Table 3. Yanagihara’s Score according to Time after Onset

Time	Yanagihara’s score	Sig*
1st visit day	9.52±2.05
1wks	3.28±1.09	0.003
2wks	4.97±1.15	0.021
3wks	19.55±2.65	0.000
4wks	30.31±2.42	0.001

Wilcoxon signed-rank test