Table 2. Results of the ANOVA.

	Sum of squares	df	Mean square	F	Sig.
Age
Between groups	1,165,778	2	582,889	5,953	0.009
Within groups	2,154,222	22	97,919
Total	3,320,000	24
VAS before removal
Between groups	4,034	2	2,017	7,644	0.003
Within groups	5,806	22	0.264
Total	9,840	24
VAS after removal
Between groups	67,954	2	33,977	7,490	0.003
Within groups	99,806	22	4,537
Total	167,760	24
Decrease in VAS
Between groups	39,818	2	19,909	4,505	0.023
Within groups	97,222	22	4,419
Total	137,040	24