Table 4 Association between self-reported attack of asthma and respiratory symptoms adjusted for age, smoking status and sex
From: Change in the symptom profile treated as asthma – two cross-sectional studies twenty years apart
Independent variables | Dependent variables (RR, 95% CI) | |
|---|---|---|
Attack of asthma 1993/94 | Attack of asthma 2014/15 | |
Breathlessness while wheezing | 3.42 (1.65–7.07)** | 5.02 (1.78–14.17)** |
Wheeze without cold | 4.05 (2.02–8.10)*** | 1.40 (0.57–3.45) |
Waking with chest tightness | 3.36 (1.65–6.83)** | 0.84 (0.39–1.80) |
Woken by attack of breathlessness | 0.92 (0.47–1.80) | 2.22 (1.06–4.64)* |
Woken by attack of cough | 1.08 (0.61–1.90) | 1.75 (0.98–3.14) |
Nasal allergies | 2.80 (1.57–4.98)*** | 6.68 (2.67–16.67)*** |
Age | 0.98 (0.95–1.02) | 0.97 (0.94–1.00) |
Smoking history | 0.77 (0.56–1.07) | 1.01 (0.72–1.40) |