Predicting tumor response after preoperative chemoradiation using clinical parameters in rectal cancer

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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. Dec 28, 2011; 17(48): 5310-5316
Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5310

Table 1 Patient demographics and tumor characteristics in the test and validation sets n (%)

Characteristics	Test set	Validation set
Total number of patients	249 (100)	15 (100)
Median age (yr, ranges)	55, 24-81	56, 33-74
Sex
Male	177 (71.1)	11 (73.3)
Female	72 (28.9)	4 (26.7)
Low margin from anal verge (cm)
≤ 5	187 (75.1)	12 (80)
> 5	62 (24.9)	3 (20)
Histological type
Adenocarcinoma	238 (95.6)	14 (93.3)
Mucinous	9 (3.6)	1 (6.7)
Signet ring cell	2 (0.8)	0 (0)
Surgery
Abdominal-perineal resection	37 (14.9)	0 (0)
Low anterior resection	208 (83.5)	14 (93.3)
Hartmann’s operation	4 (1.6)	1 (6.7)
Chemotherapy regimen¹
FL group	200 (80.6)	9 (60)
Capecitabine group	48 (19.4)	6 (40)
Median interval to surgery (d, ranges)	55, 26-120	54, 41-78

¹Missing data: n = 1, test set; FL: 5-fluorouracil and leucovorin.

Citation: Park CH, Kim HC, Cho YB, Yun SH, Lee WY, Park YS, Choi DH, Chun HK. Predicting tumor response after preoperative chemoradiation using clinical parameters in rectal cancer. World J Gastroenterol 2011; 17(48): 5310-5316
URL: https://www.wjgnet.com/1007-9327/full/v17/i48/5310.htm
DOI: https://dx.doi.org/10.3748/wjg.v17.i48.5310

Park CH, Kim HC, Cho YB, Yun SH, Lee WY, Park YS, Choi DH, Chun HK. Predicting tumor response after preoperative chemoradiation using clinical parameters in rectal cancer. World J Gastroenterol 2011; 17(48): 5310-5316 [PMID: 22219601 DOI: 10.3748/wjg.v17.i48.5310]

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