Table 1 Odds ratios (95% CI) for gastric cancer according to selected variables and their frequency distribution among 156 gastric cancer cases and 444 controls
Cases | Controls | OR (95% CI) † | |
|---|---|---|---|
n (%) | n (%) | ||
Age (mean ± SD) | 67.05±11.33 | 59.04±16.00 | |
Male gender | 82 (53.2) | 261 (58.8) | 0.50 (0.30-0.83) |
Alcohol drinkers | |||
0-6 g/day | 60 (40.5) | 251 (57.6) | 1* |
7-29 g/day | 71 (48.0) | 163 (37.4) | 1.84 (1.10- 3.07) |
>= 30 g/day | 17 (11.5) | 22 (5.0) | 3.29 (1.36- 7.98) |
Smoking status | |||
Never | 78 (50.7) | 238 (54.2) | 1* |
Ever | 76 (49.3) | 201 (45.8) | 1.51 (0.94- 2.45) |
Pack-years of smoking | |||
0 | 74 (51.7) | 245 (57.0) | 1* |
1-25 | 31 (21.7) | 111 (25.8) | 1.40 (0.78- 2.50) |
>25 | 38 (26.6) | 74 (17.2) | 1.95 (1.06- 3.60) |
Fruit and vegetables intake | |||
High‡ | 41 (27.5) | 116 (27.2) | 1* |
Low | 108 (72.5) | 310 (72.8) | 1.18 (0.70- 1.98) |
Grilled meat | |||
Low ^ | 106 (75.7) | 314 (81.1) | 1* |
High | 34 (24.3) | 73 (18.9) | 1.25 (0.72- 2.15) |
Physical activity | |||
Any | 29 (18.6) | 93 (20.9) | 1* |
None | 127 (81.4) | 351 (79.1) | 0.81 (0.45- 1.45) |
Family history of cancer | |||
No | 87 (62.2) | 291 (71.2) | 1* |
Family history of gastric cancer | 10 (7.1) | 14 (3.4) | 3.14 (1.17- 8.44) |
Family history of other cancer | 43 (30.7) | 104 (25.4) | 1.09 (0.66- 1.81) |
ApoE allele frequency | |||
ε3 | 130 (85.5) | 322 (80.1) | |
ε2 | 8 (5.3) | 39 (9.7) | |
ε4 | 14 (9.2) | 41 (10.2) | |