Difference in mean lung function (95% CI)2-150 associated with different respiratory illnesses at 2 years of age and older in 239 men and women
| Illness | Age (n) | FEV1 (litres) | FVC (litres) | FEV1/FVC |
|---|---|---|---|---|
| Pneumonia | ⩾2 (18) | −0.02 (−0.24, 0.19) | −0.05 (−0.31, 0.21) | 0.4 (−3.4, 4.1) |
| Bronchitis | 2–5 (78) | 0.05 (−0.08, 0.17) | 0.06 (−0.10, 0.21) | 0.3 (−1.9, 2.5) |
| >5 (29) | 0.16 (−0.02, 0.35) | 0.03 (−0.18, 0.25) | 3.1 (−0.1, 6.2) | |
| Cough | 2–5 (47) | −0.09 (−0.23, 0.05) | −0.09 (−0.26, 0.07) | −0.4 (−2.9, 2.0) |
| >5 (27) | −0.24 (−0.42, −0.07) | −0.18 (−0.39, 0.03) | −3.1 (−6.2, −0.04) | |
| Measles | 2–5 (73) | −0.03 (−0.15, 0.10) | −0.14 (−0.29, 0.01) | 1.6 (−0.5, 3.8) |
| >5 (43) | −0.03 (−0.18, 0.12) | −0.16 (−0.34, 0.03) | 2.5 (−0.2, 5.1) | |
| Whooping cough | 2–5 (82) | 0.11 (−0.01, 0.23) | 0.11 (−0.03, 0.26) | 0.8 (−1.3, 2.9) |
| >5 (21) | −0.14 (−0.34, 0.06) | −0.07 (−0.31, 0.17) | −1.8 (−5.2, 1.7) | |
| Croup | ⩾2 (6) | −0.23 (−0.60, 0.13) | −0.27 (−0.70, 0.17) | −1.2 (−7.6, 5.1) |
| Influenza | 2–5 (41) | −0.07 (−0.22, 0.08) | −0.15 (−0.32, 0.02) | 0.5 (−2.0, 3.0) |
| >5 (21) | 0.09 (−0.11, 0.29) | 0.01 (−0.23, 0.25) | 2.4 (−1.0, 5.9) | |
| Asthma/wheeze | ⩾2 (10) | −0.34 (−0.62, −0.06) | −0.26 (−0.59, 0.07) | −4.6 (−9.4, 0.2) |
↵2-150 Controlling for age, sex, height, smoking history, type of spirometer, and other illnesses in the table