Table 3 Tumor regression grade, acute toxicity, late toxicity (a), and analysis of the correlation between MN and NPB yields and TRG, acute and late toxicity (b). Information on tumor regression grade and late toxicity is missing in 3 and 6 patients, respectively

Grade 0

Grade 4

TRG

1

19

 Skin

50

0

 Bladder

63

1

 Rectum

18

2

 Small bowel

51

4

 Skin

110

0

 Bladder

105

1

 Rectum

88

5

Kendall’s τ [CI]

P

Kendall’s τ [CI]

P

Kendall’s τ [CI]

P

Kendall’s τ [CI]

P

TRG

0.09 [−0.04–0.19]

0.18

−0.02 [−0.13–0.10]

0.78

−0.06 [−0.16–0.07]

0.42

−0.12 [−0.21–0.02]

0.09

 Skin

0.10 [−0.01–0.18]

0.13

0.04 [−0.08–0.14]

0.56

0.00 [− 0.12–0.12]

1.00

− 0.09 [− 0.18–0.04]

0.21

 Bladder

− 0.01 [− 0.11–0.10]

0.88

0.06 [− 0.06–0.16]

0.36

0.09 [− 0.04–0.18]

0.21

0.04 [− 0.08–0.13]

0.61

 Rectum

0.13 [0.00–0.21]

0.06

0.02 [− 0.11–0.14]

0.82

− 0.17 [− 0.25 - -0.02]

0.01

− 0.10 [− 0.20–0.03]

0.15

 Small bowel

−0.07 [− 0.17–0.05]

0.28

0.02 [− 0.10–0.13]

0.77

0.04 [− 0.07–0.14]

0.56

0.09 [− 0.04–0.18]

0.21

Late toxicity

0.07 [− 0.06–0.17]

0.30

−0.03 [− 0.15–0.10]

0.67

−0.07 [− 0.16–0.06]

0.33

−0.04 [− 0.14–0.08]

0.61

 Skin

0.00 [− 0.08–0.08]

1.00

−0.12 [− 0.13–0.01]

0.11

0.02 [− 0.07–0.09]

0.75

0.03 [− 0.06–0.09]

0.72

 Bladder

−0.03 [− 0.10–0.07]

0.73

0.01 [− 0.09–0.10]

0.89

−0.10 [− 0.014–0.03]

0.17

−0.03 [− 0–09 - 0.06]

0.68

 Rectum

0.06 [− 0.06–0.14]

0.40

−0.10 [− 0.17–0.03]

0.18

0.04 [− 0.07–0.12]

0.57

0.02 [− 0.09–0.11]

0.83