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Table 1 Odds Ratios (95% CI) of gastric cancer according to the collected variables and their frequency distribution among 107 cases and 254 controls

From: Polymorphisms in metabolic genes, their combination and interaction with tobacco smoke and alcohol consumption and risk of gastric cancer: a case-control study in an Italian population

  Cases % (n) Controls % (n) OR (95% CI) †
Age (years ± SD) 66.4 ± 12.0 64.0 ± 12.8 -
Male gender 52.3 (56) 55.5 (141) -
Alcohol drinkers    
   Non-drinkers° 29.9 (32) 47.6 (121) 1*
   Drinkers 70.1 (73) 52.4 (133) 2.10 (1.22–3.60)
Smoking status    
   Never 53.3 (57) 57.5 (146) 1*
   Ever 46.7 (50) 42.5 (108) 1.10 (0.64–1.90)
Fruit and vegetables intake    
   High‡ 20.0 (21) 15.8 (40) 1*
   Low 80.2 (85) 84.2 (213) 0.95 (0.50–1.90)
Grilled meat    
   ≤ 2 times/month 52.3 (56) 48.4 (123) 1*
   > 2 times/month 47.7 (61) 51.6 (131) 0.99 (0.60–1.66)
Meals salt addition^    
   No 85.1 (91) 92.9 (235) 1*
   Yes 14.9 (16) 7.1 (18) 1.70 (0.78–3.67)
Familiarity for cancer    
   No 61.6 (61) 78.4 (192) 1*
   Yes 38.4 (38) 21.6 (53) 1.93 (1.14–3.26)
Familiarity for gastric cancer    
   No 88.0 (88) 94.4 (237) 1*
   Yes 12.0 (12) 5.6 (14) 1.88 (0.80–4.44)
  1. * Reference category; † OR adjusted for age, gender, alcohol consumption and familiarity for cancer; ‡ High fruit and vegetables consumption is defined as at least 2 portions of fruit and 2 portions of vegetables per day; ° Non-drinkers defined as an alcohol intake less than 7 g/day; ^ adding salt to the entrées during the main meals