Table 1 Participants characteristics, outcomes and levels of exposure (a) among all participants, (b) among those whose addresses were and were not geo-coded successfully and (c) among those whose addresses were geocoded at house versus at street level only
| Â | A. All | B. By geocoding success | C. By level of accuracy of geocoding | |||||
|---|---|---|---|---|---|---|---|---|
| Â | (N = 1,917) | Successful (N = 1,735) | Unsuccessful (N = 182) | P-value1 | House (N = 1,336) | Street (N = 399) | P-value1 | |
Characteristics | Â | Â | Â | Â | Â | Â | Â | |
Male | 48.9% | 49.1% | 47.8% | 0.75 | 49.5% | 47.6% | 0.52 | |
Born in Cyprus | 91.9% | 92.4% | 87.3% | 0.02 | 92.6% | 91.7% | 0.54 | |
At least one parent not Cypriot | 16.2% | 12.5% | 17.7% | 0.05 | 12.1% | 13.8% | 0.37 | |
Birth weight (mean in kg) | 3.24 | 3.24 | 3.24 | 0.98 | 3.24 | 3.25 | 0.62 | |
At least one parent smoker | 46.4% | 46.7% | 45.1% | 0.67 | 47.0% | 45.7% | 0.66 | |
Smoking at least a pack/day | 33.5% | 33.5% | 34.1% | 0.69 | 34.1% | 31.7% | 0.63 | |
Smoking during pregnancy | 2.5% | 2.5% | 2.8% | 0.80 | 2.4% | 2.5% | 0.90 | |
Cat at home | 3.4% | 3.6% | 2.2% | 0.33 | 3.8% | 3.1% | 0.48 | |
Symptoms | Â | Â | Â | Â | Â | Â | Â | |
Currently wheezing | 8.8% | 9.3% | 7.3% | 0.37 | 9.6% | 8.3% | 0.43 | |
Ever having wheezed | 21.9% | 22.9% | 20.1% | 0.40 | 23.2% | 21.7% | 0.53 | |
Ever had asthma diagnosis | 12.9% | 13.4% | 13.0% | 0.87 | 13.5% | 13.2% | 0.87 | |
Personal history of eczema | 8.2% | 8.9% | 5.1% | 0.09 | 8.7% | 9.4% | 0.70 | |
Personal history of hay fever | 3.9% | 4.5% | 1.7% | 0.10 | 4.6% | 3.7% | 0.50 | |
Family history of atopy | 29.3% | 31.6% | 26.9% | 0.20 | 32.1% | 30.2% | 0.51 | |
Exposure (mean) | Â | Â | Â | Â | Â | Â | Â | |
Distance to nearest main road (metres) | Â | 176.4 | Â | Â | 177.1 | 174.4 | 0.84 | |
PM at nearest (kg per km per day) | Â | 0.22 | Â | Â | 0.26 | 0.21 | 0.15 | |
NOx at nearest (kg per km per day) | Â | 4.60 | Â | Â | 4.52 | 5.10 | 0.23 | |
Cumulative PM (kg per km per day) | within 50 m | Â | 0.40 | Â | Â | 0.39 | 0.42 | 0.16 |
| Â | within 100 m | Â | 0.54 | Â | Â | 0.54 | 0.54 | 0.83 |
| Â | within 150 m | Â | 0.78 | Â | Â | 0.80 | 0.71 | 0.12 |
Cumulative NOx (kg per km per day) | within 50 m | Â | 6.60 | Â | Â | 6.52 | 6.88 | 0.23 |
| Â | within 100 m | Â | 9.46 | Â | Â | 9.51 | 9.29 | 0.73 |
| Â | within 150 m | Â | 14.00 | Â | Â | 14.42 | 12.67 | 0.12 |