Table 3.

Pairwise comparisons of pre-, post-treatment and follow-up scores.

				Paired samples t-tests
Questionnaire	n	Mdifference	SDdifference	t	df	p	Cohen’s d
VAS
Pre-treatment to post-treatment	23	−31.78	30.99	4.92	22	<.001	1.03
Pre-treatment to 1-week FU	23	−34.96	32.27	5.20	22	<.001	1.08
Pre-treatment to 4-week FU	23	−39.04	33.24	5.63	22	<.001	1.18
Pre-treatment to 6-month FU	9	−40.78	34.89	3.51	8	.004	1.17
BSI
Pre-treatment to post-treatment	24	-.95	.88	5.27	23	<.001	1.08
Pre-treatment to 1-week FU	24	-.98	.81	5.92	23	<.001	1.17
Pre-treatment to 4-week FU	24	-.95	1.12	4.15	23	<.001	0.85
Pre-treatment to 6-month FU	10	−1.14	1.10	3.26	9	.005	1.03
BDI-II
Pre-treatment to post-treatment	24	−14.29	12.97	5.40	23	<.001	1.10
Pre-treatment to 1-week FU	24	−13.46	12.08	5.46	23	<.001	1.11
Pre-treatment to 4-week FU	24	−13.38	14.59	4.49	23	<.001	0.92
Pre-treatment to 6-month FU	10	−17.00	12.87	4.18	9	.001	1.32