Table 3.

The frequencies of pain qualities in the two groups at different time intervals

Time interval	Pain quality	RaCe group	Reciproc group	P -value
48 h	Non or mild	0	1
	Moderate	35	38	0.35
	Severe	10	36
12 h	Non or mild	2	10
	Moderate	38	32	0.04
	Severe	5	3
24 h	Non or mild	8	15
	Moderate	35	29	0.22
	Severe	2	1
48 h	Non or mild	18	30
	Moderate	25	15	0.02
	Severe	2	1
72 h	Non or mild	30	38
	Moderate	15	7	0.05
	Severe	0	0
1 week	Non or mild	45	45
	Moderate	0	0	-
	Severe	0	0