Table 3

Relationship between microsatellite instability status and clinicopathological features of adenomas

n MSS 3-a MSI-L3-b MSI-H3-c p Value d
Sex
 Male9315
 Female2137110.7730
Age (y)
 <406303
 40–599144
 60+152490.7048
Location
 Proximal colon8017
 Distal colon2266100.691
Size (mm)
 <514329
 5-99234
 10+73130.5148
Dysplasia
 Low grade13463
 High grade1722130.004

  • ↵3-a MSS (microsatellite stable), no microsatellite instability at nine markers;

  • ↵3-b MSI-L, microsatellite instability at less than 40% of markers;

  • ↵3-c MSI-H, microsatellite instability at 40% or more markers.

  • 3-d Fisher's exact test for MSS and MSI-Lv MSI-H for each clinical feature.