Table 2.

Meta-analysis of the secondary outcome.

Outcome of interest	No. of trials	No. of patients	PMD [95% CI]	P value	I2 (%)
Systolic blood pressure at baseline	2	196	0.04 [−0.24, 0.32]	.78	0
Systolic blood pressure at 30 min	2	196	−0.39 [−2.43, 1.64]	.71	0
Systolic blood pressure at 60 min	2	196	−0.13 [−2.00, 1.75]	.89	0
Pulse rate at baseline	2	196	0.20 [−0.24, 0.64]	.38	0
Pulse rate at 30 min	2	196	−1.61 [−4.94, 1.71]	.34	0
Pulse rate at 60 min	2	196	−1.95 [−5.92, 2.03]	.34	0
Respiratory rate at baseline	2	196	0.21 [−0.14, 0.55]	.25	0
Respiratory rate at 30 min	2	196	−0.38 [−1.16, 0.41]	.35	0
Respiratory rate at 60 min	2	196	−0.18 [−0.60, 0.25]	.42	0
O2 saturation at baseline	2	196	0.01 [−0.26, 0.27]	.96	0
O2 saturation at 30 min	2	196	−0.00 [−0.27, 0.26]	.98	0
O2 saturation at 60 min	2	196	−0.04 [−0.31, 0.22]	.74	0