Premedication with lorazepam did not improve the EVAN-G mean global index for overall level of patient satisfaction ( @ -LSB- @ % CI , @-@ -RSB- ; n = @ ) compared with no premedication ( @ -LSB- @ % CI , @-@ -RSB- ; n = @ ) or placebo ( @ -LSB- @ % CI , @-@ -RSB- ; n = @ ) ( P = @ ) .