Table 3. Distribution in Casual Group of Olfactory Disorder and Average of Score in KVSS I Test

Cause(number)	Average of score in KVSS I test		p-value
Cause(number)	Initial	Final	p-value
Post-viral(n=8)^a	3.8±2.3	5.5±1.8	0.017^*
Sinonasal diseases (n=2)^b	6.0±1.4	5.0±1.4	0.157
Head trauma (n=1)	3.0	2.0	-
Unknown(n=5)^b	2.6±3.7	3.2±2.9	0.593
Total(n=16)^b	3.3±2.8	4.2±2.5	0.089

Mean±standard deviation
paired t test
Wilcoxon signed rank test
p<0.05