Table 2.

Comparison of Visual Analog Scale scores difference from baseline to different time between the groups

Dependent variable	Group (I)	Group (J)	Mean difference (I−J)	SE	P
Preoperative versus immediate	Group I	Group II	−0.200	0.178	0.501
		Group III	−0.467	0.178	0.027
	Group II	Group III	−0.267	0.178	0.296
Preoperative versus 1 week	Group I	Group II	−0.300	0.196	0.280
		Group III	−0.767	0.196	<0.001*
	Group II	Group III	−0.467	0.196	0.050*
Preoperative versus 2 weeks	Group I	Group II	−0.200	0.219	0.634
		Group III	−0.733	0.219	0.003*
	Group II	Group III	−0.533	0.219	0.045*
Preoperative versus 4 weeks	Group I	Group II	−0.233	0.223	0.549
		Group III	−1.200	0.223	<0.001*
	Group II	Group III	−0.967	0.223	<0.001*

*Statistically significant using Tukey’s post hoc test. SE: Standard error