Comparison of surgical airway devices, their external diameter and the percentage of population in which CTM height>external diameter of device
| Tube Type | External Diameter | % of population in which CTM height>external diameter of device |
|---|---|---|
| 6 mm | 8 | 36.2 |
| 5 mm | 6.7 | 60.5 |
| 4 mm | 5.6 | 77.6 |
| 3 mm | 4.2 | 93.2 |
| Shilley | 10.8 | 7.7 |
| Melker | 8.2 | 34.6 |
| TracheoQuick | 5 | 86.5 |