Patient characteristics

RR

95% CI

p value

Age (?75 years)

1.002

(0.429 - 2.239)

0.996

Sex (male)

1.709

(0.885 - 3.312)

0.11

Depth of tumor invasion (T1/T2)

0.448

(0.1807 - 1.056)

0.067

Lymph node metastasis (present)

2.309

(1.058 - 5.218)

0.035

Distant metastasis (present)

11.27

(3.808 - 34.79)

<0.001

**

Historical Type (pap/well/moderate)

0.385

(0.173 - 0.891)

0.027

CEA (?5)

1.875

(0.780 - 4.574)

0.161

CA19-9 (?5)

0.839

(0.447 - 1.554)

0.577

AQP-1 (positive)

0.324

(0.155 - 0.650)

0.001

**