[Risk factors in the manifestations of the 5 principal forms of cancer in the People's Republic of Mongolia].

Epidemiological studies were conducted in Mongolia on 1,263 cases of cancer compared to 2,526 healthy controls in order to uncover risk factors for cancer of the oesophagus, stomach, lungs, liver and cervix of the uterus. Risk factors found included: consumption of large amounts of hot tea, or salted hot tea with roast flour and cereals, the habit of eating meat at the evening meals and eating half-chewed food (oesophageal cancer); meat at evening meals, eating hot food, hurried eating, consumption of stale foods, large amounts of hot tea, regular alcohol intake (gastric cancer); viral hepatitis, eating habits and alcohol intake (primary cancer of the liver); smoking, regular alcohol intake (alcohol drinkers tend to smoke heavily) (lung cancer); early menarche, repeated marriages, deliveries at early ages (before 18 years of age) and repeated deliveries.