Time-weighted average glucose concentration in delirious (both hyperinsulinemic–normoglycemic clamp and routine glucose management) and nondelirious (both hyperinsulinemic–normoglycemic clamp and routine glucose management) patients. Results presented as boxplots: the first quartile, median, and third quartile comprise the boxes; whiskers extend to the most extreme observations within 1.5 times the interquartile range of the first and third quartiles.