Table 2. The comparison of heart rate among the two groups.

SD: standard deviation

Serial number	Time	Group A (n = 94)		Group B (n = 94)		Student's 't' test
		Mean	SD	Mean	SD	't'	'p'
1	Baseline	95.00	19.48	89.68	16.28	1.436	0.154
2	0 minute	95.36	19.47	91.77	16.93	0.955	0.342
3	5 minutes	93.70	18.67	92.36	15.43	0.379	0.705
4	15 minutes	89.81	17.60	91.13	14.24	-0.399	0.691
5	30 minutes	86.32	16.09	89.51	14.25	-1.018	0.311
6	45 minutes	84.89	15.57	89.11	13.71	-1.392	0.167
7	1 hour	84.04	15.31	89.15	13.91	-1.692	0.094
8	1 hour and 15 minutes	83.26	15.04	88.70	13.54	-1.845	0.068
9	End of surgery	83.32	14.01	88.83	13.01	-1.975	0.051