[Retracted] Changes of Entropy Index and Cerebral Oxygen Metabolism in the Maintenance of Remifentanil Anesthesia and Their Predictive Value for Postoperative Hyperalgesia

Table 3

Assignment.

Variable		Assignment
Dependent variable	Postoperative hyperalgesia	,
Independent variable	The long-term sleep disorder before operation	,
	Operation time	Actual value
	The dosage of remifentanil	Actual value
	Response entropy at the end of the surgery	Actual value
	CERO2 at the end of the surgery	Actual value