[Retracted] The Effect of Propofol plus Remifentanil for PostoperativePain and Heart Rate Management in Patients Undergoing Abdominal Hysterectomy

Table 2

Comparison of the frequencies of PCIA within 48 hours after operation and NRS scores at different times after operation (, scores).

Group	n	NRS
		1 h	2 h	6 h	8 h	12 h
Study group	48	1.14 ± 0.09	2.05 ± 0.12	2.17 ± 0.18	1.93 ± 0.18	1.04 ± 0.06
Control group	48	2.47 ± 0.13	3.28 ± 0.09	3.38 ± 0.16	2.88 ± 0.22	2.53 ± 0.11
t		58.278	56.811	34.809	23.155	82.387
		<0.001	<0.001	<0.001	<0.001	<0.001