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. 2024 Mar 14;12:e17098. doi: 10.7717/peerj.17098

Table 5. Confusion matrix of XGBoost model on internal and external test sets.

Internal Test Set Actual External Test Set Actual
BM NBM BM NBM
Predictive BM 778 973 Predictive BM 7 5
NBM 311 4504 NBM 8 105

Notes.

NMB
no bone metastasis
BM
bone metastasis