Fig. 4From: Dexmedetomidine nasal administration improves perioperative sleep quality and neurocognitive deficits in elderly patients undergoing general anesthesiaAnxiety state assessment of the three groups of subjects (A Comparison of preoperative anxiety state assessment among the three groups; B Comparison of anxiety state assessment among the three groups one day after surgery; C Comparison of anxiety state assessment among the three groups three days after surgery; D Comparison of anxiety state assessment among the three groups five days after surgery)Back to article page