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A case‐control study of dietary factors and stomach cancer risk in Poland
Author(s) -
Jedrychowski W.,
Wahrendorf J.,
Popiela T.,
Rachtan J.
Publication year - 1986
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.2910370607
Subject(s) - medicine , stomach cancer , etiology , stomach , incidence (geometry) , cancer , relative risk , case control study , population , risk factor , disease , gastroenterology , environmental health , demography , surgery , confidence interval , physics , sociology , optics
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% Cl: 1.56–6.77), joint consumption of vegetables, salads and fruits (RR low vs. high: 4.23; 95% Cl: 1.41–12.63), and consumption of protein‐containing foods (RR low vs. high: 0.23; 95% Cl: 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.