcinoma.Methods A total of 128 patients with cervical squamous cell carcinoma treated in the oncology department of our hospital from January 2018 to January 2021 were selected as the research objects,and divided into metastatic group (42 cases) and non-metastatic group (86 cases) according to whether pelvic lymph node metastasis occurred.The general data of the two groups of patients with cervical squamous cell carcinoma were compared.Multivariate logistic analysis was used to analyze the risk factors for pelvic lymph node metastasis in patients with cervical squamous cell carcinoma.ROC curve was used to evaluate the predictive value of preoperative serum SCCA for pelvic lymph node metastasis in patients with cervical squamous cell carcinoma,and the optimal cut-off value was determined by Yoden index.Results When comparing the general data of the two groups of patients,the differences in the degree of cervical squamous carcinoma cell differentiation,clinical stage of cervical squamous carcinoma,tumor diameter of cervical squamous carcinoma,whether the phenomenon of parametastasis was present,whether the phenomenon of choroidal infiltration was present,depth of infiltration,and SCCA level were statistically significant,P<0.05; multi-factor logistic analysis showed that the degree of cervical squamous carcinoma cell differentiation,positive vascular invasion,depth of invasion and SCCA level were risk factors for pelvic lymph node metastasis in cervical squamous cell carcinoma patients.The results of ROC curve analysis showed that the area under the curve of SCCA level was 0.909 and the optimal cut-off value was 0.597 5 μg/L.Conclusions Preoperative serum SCCA level had good predictive value for the occurrence of pelvic lymph node metastasis in patients with cervical squamous carcinoma.

目的 分析妊娠中期血清25(OH)D₃水平对妊娠期糖尿病(gestational diabetes mellitus,GDM)的预测价值。方法 选取2019年7月—2020年3月在广州市妇女儿童医疗中心及广东省计划生育专科医院进行产前检查的孕中期妇女,根据孕妇的空腹血糖(FBG)水平和口服糖耐量试验(OGTT)结果分为GDM组(100例)和对照组(320例)。分别测定两组孕妇的年龄、孕前BMI、空腹血糖、服糖后l h血糖、服糖后2 h血糖、空腹胰岛素及25(OH)D₃等指标,进行统计分析与比较。结果 GDM组维生素D不足及缺乏的发病率高于对照组(P＜0.05)。年龄、空腹胰岛素在两组之间无统计学差异(P＞0.05);GDM组25(OH)D₃水平低于对照组(P＜0.05);GDM组空腹血糖、服糖后1 h、2 h血糖及孕前BMI均高于对照组(P＜0.05)。血清25(OH)D₃水平与空腹血糖、服糖后1 h、2 h血糖呈负相关(P＜0.05),而与年龄、BMI及空腹胰岛素无显著相关性(P＞0.05)。25(OH)D₃水平与妊娠期糖尿病发生风险呈负相关。结论 妊娠中期血清25(OH)D₃水平降低可能增加GDM的发生风险,联合检测妊娠中期血清25(OH)D₃水平有助于GDM的早期预测。

Objective To analyze the predictive value of serum 25(OH)D₃ level in the second trimester of pregnancy for gestational diabetes mellitus. Methods From July 2019 to March 2020, pregnant women who had prenatal examinations in Guangzhou Women and Children's Medical Center and Guangdong Family Planning Hospital were selected and divided into GDM group (100 cases) and control group (320 cases) according to FBG level and oral glucose tolerance test (OGTT) results.The age, pre-pregnancy BMI, fasting blood glucose, l h blood glucose after taking sugar, 2 h blood glucose after taking sugar, fasting insulin, 25(OH)D₃ and other indicators of the two groups of pregnant women were measured, respectively, for statistical analysis and comparison. Results The incidence of vitamin D deficiency and deficiency in GDM group was higher than that in control group (P<0.05).There was no significant difference in age and fasting insulin between the two groups (P>0.05).The level of 25(OH)D₃ in the GDM group was lower than that in the control group (P<0.05).Fasting blood glucose, blood glucose at 1 h and 2 h after taking sugar and BMI before pregnancy were all higher in the GDM group than in the control group (P<0.05).Serum 25(OH)D₃ level was negatively correlated with fasting blood glucose and blood glucose at 1 h and 2 h after taking sugar (P<0.05), but not significantly correlated with age, BMI and fasting insulin (P>0.05).The level of 25(OH)D₃ was negatively correlated with the risk of gestational diabetes. Conclusion Reduced serum 25(OH)D₃ levels in the second trimester may increase the risk of GDM, and combined detection of serum 25(OH)D₃ levels in the second trimester is helpful for early prediction of GDM.

