APOB and polyposis: In the patient group, ApoB and ApoB/ApoA1 ratio were significantly greater than the control group in males (p<0.05) (Supplementary Table 1), while there have no significant difference in females (p>0.05) (Supplementary Table 2).The levels of TG, TG/HDL-C ratio in the multiple polyps subgroup were significantly higher than those in the single polyp subgroup (p<0.05) (Table 3).