Table 2.

VAS score in intervention Phase I and Phase II.

	Mean (SD)		P value
	Group A	Group B
Between group comparison
Phase I	1.43 (1.61)	2.33 (1.89)	0.053*
Phase II	2.60 (2.29)	1.99 (2.02)	0.282**
Within group comparison
P value	0.017#	0.690##

 *Independent-samples t-test, t = 1.976. **Independent samples t-test, t = −1.087.

^#Paired-samples t-test, t = −2.745. ^##Paired-samples t-test, t = 0.580.