Table 2 Multivariate Cox regression analysis of the clinicopathogical parameters for overall survival and progression free survival

FIGO stage (early stage vs. advanced stage)

1.127

0.357–3.562

0.838

1.744

0.576–5.288

0.325

Histologic grade (well vs. poor and moderate)

0.615

0.256–1.475

0.276

0.904

0.393–2.077

0.811

Ascites (no vs. yes)

0.850

0.381–1.897

0.692

0.667

0.337–1.323

0.247

LN metastasis (no vs. yes)

0.924

0.460–1.856

0.823

0.786

0.410–1.506

0.468

Age (≤50 vs. >50 years)

2.920

1.466–5.815

0.002

2.403

1.302–4.435

0.005

Preoperative CA125 (U/ml) (≤600 vs. >600)

0.548

0.280–1.073

0.079

0.327

0.177–0.607

0.000

DOT1L expression (low vs. high)

4.705

2.160–10.248

0.000

8.884

3.974–19.861

0.000