A case-control study of dietary factors and stomach cancer risk in Poland.
We report results from a case-control study on stomach cancer conducted in 1980-81 in Cracow, Poland, where the risk of this disease is among the highest reported world-wide. One hundred and ten cases from a surgical clinic were matched by age and sex to the same number of controls from the same hospital. A matched series from a population-based health survey was also considered. After adjusting for residency, smoking and various food items, cases and hospital controls showed significant differences in consumption of fruits (RR rarely vs. daily: 3.24; 95% CI: 1.56-6.77), joint consumption of vegetables, salads and fruits (RR low vs. high: 4.23; 95% CI: 1.41-12.63), and consumption of protein-containing foods (RR low vs. high: 0.23; 95% CI: 0.08-0.61). Consumption of strong alcoholic beverages on an empty stomach (before breakfast) was associated with an RR of 2.09 (1.04-4.22). The findings are discussed in relation to the apparent urban/rural difference in stomach cancer incidence in Poland and the possible underlying etiological factors involved.
Jedrychowski
W
W
Wahrendorf
J
J
Popiela
T
T
Rachtan
J
J
D000368:Aged; D000428:Alcohol Drinking; D004032:Diet; D004044:Dietary Proteins; D004522:Educational Status; D005260:Female; D005638:Fruit; D006801:Humans; D008297:Male; D008460:Meat; D008875:Middle Aged; D011044:Poland; D012044:Regression Analysis; D012306:Risk; D012424:Rural Population; D012907:Smoking; D013274:Stomach Neoplasms / Q000209:etiology*; D014675:Vegetables
D004044:Dietary Proteins