检验医学 ›› 2019, Vol. 34 ›› Issue (8): 704-709.DOI: 10.3969/j.issn.1673-8640.2019.08.007

• 临床应用研究·论著 • 上一篇    下一篇

RDW与NLR联合检测在强直性脊柱炎中的临床意义

王静, 郑群, 金霞霞, 卢国光, 沈波()   

  1. 温州医科大学附属台州医院,浙江 台州 317000
  • 收稿日期:2019-01-04 出版日期:2019-08-30 发布日期:2019-08-27
  • 作者简介:null

    作者简介:王静,女,1987年生,学士,主管技师,主要从事临床血液学检验工作。

Role of RDW combined determination with NLR in ankylosing spondylitis

WANG Jing, ZHENG Qun, JIN Xiaxia, LU Guoguang, SHEN Bo()   

  1. Taizhou Hospital of Wenzhou Medical University,Taizhou 317000,Zhejiang,China
  • Received:2019-01-04 Online:2019-08-30 Published:2019-08-27

摘要:

目的 探讨红细胞分布宽度(RDW)与中性粒细胞/淋巴细胞比值(NLR)对强直性脊柱炎(AS)的诊断价值及与疾病活动度和病情严重程度的关系。方法 选取AS患者78例(AS组)及体检健康者78名(健康对照组),进行血常规﹑红细胞沉降率(ESR)﹑C反应蛋白(CRP )及免疫球蛋白(Ig)A、IgG、IgM等实验室指标的检测。根据磁共振成像(MRI)结果将AS患者分为Ⅰ期﹑Ⅱ期﹑Ⅲ期﹑Ⅳ期。采用Spearman相关分析评估各项目间的相关性。采用受试者工作特征(ROC)曲线评价RDW、NLR及RDW联合NLR诊断AS的价值。根据RDW和NLR的最佳临界值分别对AS患者进行分组并比较各项目间的差异。结果 AS组与健康对照组之间NLR、ESR、CRP、RDW、IgG、IgA及IgM差异有统计学意义(P<0.05)。RDW、NLR与CRP均呈正相关(r值分别为0.231、0.306,P<0.05),与ESR亦均呈正相关(r值分别为0.352、0.343,P<0.05)。ROC曲线分析结果显示,RDW、NLR诊断AS的曲线下面积(AUC)分别为0.784、0.725,最佳临界值分别为13.2、2.14,敏感性分别为59.0%、60.3%,特异性分别为96.2%、79.5%;二者联合检测的AUC为0.812,敏感性为61.5%,特异性为94.9%。RDW≤13.2的AS患者ESR低于RDW>13.2的AS患者(P=0.014);NLR≤2.14的AS患者CRP低于NLR>2.14的AS患者(P=0.018)。各分期AS患者的RDW及NLR差异均无统计学意义(P>0.05)。结论 RDW和NLR可作为AS患者新的辅助诊断指标,可反映疾病活动度,但不能反映疾病严重程度。

关键词: 红细胞分布宽度, 中性粒细胞/淋巴细胞比值, C反应蛋白, 红细胞沉降率, 强直性脊柱炎

Abstract:

Objective To study the combined diagnostic role of red blood cell distribution width(RDW) and neutrophil to lymphocyte ratio(NLR) for ankylosing spondylitis(AS),and to investigate the relations with disease activity and severity. Methods A total of 78 AS patients and 78 healthy subjects were enrolled. The results of blood routine test,erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),immunoglobin(Ig)A,IgG and IgM and other laboratory indicators were recorded. AS patients were classified into stage Ⅰ,Ⅱ,Ⅲ and Ⅳ according to the results of magnetic resonance imaging(MRI). The relationship between RDW,NLR and the activity of AS was evaluated by Spearman analysis. Receiver operating characteristic(ROC) curve was used to obtain the areas under curves(AUC) and the cut-off values of RDW,NLR and RDW combined with NLR for the diagnosis of AS. AS patients were classified according to the cut-off values of RDW and NLR,and the difference of laboratory indicators was compared between the groups. Results NLR,ESR,CRP,RDW,IgG,IgA and IgM had statistical significance between AS group and healthy control group(P<0.05). Both RDW and NLR were correlated with CRP and ESR (r=0.231,0.306,0.352 and 0.343,P<0.05). The AUC of RDW,NLR and RDW combined with NLR for the diagnosis of AS were 0.784,0.725 and 0.812,respectively. The cut-off value of RDW was 13.2,the sensitivity was 59.0%,and the specificity was 96.2%. NLR had a cut-off value of 2.14,a sensitivity of 60.3% and a specificity of 79.5%. The sensitivity of the combined determination of NLR and RDW was 61.5%,and the specificity was 94.9%. The ESR of AS patients with RDW≤13.2 was lower than that with RDW>13.2(P=0.014),and AS patients with NLR≤2.14 had lower CRP than that with NLR>2.14(P=0.018). There was no statistical significance in RDW and NLR among the different stages of AS patients(P>0.05). Conclusions RDW combined with NLR can be used as a new auxiliary diagnostic indicator for AS patients,which can reflect disease activity but not disease severity.

Key words: Red blood cell distribution width, Neutrophil to lymphocyte ratio, C-reactive protein, Erythrocyte sedimentation rate, Ankylosing spondylitis

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