From: ABO antigen and secretor statuses are not associated with gut microbiota composition in 1,500 twins
 | Total | Secretors | Non-secretors | Unknown | |||
---|---|---|---|---|---|---|---|
Female | Male | Female | Male | Female | Male | ||
A | 606 | 405 | 35 | 137 | 14 | 12 | 3 |
AB | 40 | 20 | 6 | 9 | 3 | 2 | 0 |
B | 140 | 96 | 7 | 30 | 3 | 2 | 2 |
O | 717 | 449 | 41 | 175 | 22 | 27 | 3 |
Total | 1503 | 970 | 89 | 351 | 42 | 43 | 8 |