The mean ( SD ) rate of blood glucose decrease until a level of @ mg/dL or less is reached ( @ -LSB- @ -RSB- vs @ -LSB- @ -RSB- mg/dL/h ) and the mean ( SD ) time taken to achieve this target ( @ -LSB- @ -RSB- vs @ -LSB- @ -RSB- hours ) were similar in the low - and standard-dose groups , respectively .