Comparative models on low multiplier DRG classification for advanced lung cancer

Objective: This study aimed to compare the performance of machine learning models in predicting low multiplier DRGs for advanced lung cancer, and to identify the optimal algorithm along with key influencing factors. Methods: Prediction models for low multiplier DRGs in advanced lung cancer were developed using four machine learning algorithms: logistic regression, hybrid naive Bayes, support vector machine (SVM), and random forest. Model performance was evaluated, and key contributing features were identified. Results: The random forest algorithm achieved the highest AUC, accuracy, and precision across all three ER group, indicating robust performance. Second, cost-related features and length of hospital stay (LoS) reflecting "resource consumption" contributed significantly more to the low multiplier DRGs prediction than demographic factors such as gender and age. Conclusion: Based on comorbidity severity, the DRG classification for advanced lung cancer patients receiving internal medicine treatment under ER1 appeared reasonably structured and provided a valid basis for subgroup comparisons. Additionally, according to the predictive model's findings, potential signs of upcoding and intentional underuse of reimbursable medications were observed, highlighting the need to monitor examination fee reductions across ER1 subgroups and to track medication costs in ER11 throughout the hospital stay. Lastly, in predicting low multiplier DRGs, larger datasets improve model stability. Model choice should align with the analytical goal: Random Forest offers higher precision and robustness, while logistic regression or SVM may be preferred for higher recall

Comorbidity · COPD · Logistic regression · Lung cancer · MEDLINE · Support vector machine · Economic and Financial Impacts of Cancer · Lung Cancer Research Studies · Lung Cancer Treatments and Mutations

• Support-Vector Networks

  Open Access•Corinna Cortes, Vladimir Vapnik•Machine Learning•1995

  Add to list

• Random Forests

  Open Access•Leo Breiman•Machine Learning•2001

  Add to list

• Prediction and the influencing factor study of colorectal cancer hospitalization costs in China based on machine learning-random forest and support vector regression

  Open Access•Jun Gao, Yan Liu•Frontiers in Public Health•2024

  Add to list

• The end of an era? Activity-based funding based on diagnosis-related groups

  Open Access•Ricarda Milstein, Jonas Schreyögg•Health Policy•2024

  Add to list