Table 1.
Euclidean distance measurements between landmark pairs
| Landmark pair | Male mean (SD) | Female mean (SD) | Mean % difference | Cohen's D |
|---|---|---|---|---|
| Nasal base width (ac-ac) | 35.8 (2.6) | 33.1 (2.3) | 8.3 | 1.12 |
| Nasal height (n-sn) | 56.6 (3.8) | 54.8 (3.8) | 3.4 | 0.49 |
| Nasal dorsum length (n-prn) | 49.4 (3.8) | 47.5 (3.6) | 5.1 | 0.66 |
| Nasal tip projection (sn-prn) | 21.0 (2.0) | 20.2 (1.9) | 4.2 | 0.43 |
| Lip height (li-ls) | 14.3 (3.3) | 14.3 (2.8) | 0.4 | 0.02 |
| Philtrum length (sn-ls) | 16.5 (2.7) | 14.3 (2.4) | 15.4 | 0.87 |
| Chin height (gn-li) | 43.7 (3.9) | 39.3 (3.7) | 11.3 | 1.18 |
The effect of sex is highly significant (p < 0.0001) for all measurements except for lip height (p = 0.72). All measurements, apart from Cohen's D and % difference, are reported in units of mm.