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Table 1 patient characteristics

From: Simulation CT-based radiomics for prediction of response after neoadjuvant chemo-radiotherapy in patients with locally advanced rectal cancer

Characteristic

No. of patients (%), n = 201

Tübingen cohort (%), n = 126

Florence cohort (%), n = 75

p value

Median age

years (IQR)

65 (56–72)

63 (53.7–71.2)

67 (58–74)

0.041

Sex

    

Male

133 (66.1%)

81 (64.3%)

52 (69.3%)

0.538

Female

68 (33.9%)

45 (35.7%)

23 (30.7%)

 

Staging (TNM/AJCC 7th ed.)

cT2N1/N2

11 (5.5%)

7 (5.5%)

4 (5.3%)

0.655

cT3N0

41 (20.4%)

22 (17.5%)

19 (25.3%)

cT3N1/N2

127 (63.2%)

81 (64.3%)

46 (61.4%)

cT4anyN

22 (10.9%)

16 (12.7%)

6 (8%)

Primary location

Low rectum

89 (44.3%)

50 (39.7%)

39 (52%)

0.148

Middle rectum

101 (50.2%)

70 (55.5%)

31 (41.3%)

High rectum

11 (5.5%)

6 (4.8%)

5 (6.7%)

Median time interval (end of RT- surgery) weeks (IQR)

7 (6–9)

6 (5–7) *

9 (8–11)

 < 0.0001

  1. IQR, Interquartile range; RT, Radiotherapy; *: 9 missing values; °: N1 included N1a, N1b, N1c; N2 included N2a and N2b