RETRACTED ARTICLE: Preoperative versus postoperative ultrasound-guided rectus sheath block for improving pain, sleep quality and cytokine levels in patients with open midline incisions undergoing transabdominal gynecological surgery: a randomized-controlled trial

Table 1 Patient demographic data and characteristics

Variable	Group PRE	Group POST	95% Confidence interval	P
Variable	(n = 30)	(n = 31)	95% Confidence interval	P
Age (years)	47.1 ± 13.8	45.5 ± 10.6		0.625^b
Body mass index (kg/m²)	24.8 ± 2.9	22.9 ± 2.6		0.625^b
ASA (I/II)	19/11	18/13		0.674^c
Pittsburgh Sleep Quality Indexglobal score	3.0[2.0,3.5]	3.0[2.0,4]		0.518^a
Intraoperation
Duration of anesthesia (min)	131.1 ± 20.4	133.9 ± 28.8	(− 15.6,10.0)	0.663^b
Duration of surgery (min)	79.7 ± 17.1	76.8 ± 21.7	(− 7.1,12.9)	0.570^b
Volume loading (ml)	1413.3 ± 351.1	1441.9 ± 354.8	(− 9.5,352.3)	0.763^b
Bleed amount (ml)	150[120,205]	150[130,230]		0.930^a
Length of skin incision (cm)	9.0[8.0,9.5]	9.0[8.0,10.0]		0.951^a
Sufentanil (μg)	47.3 ± 4.1	47.1 ± 4.8	(−2.1,2.5)	0.837^b

Values represent the mean ± SD, the number of patients, or the median [25th percentile, 75th percentile]
^aMann–Whitney U test
^bStudent’s t test
^cchi-square test

ISSN: 1471-2253