In this multivariable analysis, there was still strong evidence of an association with increased risk of gastric cancer for age (P < 0.0001), BMI (P < 0.0001), total cholesterol (P < 0.0001), HDL-cholesterol (P < 0.0001), apoA1 (P < 0.0001), and apoA1/B ratio (P < 0.0001). Here, APOA1 is linked to gastric cancer.