Table 2.
Asthma symptom control according to patient characteristics. Univariate logistic regression analysis was used to analyse the associations with the asthma control levels ‘Well controlled’ and ‘Uncontrolled’
| Asthma symptom control | Univariate logistic regression analyses | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Well controlled N (%) |
Partly controlled N (%) |
Uncontrolled N (%) |
Dependent variable is “Well controlled” asthma |
Dependent variable is “Uncontrolled” asthma |
||||||
| OR | 95% CI | P | OR | 95% CI | P | |||||
| Smoking | Ex-smoker (N = 105) | 42 (40.0) | 47 (44.8) | 16 (15.2) | ||||||
| Current smoker (N = 83) | 23 (27.7) | 34 (41.0) | 26 (31.3) | 0.58 | 0.31–1.07 | 0.08 | 2.54 | 1.25–5.14 | 0.01 | |
| Pack-years | < 30 (N = 133) | 47 (35.3) | 61 (45.9) | 25 (18.8) | ||||||
| ≥30 (N = 57) | 19 (33.3) | 20 (35.1) | 18 (31.6) | 0.91 | 0.47–1.76 | 0.79 | 1.99 | 0.98–4.05 | 0.06 | |
| Sex | Female (N = 112) | 36 (32.1) | 46 (41.1) | 30 (26.8) | ||||||
| Male (N = 78) | 30 (38.5) | 35 (44.9) | 13 (16.7) | 1.32 | 0.72–2.41 | 0.37 | 0.55 | 0.26–1.13 | 0.10 | |
| Exacerbationa | No (N = 139) | 59 (42.4) | 54 (38.8) | 26 (18.7) | ||||||
| Yes (N = 51) | 7 (13.7) | 27 (52.9) | 17 (33.3) | 0.22 | 0.09–0.51 | 0.001 | 2.17 | 1.06–4.47 | 0.04 | |
| ICS | No (N = 11) | 3 (27.3) | 4 (36.4) | 4 (36.4) | ||||||
| Yes (N = 179) | 63 (35.2) | 77 (43.0) | 39 (21.8) | 1.45 | 0.37–5.65 | 0.59 | 0.49 | 0.14–1.75 | 0.49 | |
| ICS + LABA | No (N = 68) | 24 (35.3) | 25 (36.8) | 19 (27.9) | ||||||
| Yes (N = 122) | 42 (34.4) | 56 (45.9) | 24 (19.7) | 0.96 | 0.52–1.79 | 0.90 | 0.63 | 0.32–1.26 | 0.19 | |
| FEV1/FVC < 0.70b | No(N = 138) | 49 (35.5) | 59 (42.8) | 30 (21.7) | ||||||
| Yes (N = 52) | 17 (32.7) | 22 (42.3) | 13 (25.0) | 0.88 | 0.45–1.73 | 0.72 | 1.20 | 0.57–2.53 | 0.63 | |
| FEV1, % of predicted | ≥ 80% | 40 (39.6) | 44 (43.6) | 17 (16.8) | ||||||
| < 80% | 26 (29.2) | 37 (41.6) | 26 (29.2) | 0.63 | 0.34–1.15 | 0.13 | 2.04 | 1.02–4.08 | 0.04 | |
| Significant reversibilityc | No (N = 173) | 61 (35.3) | 76 (43.9) | 36 (20.8) | ||||||
| Yes (N = 17) | 5 (29.4) | 5 (29.4) | 7 (41.2) | 0.77 | 0.26–2.27 | 0.63 | 2.66 | 0.95–7.49 | 0.06 | |
ahospitalization and/or oral corticosteroids for asthma during the previous year, bpost-bronchodilator, cchange in FEV1 at least 12% and 200 ml