Molecular and Survival Differences between Familial and Sporadic Gastric Cancers

Table 4

The frequency of MLH1 promoter methylation and MLH1 mutation in GC patients with abnormal MLH1 expression.

	Sporadic GC	Familial GC
	(𝑛=3)	(𝑛=9)
	𝑛 (%)	𝑛 (%)
MLH1 promoter
Methylation	3 (100)	5 (55.6)
Unmethylation	0	4 (44.4)
MLH1 mutation
Yes	0	1 (11.1)
No	3 (100)	8 (88.9)