Table 3.
Relationship between pollutants (PM10 and O3) and Daily steps count, hours spent outdoors, health status (CAT score), PEFR, dyspnoea, over the full week including Saturday and Sunday; with allowance for season, linear trend, day-length, temperature, sunshine, rain and wind
| Effect of 1 μg/m3 PM10 | Effect of 1 μg/m3 O3 | |||||
|---|---|---|---|---|---|---|
| Regression coefficient | 95 % CI | p-value | Regression coefficient | 95 % CI | p-value | |
| Step count | -5.4 | -12.2 to 1.3 | 0.112 | -8.0 | -13.5 to -2.4 | 0.005 |
| Hours outdoors | 2.3 × 10-3 | -6.5 × 10-3 to 1.8 × 10-3 | 0.275 | -9.9 × 10-3 | -14.2 × 10-3 to -5.6 × 10-3 | <0.001 |
| CAT score | 9.8 × 10-3 | -19.6 × 10-3 to 39.1 × 10-3 | 0.515 | 16.0 × 10-3 | -14.0 × 10-3 to 45.9 × 10-3 | 0.296 |
| PEFR | -0.077 | -0.17 to 0.018 | 0.110 | -0.089 | -0.18 to 0.001 | 0.054 |
| Dyspnoea | -0.41 × 10-3 | -8.0 × 10-3 to 7.1 × 10-3 | 0.915 | 6.6 × 10-3 | 1.3 × 10-3 to 12.0 × 10-3 | 0.015 |