Table 1.
Demographics of the study population
| |
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) |
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.
*No statistical difference (P > 0.95) was detected in participant numbers between blood groups.
** No statistical difference (P > 0.45) was detected in participant age distribution between blood groups.