Net improvement in symptom prevalence in congested and uncongested streets
| Symptom in past year | Congested streets | Uncongested streets | Difference* in net % better (95% CI) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Total no. | Better | Worse | Net % better | Total no. | Better | Worse | Net % better | ||
| *Difference is expressed as value in congested streets minus value in uncongested streets. | |||||||||
| Wheeze | |||||||||
| Any | 165 | 17 | 16 | 0.6 | 283 | 35 | 15 | 7.1 | −6.5 (−14.9 to 2.0) |
| No. attacks | 163 | 21 | 21 | 0 | 282 | 45 | 21 | 8.5 | −8.5 (−18.2 to 1.2) |
| Disturbs sleep | 164 | 12 | 11 | 0.6 | 283 | 26 | 18 | 2.8 | −2.2 (−9.9 to 5.5) |
| Limits speech | 164 | 4 | 2 | 1.2 | 282 | 12 | 7 | 1.8 | −0.6 (−5.2 to 4.5) |
| Affects activities | 165 | 13 | 12 | 0.6 | 281 | 26 | 14 | 4.3 | −3.7 (−11.3 to 4.0) |
| Without a cold | 162 | 12 | 15 | −1.9 | 281 | 17 | 18 | −0.4 | 1.5 (−6.2 to 9.3) |
| Treated | 163 | 8 | 5 | 1.8 | 264 | 18 | 11 | 2.7 | −0.8 (−7.1 to 5.6) |
| Winter cough | 156 | 14 | 11 | 1.9 | 261 | 15 | 14 | 0.4 | 1.5 (−6.2 to 9.3) |
| Winter phlegm | 144 | 10 | 10 | 0 | 253 | 12 | 12 | 0 | 0 (−7.6 to 7.6) |
| Consulted doctor | 140 | 18 | 10 | 5.7 | 247 | 29 | 18 | 4.5 | 1.3 (−8.1 to 10.7) |
| Rhinitis | |||||||||
| Any | 161 | 27 | 9 | 11.2 | 280 | 40 | 22 | 6.4 | 5.4 (−3.1 to 15.0) |
| Involves eyes | 163 | 17 | 6 | 6.7 | 279 | 19 | 18 | 0.4 | 6.4 (−0.9 to 13.8) |
| Affects activities | 161 | 27 | 4 | 14.3 | 276 | 33 | 22 | 4.0 | 10.3 (3.1 to 17.3) |
| Treated | 161 | 12 | 10 | 1.2 | 278 | 26 | 22 | 1.4 | −0.2 (−5.2 to 7.5) |