Exacerbation frequency, COPD Assessment Test (CATest) and St Georges Respiratory Questionnaire symptom scores (SGRQ) in patients with COPD receiving 4 weeks placebo (N=7) or inulin (N=9) supplement
| Placebo | Inulin | ||||
| Mean | SD | Mean | SD | P value | |
| Number of exacerbations | 4 (57%) | N/A | 1 (11%) | N/A | *0.048 |
| Pretreatment CATest score | 14.33 | 1.16 | 17.13 | 7.18 | >0.99 |
| Post-treatment CATest score | 16.00 | 1.00 | 12.88 | 5.33 | >0.99 |
| ∆ CATest score | 1.67 | 2.08 | −4.25 | 2.49 | *0.01 |
| Pretreatment SGRQ score | 40.49 | 13.08 | 42.52 | 16.94 | >0.99 |
| Post-treatment SGRQ score | 41.91 | 3.24 | 36.17 | 14.51 | >0.99 |
| ∆ SGRQ total score | 1.43 | 9.94 | −6.34 | 6.07 | 0.27 |
*p < 0.05.
COPD, chronic obstructive pulmonary disease.