Figure 2. Intraoperative changes in plasma glucose concentration. Data are expressed as means +/- SD with ranges shown in parenthesis (minimum, maximum). *P < 0.05 compared with placebo-0% dextrose for the placebo groups or clonidine-0% dextrose for the clonidine groups;(dagger)P <0.05 for the clonidine compared with the placebo groups with the same infusion;(section)P < 0.05 for the 2% dextrose group compared with the 5% dextrose group.