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

Table 4

Multivariate analysis of postoperative hyperalgesia.

Factor		S.E.	Wald		OR	95% CI
Long sleep disturbance before surgery	0.472	0.392	1.450	0.618	1.603	0.428~6.005
Operation time	0.588	0.411	2.048	0.326	1.801	0.576~5.629
The dosage of remifentanil	0.942	0.325	8.408	0.003	2.566	1.369~4.810
Response entropy at the end of the surgery	1.292	0.372	12.065	<0.001	3.641	2.003~6.617
CERO2 at the end of the surgery	1.350	0.398	11.500	<0.001	3.856	1.858~8.003
Constant term	-25.461