Table 2

Predictors of gastric cancer in the logistic regression model and the associated prediction rule

VariableRegression coefficientAdjusted OR (95% CI)P valuePoints assigned*
Age, years
 40–49Reference0
 50–591.0202.77 (1.72 to 4.47)<0.0014
 60–691.4614.31 (2.69 to 6.89)<0.0016
 >692.1608.67 (5.32 to 14.13)<0.0019
Sex
 FemaleReference0
 Male0.9222.52 (1.92 to 3.30)<0.0014
Pickled food
 OccasionalReference0
 Regular0.3961.49 (1.10 to 2.01)0.0102
Fried food
 OccasionalReference0
 Regular0.5351.71 (1.15 to 2.54)0.0082
Anti-H. pylori IgG, EIU
 Negative (<34)Reference0
 Positive (≥34)0.2331.26 (1.12 to 1.62)0.0461
PG I/II ratio
 ≥3.89Reference0
 <3.890.7022.02 (1.41 to 2.90)<0.0013
G-17, pmol/L
 ≤1.49Reference0
 1.50–5.700.6932.00 (1.33 to 3.00)0.0013
 >5.701.0442.84 (1.93 to 4.17)<0.0014
  • *Points were assigned by dividing the regression coefficients by the absolute value of the smallest coefficient in the model and rounding up to the nearest integer. A regression coefficient of 0.233 corresponded approximately to one point.

  • EIU, enzyme-immunoassay unit; G-17, gastrin-17; H. pylori, Helicobacter pylori; PG, pepsinogen.