Gyejigachulbutang (Gui-Zhi-Jia-Shu-Fu-Tang, Keishikajutsubuto, TJ-18) in Degenerative Knee Osteoarthritis Patients: Lessons and Responders from a Multicenter Randomized Placebo-Controlled Double-Blind Clinical Trial

Table 6

Analysis of blind maintenance (N = 77).

Blind	GCB group	Placebo group	value^a
GCB group	15 (37.5%)	14 (37.8%)	0.0104
Placebo group	1 (2.5%)	9 (24.4%)
Do not know	24 (60.0%)	14 (37.8%)
New blind index^†	0.35 (0.19, 0.51)	−0.14 (−0.39, 0.12)

^†Data expressed as 95% confidence interval. ^a value was calculated from the Fisher’s exact test. Significant difference. GCB, Gyejigachulbutang, rescue medicine consumption (post hoc analysis).