Table 6. Comparison of Means : Age Group and Anatomical Part

Age/Anatomical Part	M	s.e	95% confidence interval		F	p
			Lower bound	Upper bound
0-9	0.25	0.25	0.0	0.86	0.810	0.600
10-19	4.75	2.75	0.0	11.49
20-29	19.25	11.09	0.0	46.42
30-39	29.25	20.71	0.0	79.99
40-49	46.0	32.55	0.0	125.75
50-59	63.75	48.91	0.0	183.58
60-69	36.5	30.93	0.0	112.28
70-79	16.0	10.13	0.0	40.82
80-89	4.25	3.28	0.0	12.29
over 90	0.25	0.25	0.0	0.86
External ear	2	0.55	0.65	3.35	8.799	0.000***
Middle ear	10.11	2.62	3.69	16.53
Inner ear	77.56	23.72	19.45	135.67
기타	8.11	2.31	2.45	13.77

p<.05