Mann-Whitney’s U test

Characteristic

Number

Staining score of p16

p value

Age (yrs)

<50

7

3.28

≥50

10

3.9

0.524

Clinical stage (FIGO)

I

11

3.0

II-IV

6

4.8

0.049

Tumor Size (cm)

<10

5

4.2

≥10

12

3.4

0.449

Necrosis (%)

<30

8

2.8

≥30

9

4.3

0.110

Degress of myometrial invasion

Surface

6

4.5

Deep

11

3.1

0.171

Mitosis (mean mitoses/10 HPF)

<10

10

2.7

≥10

7

5.0

0.0074

Recurrence

No

10

2

Yes

7

4.7

0.0446