| Amoxicilin | Healthy Gr. | CHD Gr. with Ant. | CHD Gr. without Ant. | Total | ||||
| No | % | No | % | No | % | No | % | |
| I | 1 | 3.3 | - | - | 2 | 6.7 | 3 | 3.3 |
| R | 1 | 3.3 | 7 | 23.3 | 1 | 3.3 | 9 | 10.0 |
| S | 28 | 93.3 | 23 | 76.7 | 27 | 90.0 | 78 | 86.7 |
| Total | 30 | 100.0 | 30 | 100.0 | 30 | 100.0 | 90 | 100.0 |