Characteristics of SPS cases in the study.

*minimum number of polyps observed, polyp count may be a cumulative count. ≠The frequency of individuals with SPS that meet WHO criteria 1 or 3, where individuals that met WHO criteria 2 only weren’t included. ∧WHO criteria could not be determined as polyp count listed as “multiple” but >5.* 观测到的息肉最小计数，息肉计数可采用累计计数方式。 ≠ 符合世界卫生组织（World Health Organization, WHO）标准1或3的锯齿状息肉综合征（Serrated Polyposis Syndrome, SPS）患者的检出频率，仅符合WHO标准2的个体未被纳入统计范围。 ∧ 当息肉计数标注为"多发"且数量大于5时，无法判定是否符合WHO标准。