Table 2. Distribution according to the gestational age.
| Gestational age in weeks | High homocysteine level | Percentage | Normal homocysteine level | Percentage |
| 10 weeks | 29 | 48.3 % | 28 | 46.7% |
| 11 weeks | 11 | 18.3 % | 10 | 16.6 % |
| 12 weeks | 15 | 25.0 % | 7 | 11.7 % |
| 13 weeks | 5 | 8.3 % | 6 | 10.0 % |
| 14 weeks | 2 | 3.3 % | 9 | 15.0 % |
| Total | 60 | 100.0% | 60 | 100.0 % |