| |
Treatment
|
Waiting list
|
Effect size
|
Mixed models
|
|---|
| |
n
|
m
|
SD
|
n
|
m
|
SD
|
Cohen's d(95% CI)
|
Effect
|
B
|
p
|
|---|
|
GSRS-IBS
| | | | | | | | | | |
|
Pre
|
30
|
44.6
|
11.1
|
31
|
39.8
|
12.0
| |
Group
|
4.9
|
.12
|
|
Post
|
23
|
31.0
|
10.2
|
27
|
40.9
|
14.5
|
0.77 (0.19 - 1.34)
|
Time
|
0.6
|
.63
|
|
FU
|
19
|
29.9
|
12.6
| | | | |
G×T
|
-11.7
|
.001
|
|
IBS-QOL
| | | | | | | | | | |
|
Pre
|
30
|
67.4
|
20.9
|
31
|
76.1
|
18.8
| |
Group
|
-8.8
|
.09
|
|
Post
|
23
|
82.6
|
13.4
|
27
|
67.4
|
23.1
|
0.79 (0.20-1.35)
|
Time
|
-7.2
|
.001
|
|
FU
|
20
|
87.6
|
11.8
| | | | |
G×T
|
16.6
|
.001
|
|
VSI
| | | | | | | | | | |
|
Pre
|
30
|
32.5
|
18.0
|
31
|
27.5
|
16.3
| |
Group
|
5.0
|
.22
|
|
Post
|
23
|
14.1
|
15.1
|
27
|
26.2
|
17.9
|
0.73 (0.14 - 1.29)
|
Time
|
-11.7
|
.01
|
|
FU
|
20
|
15.5
|
15.9
| | | | |
G×T
|
-14.6
|
.001
|
| | | | | | | | |
COV
|
0.3
|
.03
|
Sheehan
Disability Scales
| | | | | | | | | | |
|
Pre
|
30
|
11.9
|
8.1
|
31
|
8.7
|
6.3
| |
Group
|
3.2
|
.08
|
|
Post
|
23
|
6.4
|
6.7
|
27
|
7.8
|
7.6
|
0.19 (-0.37 - 0.75)
|
Time
|
-4.4
|
.01
|
|
FU
|
20
|
5.2
|
6.6
| | | | |
G×T
|
-4.2
|
.002
|
| | | | | | | | |
COV
|
0.1
|
.04
|
- Unstandardized (B) coefficients and their p-values are given for fixed in effects in linear mixed models using all data from pre-treatment and post-treatment and all individuals (n = 61). The coefficient associated with the main effect of group denotes average score difference between the groups at the pre-treatment assessment. The coefficient associated with the effect of time denotes the average change score from pre to post-treatment across both groups. The coefficient associated with the effect of G × T (group × time) denotes the difference between groups in change score from pre- to post-treatment. COV is the effect of the pre-treatment value of GSRS-IBS, as a retained covariate in the model, on the post-treatment value. Group0 = Treatment Group, Group1 = Waiting List, Time0 = Pre-treatment, and Time1 = Post-treatment. Effect sizes are calculated as standardized mean difference (Cohen's d) at post-treatment. GSRS-IBS: Gastrointestinal symptom rating scale-IBS version. IBS-QOL: The Irritable Bowel Syndrome Quality of Life Instrument (IBS-QOL). VSI: The Visceral Sensitivity Index.
