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Table 1 Clinical factors of patients with non-pCR and pCR in the training and validation datasets

From: CT-based delta-radiomics nomogram to predict pathological complete response after neoadjuvant chemoradiotherapy in esophageal squamous cell carcinoma patients

Characteristic

Training dataset

Validation dataset

Gender

  

 Male

139

37

 Female

47

9

ECOG PS

  

 0–1

144

38

 2

42

8

Alcohol history

  

 Yes

114

34

 No

72

12

T stage

  

 T1-2

43

5

 T3

81

19

 T4

62

22

N staging

  

 0–1

66

20

 2–3

120

26

Degree of differentiation

 Low

47

13

 Middle-high

139

33

Location

  

 Upper

26

14

 Middle

58

16

 Lower

102

16

nCRT response

  

 Non-pCR pCR

127

59

29

17

  1. ECOG PS Eastern Cooperative Oncology Group Performance Status, nCRT neoadjuvant chemoradiotherapy, pCR pathological complete response