| Do you have information on thalassemia? | Frequency |
| Yes | 74 (19.3%) |
| No | 310 (80.7%) |
| Are you… |
|
| Thalassemia carrier | 6 (1.6%) |
| Has thalassemia | 4 (1.0%) |
| Healthy | 374 (97.4%) |
| If you have thalassemia, please choose your age… |
|
| Less than 18 | 2 (0.5%) |
| 18 - 25 | 1 (0.3%) |
| 25 - 30 | 1 (0.3%) |
| Do you know someone who has thalassemia? |
|
| Yes | 32 (8.3%) |
| No | 352 (91.7%) |