Subjects n | 213+ | 130 | 99 | | |
Respiratory antecedents including asthma | 33 (15.5) | 14 (10.8) | 7 (7.1) | 2.42 (1.002–5.83) | 1.55 (0.60–4.00) |
History of allergy¶ | | | | | |
Personal | 92 (44.0) | 61 (47.3) | 42 (43.3) | 1.21 (0.73–2.02) | 1.19 (0.70–2.03) |
Familial | 64 (34.0) | 32 (30.8) | 40 (46.5) | 0.73 (0.42–1.26) | 0.53 (0.29–0.97) |
Asthma at any time in their life | | | | | |
Self-reported | 16 (7.5) | 6 (4.6) | 5 (5.1) | 1.60 (0.56–4.56) | 0.92 (0.27–3.11) |
Doctor-diagnosed | 15 (7.0) | 5 (3.9) | 5 (5.1) | 1.54 (0.53–4.45) | 0.76 (0.21–2.71) |
Asthma attack in the previous year | 4 (1.9) | 2 (1.5) | 0 (0.0) | | |
Attack of shortness of breath at rest in the previous year | 4 (1.9) | 4 (3.1) | 1 (1.0) | 1.59 (0.17–15.25) | 3.20 (0.35–29.32) |
Woken by shortness of breath, in the previous year | 7 (3.3) | 2 (1.5) | 1 (1.0) | 3.81 (0.43–33.36) | 1.35 (0.12–15.27) |
Woken by cough in the previous year | 25 (11.8) | 12 (9.2) | 15 (15.5) | 0.83 (0.40–1.73) | 0.54 (0.24–1.21) |
Wheezing | | | | | |
Wheezing at any time in their life | 35 (16.5) | 18 (13.9) | 12 (12.1) | 1.63 (0.78–3.42) | 1.10 (0.50–2.43) |
Wheezing in the previous year | 18 (8.5) | 10 (7.7) | 6 (6.1) | 1.25 (0.45–3.43) | 1.16 (0.40–3.36) |
Wheezing apart from a cold in the previous year | 12 (5.6) | 5 (3.9) | 4 (4.0) | 0.97 (0.28–3.35) | 0.76 (0.20–3.04) |
Wheezing with breathlessness in the previous year | 7 (3.3) | 5 (3.9) | 5 (5.1) | 0.54 (0.15–1.86) | 0.70 (0.19–2.53) |
Usual morning cough | 23 (10.8) | 12 (9.2) | 5 (5.1) | 2.46 (0.83–7.32) | 1.65 (0.53–5.16) |
Usual morning phlegm | 29 (13.6) | 18 (13.8) | 4 (4.0) | 4.27 (1.41–12.95) | 3.59 (1.16–11.10) |
Chronic bronchitis | 8 (3.8) | 3 (2.3) | 1 (1.0) | 4.66 (0.53–40.78) | 2.00 (0.20–20.06) |
Dyspnoea | 43 (22.8) | 17 (14.2) | 12 (12.8) | 1.26 (0.61–2.58) | 1.01 (0.46–2.25) |