Sex | Female | 0 |
 | Male | 1 |
BMI (kg/m2) | <  30 | 0 |
 | ≥ 30 | 1 |
Neck length (cm) | ≥ 6 cm | 0 |
 | <  6 cm | 2 |
Neck extensibility (cm) | Normal | 0 |
 | Reduced | 2 |
Thyroid volume (ml) | ≤ 80 ml | 0 |
 | >  80 ml | 3 |
Hypervascularization | No | 0 |
 | Yes | 3 |
Thyroiditis | No | 0 |
 | Yes | 3 |
Score level | Low | 0–3 |
 | Medium | 4–5 |
 | High | 6–15 |