The Effect of Intrathecal Bupivacaine Plus Dextrose 5% and Fentanyl Compared with Bupivacaine Alone on the Onset and Duration of Analgesia in Patients Undergoing Lower-Limb Orthopedic Surgery

Table 4

Comparison of mean diastolic blood pressure of two groups at different times.

	Study group time
	Control mean ± SD	Intervention mean ± SD
Primary	84.3 ± 5.1	82.8 ± 7.2	t = 0.781
			5 minutes	75.1 ± 4.5^ab	78.1 ± 10.1	t = 1.204
10 minutes	71.6 ± 6.1^ac	75.5 ± 8.6^a				t = 1.647
			15 minutes	74.6 ± 5.4^a	74.9 ± 6.8^a	t = 0.154
30 minutes	73.6 ± 6.4^a	77.5 ± 6^ab				t = 1.952
			45 minutes	70.8 ± 4.2^ac	78.3 ± 5.4^abd	t = 4.850
60 minutes	70.1 ± 3.8^ac	78.2 ± 5.5^ab				t = 5.406
			Onset injection	70.3 ± 3.8^a	5 ± 3.74^a	t = 2.243
6 hours	75.1 ± 5.6^a	4.3 ± 7.77				t = 1.443
			12 hours	79 ± 7.5^bhfg	80 ± 6.4^b	t = 0.788
24 hours	75.7 ± 5.4^a	77.4 ± 4.2				t = 1.065
			Statistical test of repeated analysis of variance	F = 16.604	F = 6.197