[Retracted] Study on the Effect of Different Doses of Hydromorphone on the Time Response and Postoperative Analgesia of Ropivacaine in Ultrasound-Guided Suprailiac Fascia Inguinal Block

Table 1

General data and operation time of three groups of patients (%,  ± s).

Group	n	Male/female	Age (years)	Body weight (kg)	ASA I/II	Operation time (min)
L group	30	16/14	70.21 ± 7.12	56.13 ± 8.35	12/18	60.23 ± 9.47
H1 group	30	19/11	68.43 ± 8.24	54.45 ± 7.26	14/16	62.12 ± 8.35
H2 group	30	17/13	69.05 ± 8.05	54.92 ± 7.74	13/17	60.52 ± 8.37
F value		0.638	0.401	0.371	0.271	0.406
value		0.727	0.671	0.691	0.873	0.667