Table 2. Mean visual analogue scale score (for pain) at different time intervals.

VAS: visual analogue scale; SD: standard deviation; vs: versus; HS: highly significant; S: significant

VAS score	Group A		Group B		Group C		P value	P value	P value
	Mean	SD±	Mean	SD±	Mean	SD±	Group A vs C	Group B vs C	Group A vs B
0 h	1.93	0.18	1.91	0.25	3.64	0.91	<0.001 (HS)	<0.001 (HS)	0.21 (NS)
1 h	1.97	0.18	1.86	0.34	3.0	0.91	<0.001 (HS)	<0.001 (HS)	0.16 (NS)
2 h	1.97	0.18	1.93	0.25	3.96	0.92	<0.001 (HS)	<0.001 (HS)	0.56 (NS)
4 h	2.0	0.00	2.0	0.26	5.1	1.09	<0.001 (HS)	<0.001 (HS)	1.0 (NS)
6 h	2.76	1.10	2.6	0.77	5.2	0.37	0.007 (S)	0.015 (S)	0.50 (NS)
12 h	2.87	0.93	2.96	1.09	5.7	0.55	0.015 (S)	0.001 (S)	0.063 (NS)
24 h	2.76	1.02	2.86	0.94	5.4	1.19	0.018 (S)	0.038 (S)	0.362 (NS)