Colorectal cancer (CRC) is one of the most common cancers in China. Although the association between the epidemiological factors and sporadic colorectal cancer has been studied, the relation between smoking, alcohol drinking, family history of cancer, body mass index (BMI) and sporadic colorectal cancer still remains uncertain. So it is important to investigate the role of these factors in the development of sporadic colorectal cancer.
A research team led by Professor Jian-Ping Wang from the Gastrointestinal Institute of Sun Yat-Sen University addressed this question. Their study will be published on May 28, 2009 in the World Journal of Gastroenterology
They conducted a hospital-based case-control study from July 2002 to December 2008 in Guangzhou city. There were 706 cases and 723 controls with their sex and age (within 5 years) matched. An unconditional logistic regression model was used to analyze the association between smoking, alcohol drinking, family history of cancer, BMI and sporadic colorectal cancer.
They found that current alcohol drinking and greater BMI (≥ 24.0 kg/m2) are the independent risk factors for colon and rectal cancer, while former alcohol drinking and positive family history of cancer are the independent risk factors for colon cancer in southern Chinese. Their findings may contribute to the prevention and control of sporadic colorectal cancer. However, because of the uncontrolled bias in selection participants and retrospective design, their findings need to be further evaluated in well-designed larger epidemiological studies with different ethnic populations.
Reference: Wei YS, Lu JC, Wang L, Lan P, Zhao HJ, Pan ZZ, Huang J, Wang JP. Risk factors for sporadic colorectal cancer in southern Chinese. World J Gastroenterol 2009; 15 (20): 2526-2530 http://www.wjgnet.com/1007-9327/15/2526.asp
Correspondence to: Jian-Ping Wang, Professor, MD, Gastrointestinal Institute of Sun Yat-Sen University, Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Yuancunerheng Road 26, Guangzhou 510655, Guangdong Province, China. wjp@mail.sysu.edu.cn
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World Journal of Gastroenterology (WJG), a leading international journal in gastroenterology and hepatology, has established a reputation for publishing first class research on esophageal cancer, gastric cancer, liver cancer, viral hepatitis, colorectal cancer, and H pylori infection and provides a forum for both clinicians and scientists. WJG has been indexed and abstracted in Current Contents/Clinical Medicine, Science Citation Index Expanded (also known as SciSearch) and Journal Citation Reports/Science Edition, Index Medicus, MEDLINE and PubMed, Chemical Abstracts, EMBASE/Excerpta Medica, Abstracts Journals, Nature Clinical Practice Gastroenterology and Hepatology, CAB Abstracts and Global Health. ISI JCR 2003-2000 IF: 3.318, 2.532, 1.445 and 0.993. WJG is a weekly journal published by WJG Press. The publication dates are the 7th, 14th, 21st, and 28th day of every month. WJG is supported by The National Natural Science Foundation of China, No. 30224801 and No. 30424812, and was founded with the name of China National Journal of New Gastroenterology on October 1, 1995, and renamed WJG on January 25, 1998.
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