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中华临床医师杂志(电子版) ›› 2019, Vol. 13 ›› Issue (01) : 7 -12. doi: 10.3877/cma.j.issn.1674-0785.2019.01.002

所属专题: 文献

临床研究

红细胞分布宽度在儿童过敏性紫癜中的临床价值
李新叶1, 陆元奉1, 唐慧荷1, 石丰浪1, 郑凯元1, 杨益梅1, 代艳1,()   
  1. 1. 530000 南宁,广西壮族自治区人民医院儿科
  • 收稿日期:2018-10-30 出版日期:2019-01-01
  • 通信作者: 代艳
  • 基金资助:
    广西壮族自治区卫生厅基金资助项目(Z2010229)

Clinical value of red blood cell distribution width in children with Henoch-Schönlein purpura

Xinye Li1, Yuanfeng Lu1, Huihe Tang1, Fenglang Shi1, Kaiyuan Zheng1, Yimei Yang1, Yan Dai1,()   

  1. 1. Department of pediatrics, the people's Hospital of Guangxi zhuang Autonomous Region, Nanning 530000, China
  • Received:2018-10-30 Published:2019-01-01
  • Corresponding author: Yan Dai
  • About author:
    Corresponding author: Dai Yan, Email:
引用本文:

李新叶, 陆元奉, 唐慧荷, 石丰浪, 郑凯元, 杨益梅, 代艳. 红细胞分布宽度在儿童过敏性紫癜中的临床价值[J]. 中华临床医师杂志(电子版), 2019, 13(01): 7-12.

Xinye Li, Yuanfeng Lu, Huihe Tang, Fenglang Shi, Kaiyuan Zheng, Yimei Yang, Yan Dai. Clinical value of red blood cell distribution width in children with Henoch-Schönlein purpura[J]. Chinese Journal of Clinicians(Electronic Edition), 2019, 13(01): 7-12.

目的

探讨红细胞分布宽度(RDW)在儿童过敏性紫癜(HSP)中的临床价值。

方法

收集2013年1月至2018年5月在广西壮族自治区人民医院儿科住院的HSP患儿的资料,根据是否存在肾脏损害分为紫癜性肾炎(HSPN)组和过敏性紫癜无肾炎(HSPWN)组,同时设置同期健康儿童作为对照组。对HSP患儿和健康儿童,HSPN、HSPWN患儿与健康儿童,血红细胞(RBC)、血小板(PLT)的两组间比较采用两样本t检验,三组间比较采用one-Way ANOVA;年龄,血白细胞(WBC)、血红蛋白(Hb)、红细胞比容(Hct)、红细胞平均体积(MCV)、红细胞分布宽度变异系数(RDW-CV)、红细胞分布宽度标准差(RDW-SD)和血小板平均体积(MPV)的组间比较采用秩和检验;性别分布的组间比较采用χ2检验。任意两组间比较采用Kruskal-Wallis检验(视图中选择pairwise comparisons)。HSP患儿RDW-CV、RDW-SD与其他指标的相关性分析采用Spearman秩相关分析。

结果

HSP患儿与健康儿童在性别,年龄,血MCV、PLT、MPV方面差异无统计学意义(P均>0.05)。HSP患儿血WBC,RDW-CV、RDW-SD水平较健康儿童显著增高,差异有统计学意义(Z=-6.838,P<0.001;Z=-5.437,P<0.001;Z=-4.681,P<0.001);血RBC,Hb、Hct水平较健康儿童显著降低,差异有统计学意义(t=-2.701,P=0.008;Z=-4.396,P<0.001;Z=-4.043,P<0.001)。HSPN、HSPWN患儿与健康儿童在性别,年龄,血MCV、PLT、MPV方面差异无统计学意义(P均>0.05)。HSPN、HSPWN患儿与健康儿童比较,血WBC、RDW-CV、RDW-SD水平明显升高,差异有统计学意义(Z=46.760,P<0.001;Z=32.984,P<0.001;Z=28.343,P<0.001);而血RBC、Hb、Hct水平明显降低,差异有统计学意义(t=4.375,P=0.014;Z=20.623,P<0.001;Z=18.256,P<0.001)。HSPN患儿与HSPWN患儿比较,血RDW-SD水平明显升高,差异有统计学意义(P<0.05),其余指标差异无统计学意义(P均>0.05)。HSP患儿血RDW-CV与WBC、RBC和RDW-SD呈正相关(r=0.189,P=0.047;r=0.263,P=0.005;r=0.217,P=0.023),与Hb、Hct、MCV呈负相关(r=-0.329,P<0.001;r=-0.194,P=0.042;r=-0.447,P<0.001),未发现RDW-CV水平与CRP、Fib、D-二聚体和总胆固醇水平之间的相关性(r=0.029,0.021,-0.143,0.015,P均>0.05)。HSP患儿血RDW-SD水平与MCV、RDW-CV、总胆固醇水平之间呈正相关(r=0.434,P<0.001;r=0.217,P=0.023;r=0.360,P<0.001),与RBC、D-二聚体水平呈负相关(r=-0.213,P=0.026;r=-0.301,P=0.003),未发现RDW-SD与WBC、Hb、Hct、CRP、Fib水平之间的相关性(r=-0.027,0.060,0.139,-0.073,-0.195,P均>0.05)。

