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KMID : 0988920140120020131
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Intestinal Research
2014 Volume.12 No. 2 p.131 ~ p.138
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Clinicopathological Characteristics of Colon Cancer Diagnosed at Primary Health Care Institutions
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Park Sang-Hyun
Song Chi-Wook
Kim Yun-Bae
Kim Young-Sun
Chun Hwang-Rae
Lee Jung-Hyun
Seol Won-Jong
Yoon Hyung-Sun
Lee Myung-Kwon
Lee Jong-Hyup
Bhang Choon-Sang
Park Jae-Hyung
Park Ji-Young
Do Byung-Hun
Park Young-Dae
Yoon Sang-Jeong
Park Chan-Wook
Yoon Su-Mi
Choi Jong-Hwan
Shin Ki-Chul
Ko Dong-Hoon
Kim Young-Jin
Seol Dong-Choon
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Abstract
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Background/Aims: The purpose of this study was to evaluate the clinicopathologic characteristics of colon cancers detectedat the SOK Sokpeynhan Internal Medical Network, a nationwide system of primary health care institutions.
Methods: Weanalyzed 579 colon cancer patients diagnosed using colonoscopy at the SOK network from January 2011 through December2012. Cancers from the rectum to the splenic flexure were classified as left colon cancer. Patients over 65 were classified assenior.
Results: The mean age (±SD) of subjects was 60.9±10.5 years and 61.1% were men. More than one quarter (28.2%) ofpatients were asymptomatic. The prevalence of left colon cancer was higher (77.9%) than that for right colon cancer. The mostfrequent macroscopic and histologic types were depressed (58.9%) and moderately differentiated adenocarcinoma (52.2%),respectively. Asymptomatic subjects displayed protruding or well differentiated adenocarcinoma, while symptomatic patientswere more likely to display depressed or moderately differentiated adenocarcinoma (P <0.05). The mean age of the right coloncancer group was higher than that for the left colon cancer group (P <0.05). Among symptomatic patients, the most frequentsymptoms were bloody stool for patients with left colon cancer and abdominal discomfort for patients with right colon cancer(P <0.05). The prevalence of depressed cancer was higher in older subjects as compared to younger subjects (P <0.05). Theprevalence of right colon cancer tended to increase with age, although this difference did not achieve statistical significance(P >0.05).
Conclusions: Study results indicated an increase of colon cancer amongst younger demographics in recent years.The effectiveness of colonoscopy screening was also evident, as asymptomatic patients demonstrated frequent findings of welldifferentiated adenocarcinomas. Study results also suggested a need for closer examination of older patients, as right coloncancer tended to increase with age. (Intest Res 2014;12:131-138)
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KEYWORD
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Colonic neoplasms, Population characteristics, Primary health care
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