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Table 1 Demographics of the study population

From: Association between the ABO blood group and the human intestinal microbiota composition

 

Blood group

 

A

B

AB

O

Female

17 (85%)

11 (92%)

12 (92%)

17 (89%)

Male

3 (15%)

1 (8%)

1 (8%)

2 (11%)

Total*

20

12

13

19

Rh+

19 (95%)

10 (83%)

12 (92%)

19 (100%)

Rh-

1 (5%)

2 (17%)

1 (8%)

0

Average age**

44 (33–58)

43 (31–57)

48 (39–58)

46 (31–61)

  1. 79 persons were recruited to the study. Exclusion criteria in the recruitment were: diagnosed gastrointestinal disorders, antibiotic treatment in past two months, pregnancy, problems in blood coagulation, vegetarian diet and age below 18 or over 61. In addition, non-secretor persons (15) were excluded, thus the final study pool was 64 persons. Average age is presented together with the age range of each ABO blood group. Rh +/− states the presence/absence of the Rhesus-factor in blood.
  2. *No statistical difference (P > 0.95) was detected in participant numbers between blood groups.
  3. ** No statistical difference (P > 0.45) was detected in participant age distribution between blood groups.