Group-R showed significantly higher bispectral-index values during colonoscopy ( @ -LSB- @-@ -RSB- vs @ -LSB- @-@ -RSB- , P = @ ) ; a higher incidence of recall of explanations given during and after colonoscopy ( @ vs @ % and @ vs @ % , both P < @ ) ; and a lower distress score ( visual analog scale @/@ vs @/@mm , P = @ ) , than did group-MM .