| Large urban (reference) | Small urban OR (95%CI) | Rural OR (95%CI) | P-value for trend |
---|---|---|---|---|
Ever wheeze | 1.00 | 2.49 (0.87–7.10)‡ | 2.93 (1.25–6.86)†| 0.007 |
Current wheeze | 1.00 | 0.99 (0.49–1.99) | 1.25 (0.74–2.10) | 0.44 |
Respiratory allergy | 1.00 | 0.98 (0.48–2.00) | 1.29 (0.76–2.19) | 0.38 |
Hay fever | 1.00 | 0.36 (0.08–1.64) | 1.72 (0.87–3.41) | 0.20 |
Eczema | 1.00 | 0.77 (0.37–1.60) | 1.24 (0.74–2.08) | 0.52 |
Current cough | 1.00 | 1.28 (0.64–2.58) | 1.18 (0.71–1.98) | 0.46 |
Wheeze limiting speech | 1.00 | 1.09 (0.32–3.56) | 1.79 (0.79–4.04) | 0.17 |
Wheeze with exercise | 1.00 | 1.43 (0.71–2.88) | 1.60 (0.97–2.64)‡ | 0.06 |
Breathing medications in the past 12 months | 1.00 | 1.66 (0.80–3.47) | 1.31 (0.77–2.23) | 0.23 |
>3 episodes of wheeze in the past 12 months | 1.00 | 0.85 (0.29–2.44) | 2.40 (1.29–4.47)†| 0.009 |
Nocturnal symptoms | 1.00 | 1.98 (0.96–4.09)‡ | 1.44 (0.86–2.42) | 0.09 |
School missed because of breathing problems | 1.00 | 1.59 (0.76–3.35) | 1.56 (0.93–2.63)‡ | 0.07 |
Physician visits for asthma in the past year (ref: none) | ||||
 1 visit | 1.00 | 0.35 (0.11–1.09)‡ | 0.49 (0.24–1.03)‡ | 0.03 |
 >1 visit | 1.00 | 0.66 (0.29–1.51) | 0.92 (0.50–1.71) | 0.68 |