Table 1.

Demographic feature of gastric cancer cases and controls

Case*
Control
CardiaNoncardia
IntestinalDiffuse
n221521471,048
Male:female12:1092:6088:59617:431
Age at the time of bombing27 (14)27 (9.7)27 (12)26 (11)
Age at diagnosis71 (11)71 (9.3)68 (11)
Age at serum storage69 (11)69 (9.3)65 (11)67 (11)
City Hiroshima:Nagasaki13:9100:5283:64641:407
Stomach dose, mean (upper and lower boundary) [no. unknown]0.20 (0, 1.80) [2]0.38 (0, 3.03) [24]0.49 (0, 3.02) [16]0.41 (0, 3.2) [94]
H. pylori IgG(+)18/22 (82%)134/152 (88%)133/145 (92%)821/1,042 (79%)
CagA ≥ 15, <236/22 (27%)23/152 (15%)22/145 (15%)68/1,042 (6.5%)
CagA ≥ 2311/22 (50%)91/152 (60%)96/145 (66%)616/1,042 (59%)
CAG15/22 (68%)112/152 (74%)94/145 (65%)502/1,042 (48%)
Current smoker9/22 (41%)85/148 (57%)86/140 (61%)518/1,021 (51%)
  • * One case of unknown location is not included in the table. Two noncardia cases of unknown histology and 34 noncardia gastric cancer of histologic types other than intestinal or diffuse types were included in analyses for “all noncardia” tumors but are not included in the table.

  • Some controls are associated with more than one case (see text).

  • Sample mean (sample SD).