Study parameter | Active product | Control product | Active versus control | ||||
---|---|---|---|---|---|---|---|
n | Mean (week 4–baseline) (SD) | p value* (change from baseline) | n | Mean (week 4–baseline) (SD) | p value* (change from baseline) | p value** | |
IBS-SSS | 41 | −53.35 (81.98) | <0.002 | 44 | −31.11 (78.57) | 0.010 | 0.233 |
Birmingham IBS symptom scale | |||||||
Constipation | 59 | 9.44 (20.40) | <0.001 | 49 | 15.10 (21.59) | <0.001 | 0.131 |
Diarrhoea | 59 | 3.88 (12.26) | 0.007 | 2.22 (10.17) | 0.106 | 0.616 | |
Pain | 60 | 7.89 (14.70) | <0.001 | 11.22 (18.34) | <0.001 | 0.367 | |
Total score | 60 | 6.10 (10.83) | <0.001 | 8.28 (11.10) | <0.001 | 0.251 | |
IBS specific symptoms | |||||||
Pain | 60 | −0.33 (1.19) | 0.087 | 49 | −0.61 (1.36) | 0.001 | 0.109 |
Bloating | −0.66 (1.35) | <0.001 | 48 | −0.68 (1.12) | <0.001 | 0.432 | |
Flatulence | −0.51 (1.24) | <0.001 | 49 | −0.36 (1.07) | 0.0017 | 0.955 | |
Composite score | −1.48 (3.03) | 0.002 | 49 | −1.69 (2.99) | <0.001 | 0.264 | |
Stool frequency | 417 | 0.07 (0.89) | 0.202 | 341 | 0.04 (0.85) | 0.607 | 0.648 |
Stool consistency | 341 | 0.13 (1.20) | 0.240 | 269 | 0.31 (1.30) | 0.007 | 0.184 |
Bowel movement difficulty | 341 | −0.24 (0.97) | 0.004 | 271 | −0.28 (0.89) | 0.011 | 0.450 |
IBS Quality of life | |||||||
Dysphoria | 60 | 9.78 (16.89) | <0.001 | 50 | 7.53 (15.54) | 0.002 | 0.875 |
Activity interference | 60 | 5.68 (10.97) | 0.003 | 50 | 5.07 (13.77) | 0.008 | 0.769 |
Body image | 60 | 6.63 (16.28) | <0.001 | 50 | 8.13 (17.37) | 0.004 | 0.134 |
Health worry | 60 | 7.92 (15.20) | 0.001 | 50 | 5.75 (16.17) | 0.009 | 0.958 |
Food avoidance | 60 | 9.58 (16.01) | 0.002 | 50 | 4.42 (18.76) | 0.078 | 0.121 |
Social reaction | 60 | 7.33 (14.23) | 0.003 | 50 | 4.17 (14.10) | 0.029 | 0.769 |
Sexual | 59 | 4.24 (15.68) | 0.171 | 48 | 4.17 (20.36) | 0.125 | 0.853 |
Relationship | 60 | 7.15 (15.54) | <0.001 | 50 | 1.92 (12.43) | 0.217 | 0.139 |
Total score | 60 | 7.60 (10.88) | <0.001 | 50 | 5.69 (12.60) | 0.004 | 0.979 |