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Table 4 Target point and data processing of machine learning

From: Machine learning-based survival rate prediction of Korean hepatocellular carcinoma patients using multi-center data

Target Explanation
Mortality 0: Alive
1: Expired
Overall survival time Death or Last follow up date—First treatment date
Treatment 1: Surgical resection
2: Liver transplantation
3: Local ablation therapy(RFA)
4: Transarterial therapy (TACE)
5: Others
9,999,999: missing data