Parameter

Chi-square value

RR (95% CI)

P value

N stage (Negative/Positive)

16.2

5.9 (2.5 - 13.9)

<0.01

T stage (T2/T3)

6.2

4.8 (1.4 - 16.6)

0.01

Ezrin expression (Positive/Negative)

7.9

4.4 (1.6 - 12.3)

<0.01

Intraoperative blood loss (Low/High)

1.9

2.1 (0.7 - 6.2)

0.16

Gender (Female/Male)

1.4

1.7 (0.7 - 4.3)

0.23

Lymph vessel invasion (Negative/Positive)

0.3

1.4 (0.4 - 5.8)

0.61

Tumor size (≥ 5 cm /< 5 cm )

0.4

1.4 (0.5 - 3.7)

0.54

Age (≥65 yrs/<65 yrs)

0.0

1.1 (0.5 - 2.5)

0.83

Blood vessel invasion (Negative/Positive)

0.0

1.0 (0.4 - 3.0)

0.93