| Study number | Number of patients | ||
| Aspirin + Dipyridamole (A) even/total | Aspirin (B) even/total | Control (C) even/total | |
| 1 | 3/31 | 7/30 | 13/35 |
| 2 | 6/12 | 6/9 | 4/9 |
| 3 | 3/30 | 9/32 | 13/34 |
| 4 | 0/100 | 4/100 | 5/100 |
| 5 | 6/18 | 8/16 | 8/25 |
| 6 | 1/11 | 2/10 | 4/11 |
| 7 | 0/11 | 2/14 | 1/14 |
| 8 | 13/75 |
| 35/75 |
| 9 | 12/85 |
| 24/75 |
| 10 | 3/38 |
| 14/66 |
| 11 | 1/30 |
| 11/36 |
| 12 | 20/32 |
| 21/32 |
| 13 | 10/20 |
| 8/20 |
| 14 | 8/21 |
| 8/22 |
| 15 | 3/13 |
| 6/15 |
| 16 | 1/19 |
| 7/19 |
| 17 | 6/40 |
| 14/40 |
| 18 |
| 42/153 | 33/150 |
| 19 |
| 5/702 | 11/679 |
| 20 |
| 9/56 | 11/49 |
| 21 |
| 9/357 | 32/357 |
| 22 |
| 16/50 | 12/50 |
| 23 |
| 7/138 | 17/140 |
| 24 |
| 27/66 | 29/63 |
| 25 |
| 16/44 | 20/44 |
| 26 |
| 7/26 | 4/25 |
| 27 |
| 11/58 | 23/59 |