Table 2.

Nasal cavity volume, nasal resistance, and nasalance according to age group

Age (yr)	Number	Nasal cavity volume (cm3)	Nasal resistance (Pa/cm3/sec)		Nasalance score (%)
			Inspiratory	Expiratory	Oral passage	Oronasal passage	Nasal passage
20–29	36	22.26±5.16	0.41±0.26	0.39±0.25	13.67±5.58	39.58±6.29	65.67±5.04
30–39	36	24.10±4.14	0.24±0.11	0.23±0.10	14.36±5.66	36.39±7.07	59.94±6.38
40–49	36	25.67±4.73	0.26±0.09	0.26±0.09	13.42±3.52	33.25±6.33	57.56±6.31
50–59	36	28.98±7.69	0.24±0.09	0.23±0.09	13.53±4.47	36.61±7.30	61.50±6.98
≥60	36	32.61±7.28	0.22±0.08	0.21±0.07	14.00±3.07	34.89±6.93	59.03±6.12

Values are presented as mean±standard deviation.