Relationship between deterioration in St Georges Respiratory Questionnaire (SGRQ) score, exacerbation group and treatment
| SGRQ score units·yr−1 | p-value | |
| Exacerbation group | ||
| None | 2.0 | 0.0003 |
| Infrequent | 2.4 | |
| Frequent | 2.9 | |
| Treatment | ||
| FP | 2.3 | 0.1 |
| Placebo | 2.5 | |
| Exacerbation group * treatment | 0.2 |
Data are presented as mean or p-value
FP: fluticasone proprionate