目的 探讨宫颈病变诊断中HPV联合TCT(薄层液基细胞学)检测的预测价值。方法 本文将2019年2月—2020年2月收治的宫颈病变患者90例作为研究对象,对所有患者实施HPV检测、TCT检测及阴道镜活检,将阴道镜检查结果作为金标准,统计分析TCT检测与病理结果比较、HPV检测与病理结果比较、联合检测与病理结果比较及诊断准确率。结果 90例患者经病理检查显示宫颈正常27例、CINⅠ期27例、CINⅡ期11例、CINⅢ期14例、宫颈癌11例;TCT检测显示宫颈正常19例、ASCUS 33例、LSIL 22例、HSIL 12例、SCC 4例。经HPV检测显示阳性73例,阴性17例;联合检测显示阳性88例,阴性2例;联合检测准确率与病理结果之间差异无统计学意义,P＞0.05。结论 HPV检测联合TCT检测在宫颈病变中具有较高的预测价值,准确度较高且具有无创性,可有效降低阴道镜活检的概率或者手术探查的概率,患者医疗负担相对较轻,可将其应用于宫颈病变的大规模筛查中。

Objective To investigate the predictive value of HPV combined with TCT (thinprep cytology test) in the diagnosis of cervical lesions. Methods 90 patients with cervical lesions from February 2019 to February 2020 were selected as the research objects. HPV detection, TCT detection and colposcopy biopsy were carried out for all patients. The colposcopy results were taken as the gold standard. The comparison of TCT detection and pathological results, HPV detection and pathological results, joint detection and pathological results comparison and diagnostic accuracy were statistically analyzed. Results Pathological examination showed that 27 cases of normal cervix, 27 cases of CIN Ⅰ, 11 cases of CIN Ⅱ, 14 cases of CIN Ⅲ and 11 cases of cervical cancer; TCT showed 19 cases of normal cervix, 33 cases of ASCUS, 22 cases of LSIL, 12 cases of HSIL and 4 cases of SCC. HPV test showed that 73 cases were positive and 17 cases were negative; 88 cases were positive and 2 cases were negative by combined detection; there was no significant difference between the accuracy of combined detection and pathological results, P>0.05. Conclusion HPV detection combined with TCT detection in cervical lesions has high predictive value, high accuracy and non-invasive. It can effectively reduce the probability of colposcopy biopsy or surgical exploration. It makes patients with relatively light medical burden, may be applied to large-scale screening of cervical lesions.

目的 探讨两种不同机器学习算法在妊娠期糖尿病(gestational diabetes mellitus,GDM)风险预测中的应用。方法 选取2019年7月—2020年8月在广州市妇女儿童医疗中心及广东省计划生育专科医院进行产前检查的孕早期妇女520例,其中妊娠期糖尿病孕妇200例,随机抽取同期正常孕妇320例,收集孕妇的一般资料和孕早期(8～12周)的生化指标、血常规和凝血功能等检测资料。利用这些分析变量建立支持向量机(SVM)和Logistic回归(LR)预测模型。根据模型预测能力和模型实用性,如准确率、精确率、真阳性(TP)率、假阳性(FP)率、召回率、F测度、受试者工作特征曲线(ROC)进行效果评价。结果 两种预测模型的分类准确率总体为86%。SVM模型在真阳性(TP)率、假阳性(FP)率、召回率、F测度、受试者工作特征曲线(ROC)方面优于LR模型。结论 在分类与预测方面,支持向量机算法比Logistic回归模型更具有实用价值。

Objective To explore the application of two different machine learning algorithms in the risk prediction of gestational diabetes mellitus (GDM). Methods A total of 520 pregnant women with gestational diabetes mellitus were selected from Women and Children's Medical Center and Guangdong Family Planning Hospital from July 2019 to August 2020, including 200 cases of gestational diabetes mellitus, and 320 normal pregnant women in the same period. The general information of pregnant women and the detection data of biochemical indexes, blood routine test and coagulation function in early pregnancy (8～12 weeks) were collected. Support vector machine (SVM) and logistic regression (LR) prediction models were established by using these analysis variables. According to the predictive ability and practicability of the model, something like accuracy rate, precision ratio, true positive (TP) rate, false positive (FP) rate, recall rate, F-measure and receiver operating characteristic curve (ROC) were evaluated. Results The classification accuracy of the two models was 86%. SVM model is better than LR model in TPrate, FPrate, recall rate, F measure and ROC. Conclusion Support vector machine is more practical than logistic regression model in classification and prediction.