结论

HSP患儿RDW水平升高,但RDW在评估HSP患儿能否进展为HSPN方面仍有待进一步研究。

Objective

To investigate the clinical value of red blood cell distribution width (RDW) in children with Henoch-Sch?nlein purpura (HSP).

Methods

The data of children with HSP who were hospitalized at the Department of Pediatrics of the People′s Hospital of Guangxi Zhuang Autonomous Region from January 2013 to May 2018 were collected. According to the presence of kidney damage or not, the patients were divided into a Henoch-Sch?nlein Purpura nephritis (HSPN) group and a HSP without nephritis (HSPWN) group. Healthy children were included as a control group. For children with HSP and healthy children as well as HSPN children, HSPWN children, and healthy children, red blood cell (RBC) count, platelet (PLT) count were compared between two groups using two-sample t-test and among three groups using one-way ANOVA. The Wilcoxon rank sum test was used for comparison of age, white blood cell (WBC) count, hemoglobin (Hb), hematocrit (Hct), red blood cell distribution width variation coefficient (RDW-CV), red blood cell distribution width standard deviation (RDW-SD), and platelet mean volume (MPV) between groups. The χ2 test was used for comparison of gender between groups. The Kruskal-Wallis test was used for comparison between any two groups (pairwise comparisons were selected in the view). Correlation analysis between RDW-CV, RDW-SD, and other indicators in children with HSP was performed by Spearman rank correlation analysis.

Results

There were no significant differences between HSP children and healthy children in gender, age, MCV, PLT count, or MPV (P>0.05). Blood WBC count, RDW-CV, and RDW-SD were significantly higher in children with HSP than in healthy children (Z=-6.838, P<0.001; Z=-5.437, P<0.001; Z=-4.681, P<0.001), while RBC count, Hb, and Hct were significantly lower in children with HSP than in healthy children (t=-2.701, P=0.008; Z=-4.396, P<0.001; Z=-4.043, P<0.001). There were no significant differences in gender, age, MCV, PLT count, or MPV among children with HSPN, those with HSPWN, and healthy children (P>0.05). Compared with healthy children, children with HSPN and HSPWN had significantly higher blood WBC count, RDW-CV, and RDW-SD (Z=46.760, P<0.001; Z=32.984, P<0.001; Z=28.343, P<0.001), but significantly lower blood RBC count, Hb, and Hct (t=4.375, P=0.014; Z=20.623, P<0.001; Z=18.256, P<0.001). Compared with children with HSPWN, RDW-SD in HSPN patients was significantly higher (P<0.05), but the other indicators were not statistically significant between the two groups (P>0.05). RDW-CV was positively correlated with blood WBC, RBC count, and RDW-SD in children with HSP (r=0.189, P=0.047; r=0.263, P=0.005; r=0.217, P=0.023), and negatively correlated with Hb, Hct, and MCV (r=-0.329, P<0.001; r=-0.194, P=0.042; r=-0.447, P<0.001). RDW-CV had no correlation with CRP, Fib, D-dimer, or cholesterol (r=0.029, 0.021, -0.143, and 0.015, respectively, P>0.05). RDW-SD had a positive correlation with MCV, RDW-CV, and cholesterol in children with HSP (r=0.434, P<0.001; r=0.217, P=0.023; r=0.360, P<0.001), but had a negative correlation with RBC count and D-dimer (r=-0.213, P=0.026; r=-0.301, P=0.003). RDW-SD had no correlation with WBC count, Hb, Hct, CRP, or Fib (r=-0.027, 0.060, 0.139, -0.073, and -0.195, respectively, P>0.05).

Conclusion

RDW is elevated in children with HSP, but it remains to be further studied whether RDW can predict the progression of HSP to HSPN in children.

表1 HSP患儿与健康儿童性别、年龄和血常规检查结果比较
表2 HSPN患儿、HSPWN患儿与健康儿童年龄、性别和血常规检查结果比较
表3 HSP患儿血RDW-CV与其他指标的相关性
表4 HSP患儿血RDW-SD与其他指标的相关性
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