Table 5.
St George's Respiratory Questionnaire (SGRQ) scores at baseline, 6- and 12-month assessment points
| Control group | Intervention group | Unit differences | ||
|---|---|---|---|---|
| SGRQ | Mean (95% CI) | Mean (95% CI) | (95% CI) | P-value* |
| Baseline | ||||
| Symptoms | 69.6 (65.1, 74.0) | 68.8 (64.3, 73.3) | −0.7 (−6.9, 5.5) | 0.81 |
| Activity | 75.2 (70.6, 79.8) | 73.9 (68.8, 77.9) | −1.2 (−7.4, 4.6) | 0.65 |
| Impact | 56.9 (52.6, 61.3) | 55.1 (50.8, 59.0) | −1.8 (−7.8, 3.8) | 0.57 |
| Total | 64.2 (60.5, 67.9) | 63.6 (59.8, 66.6) | −0.9 (−6.0, 4.0) | 0.69 |
| Six-month assessment point | ||||
| Symptoms | 71.1 (66.8, 75.4) | 63.5 (58.8, 68.2) | −7.8 (−14.3, 1.0) | 0.01 |
| Activity | 71.6 (66.9, 76.1) | 69.6 (65.6, 73.4) | −1.8 (−7.8, 4.2) | 0.53 |
| Impact | 58.4 (53.9, 62.8) | 50.5 (46.4, 54.6) | −7.5 (−13, 1.5) | 0.01 |
| Total | 64.2 (60.8, 68.2) | 59.2 (55.6, 62.8) | −5.2 (−10, 1.0) | 0.04 |
| Twelve-month assessment point | ||||
| Symptoms | 72.0 (66.6, 77.5) | 65.1 (59.7, 70.5) | −7.5 (−14.1, 0.1) | 0.04 |
| Activity | 76.2 (71.9, 80.4) | 74.5 (71.0, 77.9) | −1.8 (−7.0, 3.0) | 0.51 |
| Impact | 57.1 (52.1, 62.1) | 50.4 (45.6, 55.2) | −7.4 (−14, 0.6) | 0.03 |
| Total | 65.3 (61.0, 69.6) | 61.8 (57.9, 65.6) | −3.8 (−9.5, 2.0) | 0.17 |
*
t-test.