目的 基于网络药理学方法预测银杏叶治疗心肌缺血的潜在靶点及信号通路。方法 利用 TCMSP 平台筛选生物利用度(OB)≥ 30% 和类药性(DL)≥ 0.18 的活性成分及作用靶点。利用GeneCards和OMIM数据库检索心肌缺血疾病相关靶点,并提取药物成分和心肌缺血疾病的共有靶点作为关键靶点。通过在线TRING平台构建PPI网络,并采用Cytoscape 软件构建可视化的“化合物-靶点-通路”网络,进一步进行GO 功能富集分析和KEGG通路富集分析。结果 筛选得到 27种潜在的药效成分,2 164个化合物靶点,531个心肌缺血相关靶基因。两者取交集后获得疾病-类药活性成分40个共同靶点,PPI 蛋白互作网络自由度较高的节点依次为:IL6、VEGFA、CASP3、MAPK8、MYC、NOS3。GO 功能富集分析得到42个 GO 条目,KEGG 通路富集分析得到42条信号通路。结论 银杏叶治疗心肌缺血主要GO 能力富集在半胱氨酸肽链内切酶活性,内肽酶活力,激活转录因子结合,DNA结合转录激活剂活性,RNA聚合酶II特异性等功能,调控TNF信号通路,糖尿病并发症的年龄愤怒信号, 细胞凋亡,PI3K-Akt信号通路等信号,进一步达到对心肌缺血疾病的治疗。

Objective To predict the potential targets and signal pathways of ginkgo leaf in the treatment of myocardial ischemia based on network pharmacology. Methods The active components and targets of bioavailability (OB) ≥ 30% and drug-like (DL) ≥ 0.18 were screened by TCMSP platform.The related targets of myocardial ischemic diseases were searched by GeneCards and OMIM database, the components and the common targets of myocardial ischemic diseases were extracted as the key targets. To build the PPI network through the online STRING platform, a visual “compound-target-pathway” network was constructed to further analyze the functional enrichment of GO and the enrichment of KEGG pathway. Results 27 potential active components, 2 164 compound targets and 531 myocardial ischemia related target genes were screened. After the intersection of the two, 40 common targets of disease-class active components were obtained. The nodes with higher degree of freedom of PPI protein interaction network were IL6、VEGFA、CASP3、MAPK8、MYC and NOS3.42 entries were obtained by GO functional enrichment analysis and 42 signal pathways were obtained by KEGG pathway enrichment analysis. Conclusion Ginkgo leaf may be a target of cysteine-type endopeptidase activity,endopeptidase activity,activating transcription factor binding,DNA-binding transcription activator activity, RNA polymerase II-specific function. TNF signaling pathway, AGE-RAGE signaling pathway in diabetic complications, apoptosis, PI3K-Akt signaling pathway were regualted to achieve the treatment of myocardial ischemia disease.

目的 探讨血浆BNP预测急性肺栓塞患者发生心血管疾病的临床价值。方法 选择2017年1月—2017年12月在我院诊断为急性肺血栓栓塞患者97例为研究对象,根据有无出现心血管并发症分为观察组(21例)和对照组(76例)。比较两组间实验室指标的差异性和相关性,并采用ROC曲线分析BNP预测急性肺栓塞患者发生心血管疾病的临床价值。结果 观察组共出现21例心血管并发症,占21.65%。观察组中BNP、Hs-CRP 、TnI 、AST、CK和DD的浓度分别为(413.01±33.09)(pg/mL)、(20.49±2.88)mg/L、(0.154±0.103)μg/L、(131.23±27.05)U/L、(421.64±50.70)U/L和(1.95±0.18)mg/L,高于对照组(P<0.05)。Spearman相关性分析,血浆BNP水平与Hs-CRP 、TnI 、AST、CK和DD水平呈正相关(r=0.802、0.718、0.683、0.705、0.753,P<0.05)。ROC曲线分析,BNP的AUC面积最高,为0.834(95%CI:0.795~0.935),敏感度和特异度分别为90.5%和87.5%,联合诊断的AUC面积为0.892(95%CI:0.811~0.976),敏感度和特异度分别为84.6%和91.3%。结论 血浆BNP对于预测急性肺栓塞患者发生心血管疾病具有极高临床价值,采取多指标联合检查可以更加有效发现心血管疾病的发生。

