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中华老年病研究电子杂志 ›› 2025, Vol. 12 ›› Issue (01) : 17 -21. doi: 10.3760/cma.j.issn.2095-8757.2025.01.004

临床研究

单核细胞与淋巴细胞比值对老年人髋部骨折术后肺部感染的预测价值
张玉1, 黎燕1, 张慧娟1, 张兰君1,()   
  1. 1. 310030 杭州,浙江医院骨科
  • 收稿日期:2024-11-21 出版日期:2025-02-28
  • 通信作者: 张兰君

The predictive value of the monocyte-to-lymphocyte ratio for postoperative pulmonary infection in elderly patients with hip fractures

Yu Zhang1, Yan Li1, Huijuan Zhang1, Lanjun Zhang1,()   

  1. 1. Orthopedic Center, Zhejiang Hospital, Hangzhou 310030, China
  • Received:2024-11-21 Published:2025-02-28
  • Corresponding author: Lanjun Zhang
引用本文:

张玉, 黎燕, 张慧娟, 张兰君. 单核细胞与淋巴细胞比值对老年人髋部骨折术后肺部感染的预测价值[J/OL]. 中华老年病研究电子杂志, 2025, 12(01): 17-21.

Yu Zhang, Yan Li, Huijuan Zhang, Lanjun Zhang. The predictive value of the monocyte-to-lymphocyte ratio for postoperative pulmonary infection in elderly patients with hip fractures[J/OL]. Chinese Journal of Geriatrics Research(Electronic Edition), 2025, 12(01): 17-21.

目的

探讨外周血单核细胞与淋巴细胞比值(MLR)对老年人髋部骨折术后肺部感染的预测价值。

方法

回顾性分析2018年1月至2024年12月浙江医院收治的265例老年髋部骨折患者的临床资料,采用单因素分析比较术后发生肺部感染和未发生肺部感染患者的基线特征,并绘制受试者工作特征(ROC)曲线评估MLR对老年人髋部骨折术后肺部感染的预测价值。采用多因素Logistic回归模型进一步分析老年人髋部骨折术后肺部感染的独立危险因素。

结果

老年人髋部骨折术后肺部感染的发生率为5.7%(15/265)。单因素分析显示,术后入住ICU和术后24 h MLR升高与患者肺部感染有关(P<0.05)。MLR预测老年人髋部骨折术后肺部感染的ROC曲线下面积为 0.691(95%CI:0.561-0.820,P<0.05),最佳截断值为0.7。多因素Logistic回归分析显示,MLR≥0.7是老年人髋部骨折术后肺部感染的独立危险因素(OR=4.161,95%CI:1.038-16.676,P<0.05)。

结论

老年人髋部骨折术后24 h内MLR≥0.7与肺部感染有关,这一指标或有利于临床早期识别高风险患者。

Objective

To investigate the the predictive value of the monocyte-to-lymphocyte ratio (MLR) for postoperative pulmonary infection (PPI) in elderly patients with hip fractures.

Methods

A retrospective analysis was conducted on clinical data from 265 elderly hip fracture patients admitted to a tertiary hospital in Hangzhou between January 2018 and December 2024. Patients were divided into a pulmonary infection group and a non-infection group based on the occurrence of PPI. Univariate analysis was used to identify risk factors for PPI. Receiver operating characteristic (ROC) curves were plotted to evaluate the predictive value of MLR postoperatively for PPI in elderly patients with hip fractures. The further analysis of independent risk factors was conducted using a multiple logistic regression model.

Results

The incidence of PPI in elderly hip fracture patients was 5.7% (15/265). Univariate analysis revealed that ICU admission and elevated MLR at 24 hours postoperatively were associated with PPI(P < 0.05). Multivariate analysis demonstrated that MLR≥0.7 postoperatively was an independent risk factor for PPI (OR=4.161, 95%CI: 1.038-16.676, P < 0.05). The area under the ROC curve (AUC) for MLR in predicting PPI was 0.691 (95%CI: 0.561-0.820, P < 0.05), with an optimal cutoff value of 0.7.

Conclusion

An early postoperative MLR value of ≥0.7 in elderly hip fracture patients is associated with PPI. This biomarker may aid in early clinical identification of high-risk patients.

表1 老年人髋部骨折术后肺部感染与未感染者基线特征的比较[例(%)或MP25P75)]
图1 单核细胞与淋巴细胞比值预测老年人髋部骨折术后肺部感染的ROC曲线分析
表2 术后不同MLR的老年髋部骨折患者的基线特征比较[例(%)或MP25P75)]
表3 老年人髋部骨折术后肺部感染的多因素分析
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