Development and validation of an inflammatory-immune-nutritional integrated scoring system: a novel strategy for predicting postoperative survival in non-small cell lung cancer.
[BACKGROUND] Accurate prognosis prediction is crucial for managing non-small cell lung cancer (NSCLC).
- HR 1.63
APA
Huang Q, Xu N, Xu K (2026). Development and validation of an inflammatory-immune-nutritional integrated scoring system: a novel strategy for predicting postoperative survival in non-small cell lung cancer.. PeerJ, 14, e21122. https://doi.org/10.7717/peerj.21122
MLA
Huang Q, et al.. "Development and validation of an inflammatory-immune-nutritional integrated scoring system: a novel strategy for predicting postoperative survival in non-small cell lung cancer.." PeerJ, vol. 14, 2026, pp. e21122.
PMID
41970259
Abstract
[BACKGROUND] Accurate prognosis prediction is crucial for managing non-small cell lung cancer (NSCLC). Tumor heterogeneity limits the predictive power of traditional tumor lymph node metastasis (TNM) staging alone. The interplay between inflammation, immunity, and nutrition in the tumor microenvironment offers a potential source of novel prognostic biomarkers.
[METHODS] This multicenter retrospective study enrolled 473 stage I-IIIA NSCLC patients who underwent radical resection. An inflammatory-immune-nutritional integrated scoring system (IINS) was developed using Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression from preoperative hematological parameters. The model was validated internally ( = 142) and externally using the NHANES database ( = 134). A prognostic nomogram incorporating IINS and clinicopathological factors was constructed and evaluated using time-dependent receiver operating characteristic (ROC) curves, calibration plots, and decision curve analysis (DCA).
[RESULTS] The IINS was formulated based on platelet-to-lymphocyte ratio (PLR), systemic inflammatory response index (SIRI), and prognostic nutritional index (PNI). Patients were stratified into high- and low-IINS groups using an optimal cutoff of 4.9. Multivariate analysis identified IINS as an independent prognostic factor for both overall survival (OS) (HR = 1.63, 95% CI [1.17-2.26], = 0.004) and disease-free survival (DFS) (HR = 1.41, 95% CI [1.02-1.97], = 0.039). The nomogram demonstrated good predictive accuracy, with 1-, 3-, and 5-year area under the curves (AUCs) for OS ranging from 0.695 to 0.730 in the validation cohort. DCA confirmed the nomogram's superior clinical utility compared to the TNM staging system.
[CONCLUSIONS] The novel IINS, integrating inflammatory, immune, and nutritional status, is a robust independent prognostic indicator for resected NSCLC. The developed nomogram provides a user-friendly and accurate tool for predicting postoperative survival, potentially aiding in risk stratification and personalized adjuvant therapy decisions.
[METHODS] This multicenter retrospective study enrolled 473 stage I-IIIA NSCLC patients who underwent radical resection. An inflammatory-immune-nutritional integrated scoring system (IINS) was developed using Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression from preoperative hematological parameters. The model was validated internally ( = 142) and externally using the NHANES database ( = 134). A prognostic nomogram incorporating IINS and clinicopathological factors was constructed and evaluated using time-dependent receiver operating characteristic (ROC) curves, calibration plots, and decision curve analysis (DCA).
[RESULTS] The IINS was formulated based on platelet-to-lymphocyte ratio (PLR), systemic inflammatory response index (SIRI), and prognostic nutritional index (PNI). Patients were stratified into high- and low-IINS groups using an optimal cutoff of 4.9. Multivariate analysis identified IINS as an independent prognostic factor for both overall survival (OS) (HR = 1.63, 95% CI [1.17-2.26], = 0.004) and disease-free survival (DFS) (HR = 1.41, 95% CI [1.02-1.97], = 0.039). The nomogram demonstrated good predictive accuracy, with 1-, 3-, and 5-year area under the curves (AUCs) for OS ranging from 0.695 to 0.730 in the validation cohort. DCA confirmed the nomogram's superior clinical utility compared to the TNM staging system.
[CONCLUSIONS] The novel IINS, integrating inflammatory, immune, and nutritional status, is a robust independent prognostic indicator for resected NSCLC. The developed nomogram provides a user-friendly and accurate tool for predicting postoperative survival, potentially aiding in risk stratification and personalized adjuvant therapy decisions.
MeSH Terms
Humans; Carcinoma, Non-Small-Cell Lung; Male; Female; Lung Neoplasms; Middle Aged; Retrospective Studies; Aged; Nomograms; Prognosis; Inflammation; ROC Curve; Nutritional Status; Nutrition Assessment; Neoplasm Staging
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