The results of Generalised Estimating Equations test followed by pairwise contrasts tests indicated that the participants who received CS showed significantly greater reduction of symptoms ( mean difference of CS vs. placebo = @-@ @ , P < @ ) and improvements in quality of life ( mean difference of CS vs. placebo = @-@ @ , P < @ ) , and body constitution in ` Qi-deficiency ' , ` Yang-deficiency ' , and ` Inherited Special ' ( mean difference of CS vs. placebo = @-@ @ , @-@ @ , and @-@ @ , P = @ - < @ , @-@ @ , and @ - < @ , accordingly , at three post-tests ) .