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耐碳青霉烯类肺炎克雷伯菌感染风险预测模型的构建及验证
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莫银竹 1, 2* ,程贤雄 ,宋沧桑 ,吕仕杰 ,任宝军 ,李志伟 ,包金颖 ,杨焕芝 (1.昆明市第一人民医院药学
1, 2
1
4
3
1
1, 2
部,昆明 650034;2.昆明医科大学附属甘美医院药学部,昆明 650034;3.昆明市第一人民医院检验科,昆明
650034;4.昆明市第一人民医院重症医学科,昆明 650034)
中图分类号 R978.1 文献标志码 A 文章编号 1001-0408(2025)14-1786-06
DOI 10.6039/j.issn.1001-0408.2025.14.17
摘 要 目的 探讨耐碳青霉烯类肺炎克雷伯菌(CRKP)感染的独立危险因素,构建列线图预测模型并进行验证。方法 收集昆明
市第一人民医院2020年4月至2023年5月住院并感染CRKP的患者资料,按1∶1比例同期收集住院并感染碳青霉烯敏感肺炎克雷
伯菌(CSKP)患者资料,作为建模组。另按相同标准收集2023年6月至2024年6月住院并感染CRKP及匹配CSKP的患者资料,作
为验证组。采用单因素、LASSO回归及多因素Logistic回归分析确定CRKP感染的独立危险因素,并构建列线图预测模型;采用
Bootstrap重抽样法对预测模型进行内部验证,使用验证组数据对模型进行外部验证,并通过受试者工作特征(ROC)曲线及校准曲
线评估模型的预测性能。结果 共纳入530例患者,其中建模组372例,验证组158例。脑血管疾病、留置胃管、机械通气、碳青霉
烯类抗生素暴露以及β-内酰胺酶抑制剂复方制剂暴露经分析确定为CRKP感染的独立危险因素(P<0.05)。CRKP感染风险列线
图预测模型的内部和外部验证的ROC曲线下面积分别为0.729、0.803;校准曲线的预测概率与实际概率的一致性较高。结论 脑
血管疾病、留置胃管、机械通气、碳青霉烯类抗生素暴露以及β-内酰胺酶抑制剂复方制剂暴露是CRKP感染的独立危险因素;所构
建的CRKP感染风险列线图预测模型具有良好的预测效能,能早期识别CRKP感染高风险患者。
关键词 耐碳青霉烯类肺炎克雷伯菌;危险因素;列线图;预测模型
Development and validation of risk prediction model for carbapenem-resistant Klebsiella pneumoniae
infection
MO Yinzhu ,CHENG Xianxiong ,SONG Cangsang ,LYU Shijie ,REN Baojun ,LI Zhiwei ,BAO Jinying ,
1, 2
3
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1
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YANG Huanzhi (1. Dept. of Pharmacy, Kunming First People’s Hospital, Kunming 650034, China;2. Dept.
1, 2
of Pharmacy, the Affiliated Ganmei Hospital of Kunming Medical University, Kunming 650034, China;3. Dept.
of Clinical Laboratory, Kunming First People’s Hospital, Kunming 650034, China;4. Intensive Care Unit,
Kunming First People’s Hospital, Kunming 650034, China)
ABSTRACT OBJECTIVE To investigate the independent risk factors for carbapenem-resistant Klebsiella pneumoniae (CRKP)
infection, develop a nomogram prediction model and validate it. METHODS Clinical data of hospitalized patients infected with
CRKP between April 2020 and May 2023 at Kunming First People’s Hospital were retrospectively collected and matched 1∶1 with
patients infected with carbapenem-susceptible Klebsiella pneumoniae (CSKP) during the same period as the modeling group. Using
the same criteria, data from patients hospitalized and infected with CRKP and matched CSKP between June 2023 and June 2024
were collected as the validation group. Univariate analysis, LASSO regression and multivariate Logistic regression were conducted
to identify independent risk factors for CRKP infection and to develop a nomogram prediction model. Internal validation of the
model was performed using Bootstrap resampling, and external validation was carried out using the data of validation group. The
predictive performance of the model was evaluated using
Δ 基金项目 云 南 省 科 技 厅 重 大 科 技 专 项 计 划 项 目(No. receiver operating characteristic (ROC) curves and calibration
202302AA310018-F-7);云南省教育厅科学研究项目(No.2024J0376);
plots. RESULTS A total of 530 patients were enrolled, with
云南省卫生健康委临床药学中心建设项目;昆明市卫生健康委员会卫
372 in the modeling group and 158 in the validation group.
生科研课题(No.2023-21-01-002);昆明市卫生科技人才培养项目[No.
2024-SW(领 军)-10];昆 明 医 科 大 学 研 究 生 创 新 基 金 项 目(No. Cerebrovascular disease, indwelling gastric tube, mechanical
2024S386) ventilation, exposure to carbapenem antibiotics, and exposure
* 第一作者 硕 士 研 究 生 。 研 究 方 向 :临 床 药 学 。 E-mail:
to β -lactamase inhibitor compound agents were identified as
2564136227@qq.com
# 通信作者 副主任药师,硕士生导师。研究方向:临床药学。 independent risk factors for CRKP infection (P<0.05). The
E-mail:yanghuanzhi1024@163.com nomogram predicting CRKP infection risk achieved an area
· 1786 · China Pharmacy 2025 Vol. 36 No. 14 中国药房 2025年第36卷第14期