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HOME > Ann Coloproctol > Volume 30(3); 2014 > Article
Letter to the Editor
 Reply on "Data on the Characteristics and the Survival of Korean Patients With Colorectal Cancer From the Korea Central Cancer Registry"
Hyoung-Chul Park, Bong Hwa Lee
Annals of Coloproctology 2014;30(3):153-153.
DOI: https://doi.org/10.3393/ac.2014.30.3.153
Published online: June 23, 2014

Korea Colorectal Cancer Study Group (KOCCS), Seoul, Korea.

Correspondence to: Bong Hwa Lee, M.D. Department of Surgery, Hallym University Sacred Heart Hospital, 22 Gwanpyeong-ro 170beon-gil, Dongan-gu, Anyang 431-796, Korea. Tel: +82-31-380-3772, Fax: +82-31-380-0157, bslee@hallym.ac.kr

© 2014 The Korean Society of Coloproctology

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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To the editor
Thank you for great interest to our article. Your comment has persuaded me to make a further analysis. I agree with your mention about difference of tumor distribution between Korea and Europe/America. The Korean patients showed a lower proportion of right sided colon cancer than European and American patients, which may represent geographical differences [1].
I would like to comment to stage distribution and survival. Recent report in America about stage distribution demonstrated that only 39% of colorectal cancer patients had localized-stage disease and about 34%-41% had regional disease, which was somewhat different to your table. They also reported that the 5-year relative survival in localized disease was 90%, and survival diagnosed at the regional and distant stage were 70% and 12%, respectively [2].
Nevertheless, Korean patients showed favorable survival. The intensive treatment and surveillance system under the national medical insurance may influence on this finding. For example, most Korean patients (more than 80%) in regional disease received adjuvant chemotherapy after surgery. Introduction of adjuvant chemotherapy was associated with improved survival in stage III colon cancer [3].
In addition, we included colorectal cancer patients recently developed; therefore, it may influence on favorable survival. Survival of colorectal cancer has improved in Europe and America [4, 5].
  • 1. Park HC, Shin A, Kim BW, Jung KW, Won YJ, Oh JH, et al. Data on the characteristics and the survival of korean patients with colorectal cancer from the Korea central cancer registry. Ann Coloproctol 2013;29:144–149. ArticlePubMedPMC
  • 2. American Cancer Society. Cancer facts & figures 2011-2013. Atlanta: American Cancer Society; 2011.PubMed
  • 3. Moertel CG, Fleming TR, Macdonald JS, Haller DG, Laurie JA, Goodman PJ, et al. Levamisole and fluorouracil for adjuvant therapy of resected colon carcinoma. N Engl J Med 1990;322:352–358. ArticlePubMed
  • 4. Verdecchia A, Francisci S, Brenner H, Gatta G, Micheli A, Mangone L, et al. Recent cancer survival in Europe: a 2000-02 period analysis of EUROCARE-4 data. Lancet Oncol 2007;8:784–796. ArticlePubMed
  • 5. Altekruse SF, Kosary CL, Krapcho W, Neyman N, Aminou R, Waldron W, et al. SEER cancer statistics review, 1975-2007. Bethesda: National Cancer Institute; 2010.

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        Reply on "Data on the Characteristics and the Survival of Korean Patients With Colorectal Cancer From the Korea Central Cancer Registry"
        Ann Coloproctol. 2014;30(3):153-153.   Published online June 23, 2014
        DOI: https://doi.org/10.3393/ac.2014.30.3.153
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      Reply on "Data on the Characteristics and the Survival of Korean Patients With Colorectal Cancer From the Korea Central Cancer Registry"
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