Table 2.

The rate of changes in mean of pain index variables, in terms of time, time/group, and groups

Variable/test		df	F	Mean of squares	P
VAS/Greenhouse-Geisser	Time	2.478	57.851	33.816	< 0.001
	Time/group	2.478	49.134	28.721	< 0.001
	Between groups	1.000	25.344	126.025	< 0.001

VAS: Visual analogue scale; df: Degree of freedom