Association (odds ratio (OR) and 95% confidence intervals (95% CI)) between frequency of winter consumption of citrus/kiwi fruit (per week) and 12 month occurrence (%) of respiratory symptoms in the follow up study
| <1/week | 1–2/week | 3–4/week | 5–7/week | p for trend | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| % | OR | % | OR (95% CI) | % | OR (95% CI) | % | OR (95% CI) | ||||
| Wheeze | 9.4 | 1.0 | 4.5 | 0.48 | 5.7 | 0.61 | 5.0 | 0.54 | 0.040 | ||
| (0.31 to 0.73) | (0.42 to 0.89) | (0.36 to 0.82) | |||||||||
| Shortness of breath with wheeze | 8.1 | 1.0 | 2.7 | 0.33 | 3.5 | 0.43 | 2.9 | 0.37 | 0.001 | ||
| (0.20 to 0.55) | (0.28 to 0.66) | (0.22 to 0.60) | |||||||||
| Exercise related wheeze | 3.6 | 1.0 | 1.2 | 0.35 | 1.6 | 0.43 | 1.1 | 0.29 | 0.005 | ||
| (0.17 to 0.73) | (0.22 to 0.80) | (0.13 to 0.62) | |||||||||
| Severe wheeze | 2.5 | 1.0 | 0.7 | 0.31 | 0.8 | 0.36 | 0.8 | 0.33 | 0.339 | ||
| (0.12 to 0.78) | (0.16 to 0.81) | (0.13 to 0.82) | |||||||||
| Nocturnal cough | 20.2 | 1.0 | 12.9 | 0.60 | 15.5 | 0.74 | 11.4 | 0.54 | 0.002 | ||
| (0.45 to 0.81) | (0.57 to 0.97) | (0.40 to 0.71) | |||||||||
| Chronic cough | 13.9 | 1.0 | 9.7 | 0.7 | 10.4 | 0.75 | 9.9 | 0.72 | 0.159 | ||
| (0.50 to 0.96) | (0.55 to 1.01) | (0.52 to 1.0) | |||||||||
| Rhinitis | 13.8 | 1.0 | 12.7 | 0.95 | 12.4 | 0.91 | 11.6 | 0.85 | 0.28 | ||
| (0.70 to 1.3) | (0.68 to 1.22) | (0.62 to 1.16) | |||||||||
| Toothache | 9.1 | 1.0 | 12.0 | 1.32 | 11.0 | 1.33 | 9.0 | 1.1 | 0.897 | ||
| (0.92 to 1.90) | (0.94 to 1.87) | (0.76 to 1.60) | |||||||||
Odds ratios adjusted for sex, study area, father's education, household density, maternal and paternal smoking, dampness or mould, parental asthma.