Evidence map›Paper›PMID 42443779›Full record

ArticleBMC cardiovascular disorders2026

Construction of a predictive nomogram for ICU mortality in patients with cardiac arrest using the MIMIC-IV database and the eICU Collaborative Research Database.

Wei Shi, Xuemei Hu, Hui Li, Qihui Huang, Dian Zhou, Min Yang

Abstract readValidation Study
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Article in BMC cardiovascular disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Wei Shi *The Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China.
Xuemei Hu *The Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China.
Hui LiThe Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China.
Qihui HuangThe Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China.
Dian ZhouThe Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China. ayfy_zhoudian@163.com.
Min YangThe Second Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province, 230601, China. yangmin@ahmu.edu.cn.

Funding

the Anhui Provincial Key Research and Development Plan (High-Tech Special Project) Grant No. 202304a05020071the Major Scientific Research Project of the Anhui Provincial Health Commission Grant No. AHWJ2024Aa40031the National Natural Science Foundation of China Grant No. 82072134
6 · The paper itself

Abstract

backgroundCardiac arrest (CA) is a critical clinical event associated with extremely high mortality and long-term disability. This study aimed to identify risk factors associated with ICU mortality and develop a practical nomogram for risk prediction to support prognostic assessment and risk stratification among patients with CA.

methodsA retrospective analysis was conducted using two large public critical care databases. The MIMIC-IV database was used as the training cohort for model development, while the eICU-CRD database served as the external validation cohort. Variables were initially screened using least absolute shrinkage and selection operator (LASSO) regression, and a predictive nomogram was subsequently established using binary logistic regression analysis. The discriminative performance of the model was evaluated using the receiver operating characteristic (ROC) curve. Calibration was assessed using calibration curves and the Hosmer-Lemeshow goodness-of-fit test. Clinical applicability and net benefit were further analyzed using decision curve analysis (DCA).

resultsA total of 3,029 patients from the MIMIC-IV database and 2,805 patients from the eICU-CRD database were enrolled in this study. After variable selection by LASSO regression, eight predictors were included in the nomogram. The model was compared with conventional ICU scoring systems, including SAPS II, SOFA, and CCI. In the training cohort, the AUROC values were 0.802 for the nomogram, 0.725 for SAPS II, 0.709 for SOFA, and 0.509 for CCI. In the external validation cohort, the corresponding AUROC values were 0.733, 0.596, 0.701, and 0.517, respectively. The Hosmer-Lemeshow test yielded P-values of 0.976 in the training set and 0.905 in the validation set, indicating favorable goodness-of-fit and satisfactory calibration. Moreover, DCA demonstrated that the nomogram provided greater net benefit compared with traditional scoring systems.

conclusionThe established nomogram for predicting ICU mortality in patients with CA demonstrated acceptable predictive performance and calibration. As a quantitative risk stratification tool, it may provide clinicians with useful individualized prognostic information for this vulnerable patient population.

Indexed as

Decision Support TechniquesHeart ArrestHospital MortalityIntensive Care UnitsNomogramsAgedDatabases, FactualFemaleHumansMaleMiddle AgedPredictive Value of TestsPrognosisReproducibility of ResultsRetrospective StudiesRisk AssessmentCardiac arresteICU-CRDICU mortalityMIMIC-IV databaseNomogram

Identifiers

PMID42443779
PMCPMC13643955

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