Individual having a parent with early-onset gastric cancer may need screening at younger age

Table 3 Age at diagnosis of patient with first-degree family member diagnosed gastric cancer before and after 50 years old

Family member diagnosed before 50 yr old(n = 172)		Family member diagnosed after 50 yr old(n = 752)	P value
Father	47.7 ± 10.3	55.3 ± 10.1	< 0.0011
	(n = 39)	(n = 310)
Mother	48.6 ± 10.4	58.2 ± 9.5	< 0.0011
	(n = 24)	(n = 205)
Sibling	57.4 ± 11.5	64.3 ± 8.1	< 0.0011
	(n = 100)	(n = 219)
Total	54.6 ± 10.5	58.8 ± 10.2	< 0.0011

¹Independent t-test. Data are presented as mean ± SD.