Table 3: Comparison of the VAS at rest among the study groups
T2=2 hrs postoperative T6=6 hrs postoperative T10= 10 hrs postoperative T12= 12 hrs postoperative T18=18 hrs postoperative T24= 24 hrs postoperative

VAS at rest Groups Mean Rank Mann-Whitney Test
Group I Group II Group I Group II Z P-value
T 2 Range 1-2 7-8 8.000 23.000 -4.845 < 0.001*
Median(IRQ) 1(1) 7(1)
T 6 Range 1-2 7-8 8.000 23.000 -4.845 < 0.001*
Median(IRQ) 1(1) 8(1)
T 10 Range 3-4 7-10 8.000 23.000 -4.792 < 0.001*
Median(IRQ) 3(1) 8(1)
T 12 Range 3-4 7-9 8.000 23.000 -4.795 < 0.001*
Median(IRQ) 3(1) 8(1)
T 18 Range 4-5 9-10 8.000 23.000 -4.916 < 0.001*
Median(IRQ) 4(1) 9(0)
T 24 Range 5-6 5-6 15.000 16.000 -0.372 0.710
Median(IRQ) 5(1) 5(1)
Friedman Test X2 71.018 60.493
P-value < 0.001* < 0.001*