Dexmedetomidine-induced anesthesia in elderly patients undergoing hip replacement surgery

Table 1 Comparison of vital signs between the two groups (mean ± SD)

Group	n	MAP (mmHg)	SpO2 (%)	HR (beat/min)
Preoperative
Control group	49	90.02 ± 3.39	96.24 ± 3.07	88.12 ± 4.16
Observation group	49	91.12 ± 3.37	97.29 ± 2.45	87.14 ± 4.11
F value	-	2.136	1.871	1.389
P value	-	0.147	0.064	0.242
Intraoperative
Control group	49	75.61 ± 4.49a	99.63 ± 0.49a	81.59 ± 3.21a
Observation group	49	79.61 ± 3.41a	99.80 ± 0.41a	79.12 ± 3.26a
F value	-	23.995	1.863	3.779
P value	-	< 0.001	0.066	< 0.001
6 h after operation
Control group	49	82.78 ± 3.74a,d	98.49 ± 0.68a,d	86.73 ± 4.28a,d
Observation group	49	88.49 ± 4.67a,d	98.92 ± 0.28a,d	83.43 ± 3.45a,d
F value	-	46.040	10.001	4.202
P value	-	< 0.001	0.056	< 0.001

^aP < 0.05 vs preoperative.

^dP < 0.05 vs intraoperative.

MAP: Mean arterial pressure; HR: Heart rate; SpO₂: Blood oxygen saturation.