Wang ZH, Jin YS, Chen ZY. Clinical and epidemiological features of colorectal cancer in Dalian.
Shijie Huaren Xiaohua Zazhi 2015;
23:1191-1195. [DOI:
10.11569/wcjd.v23.i7.1191]
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Abstract
AIM: To investigate the clinical and epidemiological characteristics of colorectal cancer (CRC) in Dalian, China from 2007-2011, and provide epidemiological evidence for early prevention and treatment of CRC.
METHODS: Clinical and epidemiological data for 993 newly treated CRC patients at Dalian Central Hospital from 2007 to 2011 were retrospectively reviewed. Clinical and pathological characteristics, treatment and prognosis of CRC were analyzed.
RESULTS: The average age of the 993 patients with CRC was 66.7 years, and the ratio of male to female is 1.19:1. The prevalence of right colon cancer in females was higher than that in males (P < 0.05). The ulcer-type moderately differentiated adenocarcinoma was the most common type, and Ducks B, C and D disease accounted for 95.3%. Bloody stools, abdominal pain, and change in bowel habits were the most common clinical symptom (69.3%), and the most common complication was colorectal polyps. Patients with O-type blood accounted for 34.3%, and those with B-type blood accounted for 27.3%. Main treatment for CRC was surgical operation (82.5%), and the most common site of metastasis was the liver (42.4%). Postoperative recurrence was most commonly seen at 18 mo (76.9%). Joint detection of carcinoembryonic antigen (CEA) and carbohydrate antigen 199 (CA199) (>60%) was better than detection of either marker in the diagnosis of the disease.
CONCLUSION: Patients with newly diagnosed CRC usually have middle-late stage disease in Dalian, and the median age of onset is 69 years. Bloody stools, abdominal pain, and change in bowel habits are the most common clinical symptoms, and the most common complication is colorectal polyps. The main treatment for CRC is surgical operation, and the most common site of metastases is the liver. The constituent ratio of poorly-moderately differentiated adenocarcinoma increases, and the poorly differentiated adenocarcinoma has a decreasing trend.
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