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Table 2 Pathological response with different duration of radiotherapy

From: Comparing neoadjuvant long-course chemoradiotherapy with short-course radiotherapy in rectal cancer

Clinical variable Radiotherapy duration χ2 P value
SC (%) LC (%)
ypT
0
1
2
3
4
8 (25.00)
4 (12.50)
9 (28.13)
10 (31.25)
1 (3.12)
25 (18.12)
8 (5.80)
26 (18.84)
23 (16.67)
56 (40.57)
22.16 < 0.01*
T downstaging
No
Yes
12 (37.50)
20 (62.50)
73 (52.90)
65 (47.10)
2.46 0.12*
ypN
0
1
2
24 (75.00)
8 (25.00)
0 (0.00)
103 (74.64)
23 (16.67)
12 (8.69)
0.15**
N downstaging
No
Yes
2 (6.25)
30 (93.75)
38 (27.54)
100 (72.46)
6.54 0.01*
pCR
Yes 8 (25.00) 25 (18.12) 0.79 0.38*
No 24 (75.00) 113 (81.88)   
  1. pCR, complete pathological response
  2. *: χ2 test, **: Fisher exact test