Investigation of Risk Factors of Digestive System Cancer in Sudan

The digestive system GIT cancer, from the esophagus to the rectum, remains one of the most common cancers and causes of cancer death worldwide in both men and women. A total of 200 digestive system GIT cancer patients and 200 control cases were interviewed using purposively designed questionnaires. The goal of this research is to investigate the logistic regression methods are able to give improved prediction in risk factors of digestive system GIT cancer. Logistic regression have been used for modeling the probability that a person developed digestive system GIT cancer as a function of age, gender, tribe, height, weight, address as states, blood group type, cancer type, cancer stage, follow diet (vegetables), canned food, spicy food & food containing aflatoxin, diabetic, hypertensive, AIDS, jaundice with type (HA, HB and HC), anemia, regular tab, any digestive surgery and past history of digestive system GIT disease and cancer in the patients family, gastroesophageal reflux, endoscopy, achalasia disease, gallstone and chclecstystilis of the gallbladder, gallbladder polyps, chronic typhoid, chronic pancreatitis, heartburn, a persistent malaria, Helicobacter pylori infection and hypertrophic gastropathy, schistosomiasis, polyps, ulcerative colilis, Crohn disease, inflammatory bowel disease and sigmodiscopy, smoking, shaisha, snuff, consumed of alcohol; and the time period for each of that, drinking very hot liquids, physical activities, sources of drinking water, herbs used for treatment and lastly accessibility to RICK and Khartoum. The research  introduced the interpretation of the fitted logistic regression model. Thus, the patients of digestive system GIT cancer have been showed that diet (vegetables), digestive surgery, achalasia disease, inflammatory bowel disease, viral hepatitis type, schistosomiasis, herbs used for treatment, sources of drinking water and accessibility to RICK & Khartoum are significantly increasing the risk of digestive system GIT cancer more than the other variables and the total cancer trend was increasing over time in Sudan.