CSTB and gastric cancer: According to multivariable logistic regression analysis, salivary CSTB level (OR = 0.89; 95% CI = 0.81 to 0.98, p = 0.1), DMBT1 level (OR = 1.02; 95% CI = 1.00 to 1.05, p = 0.05), occupation status (OR (low vs. moderate-to-high stress level) = 0.07; 95% CI = 0.01 to 0.40, p = 0.003) and educational level (OR (Diploma and higher vs. primary and secondary) = 0.03; 95% CI = 0.003 to 0.29, p = 0.003) were the significant determinants of developing GC.