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中华临床实验室管理电子杂志 ›› 2025, Vol. 13 ›› Issue (01) : 11 -16. doi: 10.3877/cma.j.issn.2095-5820.2025.01.002

自动化与信息化

国际标准化比值与脓毒症相关急性肾损伤患者死亡率的关系
原江东1, 周丽珍2, 段鹏程2, 许婕璇2, 黎江1, 卢慕荣1,()   
  1. 1. 510260 广东广州,广州医科大学附属第二医院重症医学科
    2. 510260 广东广州,广州医科大学附属第二医院护理部
  • 收稿日期:2024-05-20 出版日期:2025-02-28
  • 通信作者: 卢慕荣

The relationship between international standardized ratio and mortality of patients with sepsisrelated acute kidney injury

Jiangdong Yuan1, Lizhen Zhou2, Pengcheng Duan2, Jiexuan Xu2, Jiang Li1, Murong Lu1,()   

  1. 1. Department of Intensive Care Unit of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Guangdong 510260, China
    2. Nursing Department of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Guangdong 510260, China
  • Received:2024-05-20 Published:2025-02-28
  • Corresponding author: Murong Lu
引用本文:

原江东, 周丽珍, 段鹏程, 许婕璇, 黎江, 卢慕荣. 国际标准化比值与脓毒症相关急性肾损伤患者死亡率的关系[J/OL]. 中华临床实验室管理电子杂志, 2025, 13(01): 11-16.

Jiangdong Yuan, Lizhen Zhou, Pengcheng Duan, Jiexuan Xu, Jiang Li, Murong Lu. The relationship between international standardized ratio and mortality of patients with sepsisrelated acute kidney injury[J/OL]. Chinese Journal of Clinical Laboratory Management(Electronic Edition), 2025, 13(01): 11-16.

目的

基于美国大型数据库数据探讨国际标准化比值(INR)与脓毒症相关急性肾损伤(SA-AKI)患者预后的关系。

方法

采用回顾性队列设计,从美国重症监护医疗信息数据库Ⅳ(MIMIC-Ⅳ)2.0提取ICU入住记录的成年SA-AKI患者信息。采用限制性立方样条模型以及Cox比例风险模型来评估INR水平与住院死亡率的关系,并将其按照入住ICU后24 h内的INR的截断值进行分组绘制Kaplan-Meier生存曲线。

结果

高INR是SA-AKI患者死亡的独立危险因素(HR=1.73,95%CI 1.59~1.88,P<0.001),其与SA-AKI患者的预后呈非线性关系(P<0.001),截断值为1.4。

结论

高INR是预测SA-AKI院内死亡的独立危险因素,在SA-AKI患者的救治过程中,应重点关注INR水平和其他指标的综合评估。

Objective

To investigate the correlation between the international normalized ratio(INR) and outcomes in patients with sepsis-associated acute kidney injury(SA-AKI)using data from the Medical Information Mart for Intensive Care-Ⅳ (MIMIC-Ⅳ).

Methods

Using a retrospective queue design,information on adult SA-AKI patients with ICU admission records was extracted from the MIMIC-Ⅳ 2.0.Restricted cubic spline models and multivariable Cox proportional hazards regression were employed to evaluate the nonlinear relationship between INR levels and mortality. Patients were stratified by an ICU admission 24-hour INR cutoff for Kaplan-Meier survival analysis.

Results

Elevated INR was independently associated with increased mortality (adjusted HR=1.73, 95%CI: 1.59~1.88, P<0.001), and it shows a non-linear relationship with the prognosis of SA-AKI patients (P<0.001), with a cutoff value of 1.4.

Conclusion

High INR is an independent risk factor for predicting in-hospital mortality in SA-AKI patients. In the treatment process of SA-AKI patients, attention should be paid to the comprehensive evaluation of INR levels and other indicators.

