Adjusted associations between 24 hour concntrations of air pollutants and baseline lung functions
| Pollutant | FVC (ml) | FEV1 (ml) | MMEF (ml/s) | AEFV (l2/s) |
|---|---|---|---|---|
| *p<0.05; †p<0.01. | ||||
| The recordings (n=141) were between 8 February and 29 April 1994. The regression coefficients (SEs) are expressed for an interquartile increase in the concentration of the pollutant. | ||||
| PM10: | ||||
| Lag0 | −5.04 (4.00) | −3.96 (4.90) | −8.67 (13.7) | −0.026 (0.033) |
| Lag1 | −4.94 (2.93) | −2.48 (3.61) | −9.33 (10.0) | −0.029 (0.024) |
| Lag2 | −6.50 (2.80)* | −4.68 (3.47) | −10.5 (9.68) | −0.043 (0.023) |
| Lag3 | −8.21 (3.42)* | −4.74 (4.25) | −12.0 (11.8) | −0.046 (0.028) |
| 4 Day mean | −7.96 (3.61)* | −5.06 (4.48) | −13.1 (12.5) | −0.047 (0.030) |
| Black smoke: | ||||
| Lag0 | −12.4 (7.88) | −9.20 (9.67) | −24.4 (26.9) | −0.099 (0.064) |
| Lag1 | −8.80 (4.59) | −10.1 (5.60) | −26.0 (15.6) | −0.082 (0.037)* |
| Lag2 | −12.6 (4.36)† | −11.9 (5.40)* | −20.4 (15.2) | −0.093 (0.036)* |
| Lag3 | −14.1 (4.94)† | −11.5 (6.14) | −33.8 (17.0)* | −0.070 (0.041) |
| 4 Day mean | −21.1 (6.64)† | −19.6 (8.25)* | −46.7 (23.1)* | −0.151 (0.054)† |
| NO2: | ||||
| Lag0 | −4.00 (5.77) | 0.219 (7.05) | −11.9 (19.6) | −0.051 (0.047) |
| Lag1 | −6.35 (3.90) | −6.68 (4.77) | −19.0 (13.2) | −0.071 (0.031)* |
| Lag2 | −10.8 (3.69)† | −11.4 (4.54)* | −19.1 (12.9) | −0.077 (0.030)* |
| Lag3 | −12.6 (4.40)† | −8.19 (5.44) | −22.2 (15.0) | −0.048 (0.036) |
| 4 Day mean | −17.7 (6.57)† | −10.6 (8.10) | −23.7 (22.5) | −0.086 (0.053) |
| CO: | ||||
| Lag0 | 0.064 (10.9) | 19.2 (13.2) | 22.2 (36.9) | 0.093 (0.088) |
| Lag1 | −4.79 (4.51) | −9.04 (5.45) | −23.0 (15.2) | −0.068 (0.036) |
| Lag2 | −9.78 (4.24)* | −9.15 (5.21) | −4.63 (14.7) | −0.060 (0.035) |
| Lag3 | −13.9 (4.70)† | −11.7 (5.77)* | −30.9 (16.0) | −0.050 (0.039) |
| 4 Day mean | −29.4 (10.1)† | −17.5 (12.5) | −24.9 (34.8) | −0.076 (0.083) |