Auricular dimensions in computed-tomography: Unveiling the relationship between ear dimensions, age, and sex using three-dimensional volume rendering reconstructions

Table 3 Quantitative results for size measurements in cm for females (n = 342) in total and for each age group, mean ± SD/ 95%CI

Side	Measurement (cm)	Total	18-30 year (n = 18)	31-50 year (n = 85)	51-70 year (n = 101)	71-90 year (n = 122)	> 91 year (n = 16)
Right ear	Length 1	6.44 ± 0.5	6.03 ± 0.34	6.15 ± 0.43	6.43 ± 0.43	6.66 ± 0.44	6.93 ± 0.51
		6.05-6.84	5.74-6.33	5.77-6.52	6.09-6.78	6.3-7.01	6.56-7.31
	Length 2	2.7 ± 0.32	2.43 ± 0.2	2.53 ± 0.26	2.67 ± 0.27	2.84 ± 0.32	3.05 ± 0.26
		2.26-3.15	2.15-2.71	2.18-2.89	2.3-3.04	2.48-3.2	2.76-3.35
	Width 1	3.6 ± 0.32	3.44 ± 0.18	3.39 ± 0.26	3.63 ± 0.34	3.72 ± 0.27	3.79 ± 0.29
		3.24-3.96	3.23-3.64	3.09-3.68	3.25-4.01	3.42-4.02	3.5-4.07
	Width 2	3.3 ± 0.3	3.12 ± 0.2	3.14 ± 0.26	3.28 ± 0.25	3.44 ± 0.29	3.47 ± 0.43
		2.96-3.65	2.85-3.4	2.85-3.43	2.94-3.63	3.1-3.77	2.98-3.96
	Perimeter	16.36 ± 1.2	15.39 ± 0.79	15.59 ± 0.96	16.37 ± 1.1	16.88 ± 1.05	17.57 ± 1.21
		15.73-16.99	14.98-15.8	15.08-16.09	15.79-16.94	16.37-17.4	17-18.15
Left ear	Length 1	6.48 ± 0.51	6.08 ± 0.37	6.17 ± 0.41	6.44 ± 0.41	6.71 ± 0.49	7.04 ± 0.39
		6.07-6.88	5.75-6.4	5.85-6.5	6.11-6.76	6.34-7.07	6.74-7.33
	Length 2	2.71 ± 0.33	2.4 ± 0.23	2.55 ± 0.26	2.67 ± 0.29	2.85 ± 0.32	3.06 ± 0.27
		2.25-3.17	2.08-2.72	2.26-2.85	2.27-3.08	2.48-3.21	2.75-3.36
	Width 1	3.68 ± 0.31	3.55 ± 0.24	3.48 ± 0.26	3.7 ± 0.3	3.79 ± 0.29	3.91 ± 0.21
		3.33-4.03	3.28-3.83	3.19-3.77	3.28-4.11	3.46-4.11	3.71-4.11
	Width 2	3.26 ± 0.27	3.17 ± 0.23	3.12 ± 0.22	3.25 ± 0.24	3.34 ± 0.27	3.48 ± 0.26
		2.96-3.56	2.86-3.49	2.87-3.37	2.92-3.59	3.03-3.64	3.18-3.77
	Perimeter	16.46 ± 1.2	15.62 ± 0.92	15.66 ± 0.96	16.44 ± 1.01	16.98 ± 1.12	17.74 ± 0.92
		15.83-17.08	15.14-16.1	15.19-16.13	15.9-17	16.45-17.51	17.3-18.17