Table 1.
Metacarpal measurements (mean ± SD) by broad group, with results of statistical testing
| Measure | Abydos (n = 6) | Donkey (n = 32) | Nubian (n = 13) | Somali (n = 8) | P value (ANOVA) |
|---|---|---|---|---|---|
| GL (E1) greatest length | 195.7 ± 6.5 | 183.2 ± 14.4 | 190.5 ± 6.7 | 207.1 ± 8.4 | <.0001 |
| SD (E3) smallest shaft breadth | 27.4 ± 0.9* | 24.6 ± 2.5 | 25.8 ± 1.8 | 27.0 ± 1.4 | 0.0055 |
| E4 midshaft depth | 20.8 ± 0.4* | 19.4 ± 1.9 | 21.3 ± 1.8 | 22.7 ± 2.0* | 0.0002 |
| Bp (E5) proximal breadth | 43.3 ± 1.2 | 38.3 ± 3.6 | 44.0 ± 2.3 | 45.8 ± 1.8 | <.0001 |
| E6 depth of proximal articular surface | 27.7 ± 1.5 | 25.2 ± 2.1 | 29.2 ± 1.6 | 29.2 ± 1.6 | <.0001 |
| E7 diameter of facet Os C III | 35.0 ± 2.2 | 31.9 ± 2.9 | 36.2 ± 1.8 | 36.9 ± 4.3 | <.0001 |
| E8 diameter of anterior facet Os C IV | 12.2 ± 1.0 | 10.8 ± 1.4 | 12.1 ± 1.3† | 12.2 ± 1.0† | 0.0104 |
| Bd (E10) distal supra-articular breadth | 38.2 ± 1.5 | 35.7 ± 2.7* | 39.6 ± 1.9 | 41.2 ± 2.3 | <.0001 |
| E11 distal articular breadth | 37.8 ± 1.0 | 35.2 ± 2.9 | 38.5 ± 2.1* | 40.2 ± 1.4 | <.0001 |
| Dd (E12) depth distal end | 28.2 ± 1.2 | 26.3 ± 2.5 | 28.8 ± 1.7* | 28.9 ± 1.2 | 0.0011 |
| E13 smallest depth medial condyle | 22.8 ± 1.2 | 21.8 ± 1.9 | 23.8 ± 1.1* | 24.1 ± 1.1 | 0.0004 |
| E14 greatest depth medial condyle | 25.3 ± 1.8 | 23.4 ± 2.3 | 25.2 ± 1.3* | 26.1 ± 1.2 | 0.0012 |
*One missing data point.
†Two missing data points.