Research Article
A Herbal Medicine, Gongjindan, in Subjects with Chronic Dizziness (GOODNESS Study): Study Protocol for a Prospective, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Clinical Trial for Effectiveness, Safety, and Cost-Effectiveness
Figure 1
Study flowchart. BBS, Berg Balance Scale; BI, Blinding Index; CNS, central nervous system; DHI, Dizziness Handicap Inventory; EQ-5D, EuroQoL five dimensions’ questionnaire; FSS, Fatigue Severity Scale; GJD, Gongjindan; GPE, Global perceived effect; K-BDI, Korean version of Beck’s Depression Inventory; MVS, mean vertigo scale; QBYY-Q, qi blood yin yang-deficiency questionnaire; STAI, State-Trait Anxiety Inventory; VAS, visual analogue scale; wks, weeks; yr, year.