| March | P value | May | P value | July | P value | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Control | COPD | BA | χ2-test | Control | COPD | BA | χ2-test | Control | COPD | BA | χ2-test | |
Q1 [n, (%)] | 3 (11.1) | 8 (50.0) | 6 (60.0) | <0.005 | 7 (25.9) | 8 (50.0) | 9 (90.0) | <0.005 | 7 (26.9) | 11 (68.8) | 9 (81.8) | <0.005 |
Q2 [n, (%)] | 8 (26.3) | 10 (62.5) | 7 (63.6) | <0.05 | 7 (25.9) | 10 (62.5) | 7 (70.0) | <0.05 | 5 (19.2) | 11 (68.8) | 7 (63.4) | <0.05 |
Q3 [n, (%)] | 3 (11.1) | 10 (62.5) | 4 (36.4) | <0.005 | 3 (11.1) | 8 (50.0) | 7 (70.0) | <0.001 | 3 (11.5) | 7 (43.8) | 5 (50.0) | <0.001 |
Q4 [n, (%)] | 5 (18.5) | 11 (68.8) | 11 (100.0) | <0.0001 | 4 (14.8) | 12 (75.0) | 8 (80.0) | <0.0001 | 3 (12.0) | 13 (81.3) | 7 (63.6) | <0.0001 |
Number of symptoms | 0.70 ± 0.99 | 2.44 ± 1.36 P < 0.0001 Versus control | 2.55 ± 1.13 P < 0.0005 Versus control |  | 0.78 ± 1.12 | 2.38 ± 1.41 P < 0.001 Versus control | 2.82 ± 1.54 P < 0.0005 Versus control |  | 0.67 ± 1.00 | 2.63 ± 0.89 P < 0.0001 Versus control | 2.55 ± 1.21 P < 0.0001 versus Control |  |