图1 研究对象纳入排除流程
表1 两组患者一般资料比较
项目 总人群(n=5841) 存活组(n=4353) 死亡组(n=1488) z/t P
体质量/kg,xˉ± s 84.5±27.2 85.6±25.7 81.3±31.2 27.483 <0.001
年龄/ 岁,MQ1Q3 67.0(56.0,78.0) 66.0(55.0,77.0) 71.0(60.0,81.0) 98.516 <0.001
心率/(次/ 分),xˉ± s 90.4±17.6 89.2±17.2 93.7±8.3 73.542 <0.001
收缩压/mmHg,xˉ± s 113.5±15.8 114.9±16.0 109.4±14.7 138.349 <0.001
舒张压/mmHg,xˉ± s 61.6±10.7 62.2±10.7 59.6±10.4 69.815 <0.001
血糖/(mg/dl),xˉ± s 234.1±3920.6 235.7±4218.3 229.5±2879.2 0.003 0.958
尿量/ml,xˉ± s 1463.9±1266.8 1586.5±1270.2 1105.5±1186.4 164.322 <0.001
PLT/(K/μl),xˉ± s 203.0±123.7 207.7±123.0 189.4±125.0 24.221 <0.001
WBC/(K/μl),xˉ± s 14.1±11.2 13.6±9.1 15.5±15.9 31.587 <0.001
HCT/%,xˉ± s 31.8±6.4 32.0±6.4 31.3±6.5 11.618 <0.001
BE/(mmol/L),MQ1Q3 21.5(18.0,24.5) 22.0(18.5,25.0) 20.0(16.5,23.5) 144.951 <0.001
Hb/(g/dl),xˉ± s 10.3±2.1 10.4±2.1 10.1±2.1 22.482 <0.001
白蛋白/(g/dl),xˉ± s 3.1±0.7 3.1±0.7 2.9±0.7 174.890 <0.001
肌酐/(mg/dl),MQ1Q3 1.4(0.9,2.4) 1.3(0.8,2.2) 1.6(1.0,2.6) 65.911 <0.001
淋巴细胞/(K/μl),MQ1Q3 19.2(1.0,101.6) 13.0(0.9,102.6) 28.9(1.0,99.5) 0.031 0.861
INR,MQ1Q3 1.4(1.2,1.8) 1.3(1.1,1.6) 1.6(1.2,2.0) 195.948 <0.001
OASIS,xˉ± s 39.0±9.2 37.9±8.8 44.1±8.7 538.103 <0.001
SAPS Ⅱ,xˉ± s 46.2±15.0 43.1±13.6 55.2±15.4 820.207 <0.001
感染后SOFA,MQ1Q3 4.0(2.0,5.0) 4.0(2.0,5.0) 4.0(3.0,6.0) 105.601 <0.001
表2 脓毒症AKI患者死亡的Cox回归分析
项目 单因素分析 多因素分析
HR(95%CI P HR(95%CI P
体质量/kg 0.992 7(0.989 8,0.994 1) <0.001 0.99(0.99~1.00) <0.001
年龄/ 岁 1.021 3(1.020 8,1.030 1) <0.001 1.02(1.01~1.02) <0.001
心率/(次/ 分) 1.005 8(1.003 0,1.008 7) <0.001 1.01(1.00~1.01) <0.001
收缩压/mmHg 0.982 3(0.981 6,0.999 8) <0.001 0.99(0.99~1.00) 0.009
舒张压/mmHg 0.982 3(0.981 6,0.999 8) <0.001 1.00(1.00~1.01) 0.424
血糖/(mg/dl) 1.000 0(1.000 0,1.000 0) 0.688 1.00(1.00~1.00) 0.990
尿量/ml 0.999 7(0.999 6,0.999 7) <0.001 1.00(1.00~1.00) <0.001
PLT/(K/μl) 0.998 9(0.998 4,0.999 3) <0.001 1.00(1.00~1.00) <0.001
WBC/(K/μl) 1.010 2(1.010 1,1.010 6) <0.001 1.00(1.00~1.01) 0.049
HCT/% 0.990 1(0.989 9,0.990 1) <0.001 1.10(1.07~1.14) <0.001
BE/(mmol/L) 0.940 0(0.930 0,0.950 0) <0.001 0.97(0.96~0.98) <0.001
Hb/(g/dl) 0.944 5(0.925 6,0.966 7) <0.001 0.75(0.68~0.83) <0.001
白蛋白/(g/dl) 0.743 4(0.688 1,0.791 2) <0.001 0.86(0.79~0.94) 0.001
肌酐/(mg/dl) 1.044 5(1.023 4,1.060 1) 0.002 0.99(0.96~1.03) 0.713
淋巴细胞/(K/μl) 1.000 1(1.000 0,1.000 2) 0.009 1.00(1.00~1.00) 0.871
INR 1.732 1(1.593 4,1.882 3) <0.001 1.32(1.24~1.41) <0.001
OASIS 1.028 9(1.027 4,1.034 5) <0.001 0.97(0.96~0.98) <0.001
SAPS Ⅱ 1.037 6(1.035 3,1.048 9) <0.001 1.03(1.02~1.03) <0.001
感染后SOFA 1.053 6(1.037 1,1.079 2) <0.001 0.97(0.94~0.99) 0.002
图2 INR与SA-AKI患者住院死亡率关系的限制性二次样条分析 注:红色阴影为90%CI,蓝色峰状分布为INR值的分布,截断值由软件自动分析得出。
图3 INR分组下患者K-M生存曲线
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