Table 2 Comparison of clinical variables and radiomics score in the responding group and non-responding group in the training cohort

Age (years, mean ± SD)

56.76 ± 11.42

52.85 ± 11.91

Gender

 Male

24

24

 Female

13

13

BMI (kg/m²)

21 ± 3

21 ± 4

AFP (ng/mL)

8.95 ± 13.51

7.86 ± 17.55

CEA (IU/L)

 Normal

26

24

 Elevated

11

13

CA199 (IU/L)

 Normal

32

32

 Elevated

5

5

CA125 (IU/L)

 Normal

36

37

 Elevated

1

0

Preoperative T stage

 2

0

1

 3

8

3

 4

29

33

Preoperative N status

 0

2

0

 1

13

8

 2

18

21

 3

4

8

Preoperative M status

 0

28

19

 1

9

18

Radiomics score

0.54 ± 0.22

0.41 ± 0.22