Table 4. Description of variables used.
| Martin Number79 | Name | Skull Element | Definition |
|---|---|---|---|
| M1 | Maximum cranial length | Vault | Maximum glabello-occipital length |
| M5 | Skull base length | Vault | Basion to nasion |
| M8 | Maximum cranial breadth | Vault | Widest measurement perpendicular to the medio-sagittal plane |
| M9 | Least frontal breadth | Vault | Distance between left and right frontotemporale |
| M11 | Biauricular breadth | Vault | Distance between left and right auriculare |
| M11b | Biradicular breadth | Vault | Distance between left and right radiculare |
| M12 | Biasterionic breadth | Vault | Distance between left and right asterion |
| M17 | Basi-bregmatic height | Vault | Distance between basion and bregma |
| M40 | Basion-Prosthion length | Face | Basion to prosthion |
| M45 | Bizygomatic breadth | Face | Distance between left and right zygion |
| M48 | Upper facial height | Face | Nasion to prosthion |
| M51 | Orbital breadth | Face | Maxillofrontale to ektokonchion |
| M52 | Orbital height | Face | Greatest height of orbit, perpendicular to M51 |
| M54 | Nasal breadth | Face | Maximal nasal breadth |
| M55 | Nasal height | Face | Nasion to Nasospinale |