Developmental Changes in Morphology of the Middle and Posterior External Cranial Base in Modern Homo sapiens

Table 18

Mean Principal Components scores for the major PCs for each age group in each population for the temporal bone.

Population	Age Cat.	PC1	PC2	PC3	PC4	PC5	PC6
Alaskans	AC1	0.06370	0.03778	−0.00467	0.003486	−0.01318	0.002793
Alaskans	AC2	0.05955	0.01832	−0.01152	0.012063	−0.00951	0.006615
Alaskans	AC3	0.01364	0.01492	−0.01702	−0.00626	0.01089	−0.00095
Alaskans	Adults	−0.04098	0.00911	−0.03013	−0.01553	0.003458	−0.00611
Austrians	AC1	0.06432	0.04918	0.014509	0.0147	0.004334	0.041771
Austrians	AC2	0.01920	−0.01637	−0.01942	−0.00831	−0.02196	0.000631
Austrians	AC3	−0.00658	−0.00682	−0.00317	−0.0133	−0.00137	−0.00585
Austrians	Adults	−0.04079	−0.01804	0.036348	−0.00234	−0.01313	−0.01497
Egyptians	AC1	0.09614	−0.01266	−0.00793	−0.00211	0.011929	0.021407
Egyptians	AC2	0.07456	−0.07440	0.023618	0.005589	0.039431	0.00116
Egyptians	AC3	0.03027	−0.01573	−0.01638	−0.02419	−0.01115	0.008317
Egyptians	Adults	−0.00847	−0.01948	−0.0062	−0.01665	0.009855	0.022317
Mexicans	AC1	0.07394	0.03163	−0.00879	0.015592	0.024777	0.01061
Mexicans	AC2	0.04101	0.00014	−0.0111	0.009107	0.003618	−0.02052
Mexicans	AC3	−0.00346	0.00340	−0.01835	0.013748	0.007935	−0.00232
Mexicans	Adults	−0.02252	−0.03734	0.005864	−0.02859	0.023767	0.001946
Peruvians	AC1	0.04345	−0.01427	0.00188	0.00293	0.031773	−0.00416
Peruvians	AC2	0.01024	0.00996	0.006532	0.025246	−0.00551	−0.01473
Peruvians	AC3	−0.01153	0.01216	0.011737	0.022836	−0.00735	−0.0178
Peruvians	Adults	−0.04831	−0.00314	0.015741	0.009016	−0.00291	0.010455
Polynesians	AC1	0.09089	0.03686	0.01485	−0.01808	−0.08961	−0.02056
Polynesians	AC2	0.03138	0.04798	−0.01105	−0.00197	0.01271	0.000566
Polynesians	AC3	−0.01459	−0.01922	0.003433	−0.01135	−0.00779	0.009155
Polynesians	Adults	−0.07627	−0.00224	0.001625	−0.01349	−0.00344	0.022897
Utah	AC1	0.10426	−0.00679	0.01661	0.030121	−0.0139	−0.01324
Utah	AC2	0.04445	−0.00898	0.018823	0.00818	−0.00028	0.003031
Utah	AC3	−0.05003	0.02901	0.014978	−0.01203	0.021723	−0.00859
Utah	Adults	−0.04109	0.00599	0.030287	0.003773	0.000573	−0.01027