Cardioprotective effects of remimazolam in elderly hypertensive patients undergoing gastrointestinal tumor surgery: A randomized controlled trial

Table 5 Comparison of postoperative complication rates between the two groups, n (%)

Item	P group (n = 40)	R group (n = 40)	χ2/t value	P value
Postoperative agitation score, median (IQR)	1.00 (1.00-2.00)	2.00 (2.00-3.00)	-5.12	< 0.001
Postoperative agitation	24 (60.00)	4 (10.00)	21.978	< 0.001
Delayed recovery	0 (0.00)	0 (0.00)
Postoperative delirium	1 (2.50)	0 (0.00)	0	1
Hypoxemia	0 (0.00)	0 (0.00)
Nausea and vomiting	5 (12.50)	8 (20.00)	0.827	0.363
MINS	18 (45.00)	6 (15.00)	8.571	0.003

IQR: Interquartile range; MINS: Myocardial injury after non-cardiac surgery; P group: Control group (propofol-based intravenous general anesthesia); R group: Experimental group (remimazolam-based intravenous general anesthesia).