Objective To investigate the clinical value of plasma BNP in predicting cardiovascular disease in patients with acute pulmonary embolism. Methods 97 cases of acute pulmonary thromboembolism diagnosed in our hospital from January to December 2017 were selected.The patients were divided into the observation group (21 cases) and control group (76 cases) according to whether there were cardiovascular complications.The differences and correlations of laboratory indexes between the two groups were compared, and the ROC curve was used to analyze the clinical value of BNP in predicting the occurrence of cardiovascular disease in patients with acute pulmonary embolism. Results 21 cases of cardiovascular complications occurred in the observation group, accounting for 21.65%.The concentration of BNP, Hs-CRP, TnI, AST, CK and DD in the observation group were (413.01±33.09) (pg/mL), (20.49±2.88) mg/L, (0.154±0.103) μg/L, (131.23±27.05) U/L, (421.64±50.70) U/L and (1.95±0.18) mg/L, which were higher than those of the control group(P<0.05). Spearman correlation analysis showed that plasma BNP levels were positively correlated with the levels of Hs-CRP, TnI, AST, CK and DD (r=0.802,0.718,0.683,0.705,0.753,P<0.05). The ROC curve analysis showed that the area of AUC of BNP was 0.834 (95%CI:0.795~0.935) of the highest, the sensitivity and specificity were 90.5% and 87.5% respectively. The area of combined diagnosis of AUC was 0.892 (95%CI:0.811~0.976),the sensitivity and specificity were 84.6% and 91.3%, respectively. Conclusion Plasma BNP is of high clinical value for predicting the incidence of cardiovascular disease in patients with acute pulmonary embolism. Multi-index combined examination may be more effective to detect the occurrence of cardiovascular disease.

目的 探讨STAF评分(the score for the targeting of atrial fibrillation,STAF)对心源性脑卒中(cardioembolism, CE)的预测价值,以辅助急性缺血性卒中患者病因学分型。方法 本研究为回顾性病例研究,连续入选2009年1月—2010年12月在暨南大学附属第一医院神经内科住院的急性缺血性卒中患者。所有患者严格按照STAF评分标准进行评分,按TOAST(the trial of org 10172 in acute stroke treatment,TOAST)病因学分型标准进行分型,采用SPSS 13.0软件进行统计分析,采用受试者工作特征曲线(receiver operator characteristic,ROC)来评判STAF评分对CE的预测价值。结果 共收集317例患者,其中CE 37例(11.67%)。STAF≥5提示为CE的灵敏度为89%,特异度为91%。结论 STAF评分对CE的预测有较好的作用价值,可辅助急性缺血性卒中病因学分型。

目的 探讨红细胞分布宽度(RDW)与稳定性冠心病的冠脉病变严重程度的关系,评价RDW对稳定性冠心病的预测价值。方法 收集我院2016年11月—2018年11月期间因胸痛住院的患者330例,根据冠脉造影确诊稳定性冠心病组200例,除外冠心病130例为对照组。比较2组RDW水平的差异,分析RDW与冠脉病变严重程度(Gensini评分)的相关性及稳定性冠心病的独立危险因素。结果 稳定性冠心病组RDW水平高于对照组(P<0.05),稳定性冠心病组RDW与 Gensini评分之间存在正相关(r=0.217,P=0.002);多因素logistic回归分析显示RDW(OR=2.950,95%CI: 1.986~4.381,P<0.001)是稳定性冠心病的独立危险因子。结论 RDW与稳定性冠心病的冠脉病变严重程度呈正相关,RDW是稳定性冠心病的独立危险因素,为稳定性冠心病的诊断提供一定预测价值。

Objective To investigate the relationship between the distribution width of red blood cells (RDW) and the severity of coronary artery disease in stable coronary artery disease(SCAD), and to evaluate the predictive value of RDW for SCAD. Methods Patients who were hospitalized for chest pain from November 2016 to November 2018 were enrolled (n=330). According to coronary angiography,200 patients were divided into SCAD group (n=200),except for the SCAD group, the remaining 130 cases were the control group(n=130). The differences of RDW levels between the two groups were compared, and the correlation between RDW and severity of coronary artery disease (Gensini score) and independent risk factors for SCAD were analyzed. Results The RDW level in the SCAD group was higher than that in the control group (P<0.05). There was a positive correlation between the RDW and Gensini scores in the SCAD group (r=0.217,P=0.002). Multivariate logistic regression analysis showed RDW (OR=2.950, 95% CI: 1.986~4.381, P<0.001) is an independent risk factor for SCAD. Conclusion RDW is positively correlated with the severity of coronary artery disease in SCAD. RDW is independent risk factor of SCAD and provides predictive value for the diagnosis of SCAD.