Floor and ceiling effects: QOL-B scores at baseline
| AIR-BX1 (N=266) | AIR-BX2 (N=274) | |||
|---|---|---|---|---|
| QOL-B V.3.0 scale | Floor effects* (score=0) n (%) | Ceiling effects* (score=100) n (%) | Floor effects* (score=0) n (%) | Ceiling effects* (score=100) n (%) |
| Respiratory Symptoms | 1 (0.4) | 0 (0) | 1 (0.4) | 0 (0) |
| Physical Functioning | 8 (3.0) | 21 (7.9) | 12 (4.4) | 16 (5.8) |
| Vitality | 8 (3.0) | 5 (1.9) | 7 (2.6) | 4 (1.5) |
| Role Functioning | 1 (0.4) | 21 (7.9) | 4 (1.5) | 20 (7.3) |
| Health Perceptions | 3 (1.1) | 1 (0.4) | 4 (1.5) | 0 (0) |
| Emotional Functioning | 0 (0) | 64 (24.1) | 1 (0.4) | 61 (22.3) |
| Social Functioning | 10 (3.8) | 11 (4.1) | 14 (5.1) | 9 (3.3) |
| Treatment Burden† | 2 (0.8) | 33 (13.4) | 3 (1.2) | 28 (11.3) |
*QOL-B responses at baseline (day 0) were used for the analyses included in this table.
†Patients who were not receiving treatment for bronchiectasis were instructed to skip the Treatment Burden scale; analyses presented in this table used responses from 247 patients in AIR-BX1 and 247 patients in AIR-BX2 and percentages were calculated using these numbers as denominators.
QOL-B, Quality of Life-Bronchiectasis.