Table 2 The effect of demographic and clinical baseline variables on locoregional recurrence using binary logistic regression model in studied patients

Age

0.98

0.02

0.136

0.98

0.02

0.386

Gender

Male

-

-

-

Female

0.87

0.41

0.735

TNM stage

pCR

-

-

-

-

-

-

T1,2

3.43

0.72

0.085

3.56

0.73

0.081

T3,4

3.29

0.73

0.105

3.45

0.77

0.107

 N positive

5.41

0.67

0.012

5.41

0.69

0.014 *

Surgical technique

NOSE

-

-

-

-

-

-

TASE

0.26

0.63

0.031

0.27

0.70

0.063

Tumor location

low

-

-

-

-

-

-

Mid

0.42

0.57

0.126

0.59

0.61

0.388

Upper

0.68

0.58

0.680

1.31

0.70

0.704

Circumferential margin involvement

Free

-

-

-

Closed/involved

3.83

1.24

0.279

Distal margin involvement

Free

-

-

-

-

-

-

Closed/involved

2.74

0.62

0.103

1.62

0.65

0.462