| Age (years) | Sex |  | |||||
---|---|---|---|---|---|---|---|---|
18–39 | 40–59 | 60–77 | P value1 | Men | Women | P value2 | Total (95 % CI) | |
Current asthma | 12.3 | 13.4 | 9.4 | 0.216 | 10.1 | 13.2 | 0.122 | 11.8 (9.9–13.6) |
Asthma ever | 17.8 | 16.2 | 11.8 | 0.024 | 14.0 | 16.2 | 0.328 | 15.2 (13.1–17.3) |
Current rhinitis | 48.8 | 43.8 | 36.6 | 0.001 | 44.5 | 41.4 | 0.314 | 42.8 (40.0–45.7) |
Rhinitis ever | 53.7 | 48.5 | 39.5 | <0.001 | 50.0 | 44.4 | 0.060 | 47.0 (44.2–50.0) |
Current eczema | 12.9 | 17.0 | 9.7 | 0.167 | 11.3 | 15.4 | 0.040 | 13.5 (11.5–15.4) |
Eczema ever | 49.1 | 46.8 | 38.2 | 0.003 | 36.5 | 51.6 | <0.001 | 44.6 (41.8–47.5) |
Asthma medication 12 m | 11.0 | 12.5 | 10.7 | 0.864 | 9.8 | 13.0 | 0.098 | 11.5 (9.7–13.4) |
Rhinitis medication 12 m | 33.7 | 30.8 | 19.9 | <0.001 | 27.1 | 28.9 | 0.515 | 28.1 (25.5–30.6) |
Allergic sensitization | 40.9 | 31.0 | 18.6 | <0.001 | 36.0 | 24.2 | <0.001 | 29.7 (27.0–32.4) |
Smoking | ||||||||
Never smoker | 70.6 | 52.1 | 49.5 | <0.0013 | 58.5 | 54.5 | 0.0153 | 56.4 (53.5–59.2) |
Ex-smoker | 11.0 | 29.7 | 37.6 | 28.3 | 26.0 | 27.1 (24.5–29.6) | ||
Current smoker | 18.4 | 18.2 | 12.9 | 13.1 | 19.5 | 16.5 (14.4–18.7) | ||
Family history | ||||||||
Asthma | 23.8 | 20.2 | 15.0 | 0.004 | 15.8 | 22.6 | 0.004 | 19.5 (17.2–21.8) |
Rhinitis | 42.9 | 35.2 | 14.0 | <0.001 | 25.3 | 35.3 | <0.001 | 30.6 (27.9–33.4) |
Asthma and rhinitis | 16.7 | 12.6 | 4.7 | <0.001 | 7.9 | 14.1 | 0.002 | 11.2 (9.4–13.1) |
Asthma or rhinitis | 49.8 | 42.1 | 24.0 | <0.001 | 32.9 | 43.1 | <0.001 | 38.4 (35.6–41.2) |
Body mass index | ||||||||
Underweight (<20) | 10.4 | 3.0 | 1.0 | <0.0013 | 1.5 | 7.0 | <0.0013 | 4.4 (3.3–5.6) |
Normal (20–25) | 54.9 | 34.7 | 28.0 | 33.2 | 42.4 | 38.1 (35.4–40.9) | ||
Overweight (25–30) | 26.1 | 45.0 | 52.4 | 50.7 | 34.8 | 42.2 (39.3–45.0) | ||
Obese (>30) | 8.6 | 17.2 | 18.6 | 14.6 | 15.9 | 15.3 (13.2–17.3) | ||
Occupational GDF | 24.3 | 24.6 | 25.3 | 0.750 | 36.2 | 14.9 | <0.001 | 24.7 (22.3–27.2) |
Metropolitan domicile | 70.6 | 50.9 | 52.4 | <0.001 | 54.8 | 58.6 | 0.214 | 57.0 (54.0–60.0) |
Raised on a farm | 7.7 | 11.8 | 19.9 | <0.001 | 13.9 | 12.8 | 0.604 | 13.3 (11.4–15.3) |