From: Effect of genetic ancestry to the risk of susceptibility to gastric cancer in a mixed population of the Brazilian Amazon
Genetic ancestry (%)
Case no. (%)
Control no. (%)
European ancestry
10–20
8 (6)
14 (5.3)
20–30
24 (17.5)
32 (12.2)
30–40
30 (21.8)
40 (15.2)
40–50
38 (27.7)
60 (23)
50–60
21 (15.3)
61 (23.2)
> 60
16 (11.6)
55 (21)
P
0.03