Table 4 Responsiveness measured by effect size
From: Evaluation of the Birmingham IBS symptom questionnaire
Dimension | Health status at 7/10 days | Baseline | Change at 7/10 days | Effect size |
|---|---|---|---|---|
Mean (SD) | Mean (SD) | |||
Pain | ||||
Worse (n = 30) | 38.2 (21.7) | 3.8 (21.6) | 0.18 | |
Same (n = 245) | 33.3 (19.2) | -2.4 (12.5) | 0.13 | |
Improved (n = 47) | 31.0 (22.1) | -10.2 (14.4) | 0.46 | |
Constipation | ||||
Worse (n = 30) | 25.8 (22.0) | -1.3 (16.5) | 0.06 | |
Same (n = 242) | 35.0 (27.7) | -1.6 (16.4) | 0.06 | |
Improved (n = 48) | 32.2 (25.2) | -6.8 (15.9) | 0.27 | |
Diarrhoea | ||||
Worse (n = 29) | 31.2 (24.7) | 3.9 (10.7) | 0.16 | |
Same (n = 236) | 21.1 (16.9) | -1.4 (10.0) | 0.08 | |
Improved (n = 46) | 19.4 (17.0) | -5.4 (11.8) | 0.32 | |
Overall | ||||
Worse (n = 29) | 31.6 (16.8) | 2.3 (10.6) | 0.14 | |
Same (n = 230) | 28.2 (13.3) | -1.6 (8.2) | 0.12 | |
Improved (n = 46) | 26.1 (14.0) | -7.4 (9.5) | 0.53 |