Tumor regression grades: Potential outcome predictor of locally advanced rectal adenocarcinoma after preoperative radiotherapy

doi:10.3748/wjg.v21.i6.1851

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Feb 14, 2015; 21(6): 1851-1856
Published online Feb 14, 2015. doi: 10.3748/wjg.v21.i6.1851

Table 3 Comparison between tumor regression grades and demographic and clinic variables n (%)

Parameter	TRG1 + 2	TRG3 + 4 + 5	P value
Sex
Male	17 (70.8)	101 (60.8)	0.379
Female	7 (29.2)	65 (39.2)	Fisher's Test
Age (yr)
< 65	15 (62.5)	114 (68.7)	0.284
≥ 65	9 (37.5)	52 (32.3)	Fisher's Test
Tumor height (cm)
< 6	10 (41.7)	104 (62.7)	0.050¹
≥ 6	14 (58.3)	62 (27.3)	χ² =3.847
Clinical stage
II	5 (20.8)	25 (15.1)	0.547
III	19 (79.2)	141 (84.9)	Fisher's Test
Surgical procedure
LAR	20 (83.3)	107 (64.5)	0.173
APR + other	4 (16.7)	59 (35.5)	Fisher's Test
Pathological N-stage
ypN0	18 (75.0)	85 (51.2)	0.031¹
ypN1	6 (25.0)	81 (48.8)	Fisher's Test
Pathological T-stage
ypT0-2	18 (75.0)	47 (28.3)	0.000¹
ypT3-4	6 (25.0)	119 (71.7)	Fisher's Test

¹Fisher's exact test 2-sided. TRG: Tumor regression grades.

Citation: Peng YF, Yu WD, Pan HD, Wang L, Li M, Yao YF, Zhao J, Gu J. Tumor regression grades: Potential outcome predictor of locally advanced rectal adenocarcinoma after preoperative radiotherapy. World J Gastroenterol 2015; 21(6): 1851-1856
URL: https://www.wjgnet.com/1007-9327/full/v21/i6/1851.htm
DOI: https://dx.doi.org/10.3748/wjg.v21.i6.1851