|  | Cases | Controls |  |
---|---|---|---|---|
Consumption of food | (n = 145) | (n = 370) | OR (95% CI)a | |
Cured meat/fish | Vegetables | Â | Â | Â |
   Rare or occasional |    Rare or occasional | 38 | 82 | 1.00 |
   Frequent |    Rare or occasional | 19 | 15 | 2.73 (1.26–5.96) c |
   Rare or occasional |    Frequent | 56 | 200 | 0.61 (0.37–0.99) b |
   Frequent |    Frequent | 32 | 73 | 0.95 (0.54–1.67) |
Cured meat/fish | Bean-curd food | Â | Â | Â |
   Rare or occasional |    Rare or occasional | 24 | 48 | 1.00 |
   Frequent |    Rare or occasional | 10 | 5 | 4.01 (1.23–13.05) b |
   Rare or occasional |    Frequent | 70 | 234 | 0.60 (0.34–1.05) |
   Frequent |    Frequent | 41 | 83 | 0.99 (0.53–1.83) |
Vegetables | Bean-curd food | Â | Â | Â |
   Rare or occasional |    Rare or occasional | 19 | 25 | 1.00 |
   Frequent |    Rare or occasional | 15 | 28 | 0.70 (0.30–1.68) |
   Rare or occasional |    Frequent | 38 | 72 | 0.69 (0.34–1.42) |
   Frequent |    Frequent | 73 | 245 | 0.39 (0.20–0.75) c |