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Table 1 Demographic variables for patients with gastric cancer and the control group

From: Effect of genetic ancestry to the risk of susceptibility to gastric cancer in a mixed population of the Brazilian Amazon

Variable

Case

Control

P

Age, yearsa

52.81 ± 18.89

46.80 ± 24.48

< 0.001

Sex (women/men)

34/103

156/106

< 0.001

Genetic ancestryb

 European ancestry

0.415 ± 0.143

0.466 ± 0.158

0.001

 African ancestry

0.259 ± 0.140

0.232 ± 0.117

0.089

 Amerindian ancestry

0.326 ± 0.142

0.302 ± 0.137

0.079

  1. aValues are as expressed as mean (± SD = standard deviation). Significance determined by Student’s t-test
  2. bValues are as expressed as mean ± SD. Significance determined by Mann–Whitney test