Table 1. Characteristics of dogs in this study by cephalic index group (N = 13).
| High CI (brachycephalic) | Low CI (dolichocephalic) | T-test statistic | p-value | |
| N | 6 | 7 | – | – |
| Male | 50% | 43% | – | – |
| Breeds | Akita cross, Mastiff cross, Maltese, Staffordshire bull terrier, Shih tzu cross | Greyhound, English springer spaniel, Australian cattle dog cross, Jack Russell terrier, Pit bull cross | – | – |
| Sagittal brain size (mm2) | 1475.21±369.4 | 1722.3±358.6 | 1.31 | 0.217 |
| Olfactory lobe volume (mm3) | 255.9±114.3 | 334.2±110.4 | 1.26 | 0.234 |
| Body weight (kg) | 14.9±9.7 | 21.3±7.5 | 1.33 | 0.211 |
| Height (cm) | 40.8±13.9 | 55.3±12.9 | 1.95 | 0.78 |
CI: cephalic index. Mean values ± SD.