Table 2 Univariate analysis of the prognostic factors in HCC patients using a Cox regression model

Ages, year (≥60 vs. < 60)

1.195

0.839–1.702

0.323

Sex (male vs. female)

1.198

0.834–1.720

0.328

Grade (G3–G4 vs. G1–G2)

2.594

1.819–3.701

<0.001

Invasion depth (T3/T4 vs. T1/T2)

2.539

1.767–3.647

<0.001

Lymph node metastasis (N1 vs. N0–Nx)

1.869

0.458–7.543

0.368

Distant metastasis (M1 vs. M0–Mx)

3.681

1.166–11.615

0.026

TNM stage (III–IV vs. I–II)

2.566

1.801–3.657

<0.001

CD97 expression (high vs. low)

1.428

1.003–2.034

0.048