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第43卷第11期 南京医科大学学报(自然科学版)
2023年11月 Journal of Nanjing Medical University(Natural Sciences) ·1557 ·
·临床研究·
儿童原发免疫性血小板减少症慢性化危险因素分析
曹晴晴 ,袁玉芳 ,田兆方 ,张荣荣 ,朱海艳 ,王 云 1
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南京医科大学附属淮安第一医院儿科,新生儿科,江苏 淮安 223300
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[摘 要] 目的:分析儿童原发免疫性血小板减少症(immune thrombocytopenia,ITP)慢性化的危险因素,为临床早期判断疾病
转归及治疗提供依据。方法:选取2019年1月—2021年12月在南京医科大学附属淮安第一医院儿科诊断为ITP的161例住院
患儿为研究对象,并随访1年以上,按照病程长短分为非慢性ITP组(84例)及慢性ITP组(77例)。多因素Logistic回归分析慢
性 ITP 的独立危险因素;通过受试者工作特征(receiver operating characteristic,ROC)曲线、校准曲线和临床决策曲线(decision
curve analysis,DCA)评估模型的效能。结果:①慢性ITP发生的独立危险因素包括年龄、辅助性T细胞(helper T cell,Th)/杀伤
性T细胞(killer T cell,Tc)、血清胱抑素C和血清C3(P<0.05);②年龄、Th/Tc、血清胱抑素C、血清C3及四者联合预测慢性ITP
发生的 ROC 曲线下面积分别为 0.725(95%CI:0.647~0.804)、0.741(95%CI:0.665~0.817)、0.706(95%CI:0.626~0.785)、0.635
(95%CI:0.550~0.720)、0.853(95%CI:0.794~0.911);③Calibration 校准曲线接近理想曲线;④DCA 曲线显示预测模型在0.10~
0.85概率范围内的表现更好。结论:年龄、Th/Tc、血清胱抑素C和血清C3是儿童慢性ITP发生的独立影响因素,上述指标联合
对预后有更好的预测价值。
[关键词] 免疫性血小板减少症;儿童;慢性;危险因素
[中图分类号] R725.5 [文献标志码] A [文章编号] 1007⁃4368(2023)11⁃1557⁃06
doi:10.7655/NYDXBNS20231112
Analysis of risk factors for the chronicity of immune thrombocytopenia in children
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CAO Qingqing ,YUAN Yufang ,TIAN Zhaofang ,ZHANG Rongrong ,ZHU Haiyan ,WANG Yun 1
1 Department of Pediatrics,Department of Neonatology,the Affiliated Huai’an No.1 People’s Hospital of Nanjing
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Medical University,Huai’an 223300,China
[Abstract] Objective: To analyze risk factors of chronic childhood immune thrombocytopenia(ITP),and to provide basis for early
judging the prognosis and treatment of ITP. Methods:A total of 161 inpatients diagnosed with ITP in the Pediatrics Department of the
Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University between January 2019 and December 2021 were selected as
the research subjects,and they were followed up for more than one year. According to the course of the disease,they were divided into
non⁃chronic ITP group(84 cases)and chronic ITP group(77 cases). Multivariate logistic regression analysis was conducted to analyze
the independent risk factors of chronic ITP. The efficacy of the model was evaluated by receiver operating characteristic(ROC)curve,
calibration curve and decision curve analysis(DCA). Results:①Independent risk factors for chronic ITP included age,helper T cell
(Th)/killer T cell(Tc),serum cystatin C and serum C3(P<0.05). ②The areas under the ROC curves to predict chronic ITP by age,
Th/Tc,serum cystatin C and serum C3 and their combination were 0.725(95%CI:0.647~0.804),0.741(95%CI:0.665~0.817),0.706
(95%CI:0.626~0.785),0.635(95%CI:0.550~0.720),0.853(95%CI:0.794~0.911),respectively. ③The calibration curve is close to
the ideal curve. ④The DCA curves showed a better performance of the prediction model in the 0.10~0.85 threshold probability range.
Conclusion:Age,Th/Tc,serum cystatin C and serum C3 are independent influencing factors in children with chronic ITP,and their
combination shows a better predictive value for the prognosis.
[Key words] immune thrombocytopenia;child;chronicity;risk factor
[J Nanjing Med Univ,2023,43(11):1557⁃1561,1573]
[基金项目] 江苏省卫生健康委员会医学科研重点项目(ZDB2020005)
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通信作者(Corresponding author),E⁃mail: yyf92992@njmu.edu.cn