| Placenta Number | Placenta Weight (gm) | Perfusion Time (min) | AIB level (mg/l) | Ethanol level (mg/dL) | Number of Samples | Concentration Ratio Fetal/Maternal (Mean) | Gradient* |
| 13 | 550 | 180 | 5, 10, 40 | 500 | 7, 9, 21 | 0.82, 0.96, 1.17 | M ↔ F |
| 22 | 635 | 180 | 20, 100 | 1000 | 8, 11 | 1.26, 1.37, 1.31 | M ↔ F |
| 23 | 576 | 90 | 100 | 1000 | 9 | 1.31 | M ↔ F |
| 24 | 466 | 60 | 150 | 1000 | 7 | 2.08 | M ↔ F |
| 27 | 538 | 20 | 20 | 1000 | 5 | 1.22 | M ↔ F |
| 28 | 590 | 30 | 20 | 1000 | 7 | 0.84 | M ↔ F |
| 29 | 610 | 40 | 20 | 500 | 8 | 0.95 | M ↔ F |
| 30 | 420 | 30 | 100 | 1000 | 6 | 0.57 | M ↔ F |
| 31 | 668 | 38 | 100 | 1000 | 5 | 1.33 | M ↔ F |
| 34 | 476,516 | 50 | 10 | 1000 | 6 | 1.38 | M ↔ F |
| 35 | 516 | 185 | 10, 40, 100 | 1000 | 8, 8, 4 | 1.31, 1.32, 1.26 | M ↔ F |
| 36 | 447 | 50 | 10 | 1000 | 6 | 1.32 | M ↔ F |
| 39 | 367 | 80 | 10 | 1000 | 9 | 1.13 | M ↔ F |
| Mean ± S.E. | 528 ± 25 | 80 ± 17 | 45 ± 10 | - | 8 ± 1 | 1.20 ± 0.08 | - |
| **P value | 0.790 | 0.260 | 0.810 | - | 1000 | 0.016 | - |