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. 2013 Dec 10;8(12):e82750. doi: 10.1371/journal.pone.0082750

Table 4. Prognostic score models.

Overall survival
Progression-free survival
Factors n (HR=en) Score Factors n (HR=en) Score
Age (>45y) 0.64 1 EBV DNA (≥4000 copies/ml) 0.41 1
N stage (N2-3) 0.47 1 MPO rs2243828 (CT/CC) 1.16 3
EBV DNA (≥4000 copies/ml) 0.46 1 ERCC1 rs3212986 (CC) 0.54 1
MPO rs2243828 (CT/CC) 0.90 2 MDM2 rs2279744 (GT/GG) 0.56 1
ABCB1 rs2032582 (AT/AA) 0.69 2