Table 1.

Metacarpal measurements (mean ± SD) by broad group, with results of statistical testing

MeasureAbydos (n = 6)Donkey (n = 32)Nubian (n = 13)Somali (n = 8)P value (ANOVA)
GL (E1) greatest length195.7 ± 6.5183.2 ± 14.4190.5 ± 6.7207.1 ± 8.4<.0001
SD (E3) smallest shaft breadth27.4 ± 0.9*24.6 ± 2.525.8 ± 1.827.0 ± 1.40.0055
E4 midshaft depth20.8 ± 0.4*19.4 ± 1.921.3 ± 1.822.7 ± 2.0*0.0002
Bp (E5) proximal breadth43.3 ± 1.238.3 ± 3.644.0 ± 2.345.8 ± 1.8<.0001
E6 depth of proximal articular surface27.7 ± 1.525.2 ± 2.129.2 ± 1.629.2 ± 1.6<.0001
E7 diameter of facet Os C III35.0 ± 2.231.9 ± 2.936.2 ± 1.836.9 ± 4.3<.0001
E8 diameter of anterior facet Os C IV12.2 ± 1.010.8 ± 1.412.1 ± 1.312.2 ± 1.00.0104
Bd (E10) distal supra-articular breadth38.2 ± 1.535.7 ± 2.7*39.6 ± 1.941.2 ± 2.3<.0001
E11 distal articular breadth37.8 ± 1.035.2 ± 2.938.5 ± 2.1*40.2 ± 1.4<.0001
Dd (E12) depth distal end28.2 ± 1.226.3 ± 2.528.8 ± 1.7*28.9 ± 1.20.0011
E13 smallest depth medial condyle22.8 ± 1.221.8 ± 1.923.8 ± 1.1*24.1 ± 1.10.0004
E14 greatest depth medial condyle25.3 ± 1.823.4 ± 2.325.2 ± 1.3*26.1 ± 1.20.0012
  • *One missing data point.

  • Two missing data points.