| Anatomical site | Mean (SD) | p-Value |
| Forehead | 90.2 (7.0) | <0.001 |
| Nose | 80.7 (10.8) | |
| Left ear | 67.8 (9.8) | |
| Right ear | 83.4 (7.6) | |
| Occiput | 74.6 (11.9) | |
| Upper back | 70.6 (14.2) | |
| Compare forehead with other sites | ||
| Forehead | 90.2 (7.0) | <0.001 |
| Other sites | 76.4 (12.9) | |
| Compare left ear with other sites | ||
| Left ear | 67.8 (9.8) | <0.001 |
| Other sites | 80.9 (12.7) | |
| Compare occiput with other sites | ||
| Occiput | 74.6 (11.9) | <0.001 |
| Other sites | 80.3 (12.4) | |