Age: mean 10.0 years. 270 children with current asthma. Cough No effect. 0-15 years: 0.508% 5-14 years: 1.004 8% (0-16%) per 10 1.0356 Recommended () (0.226-0.790%) per (1.002-1.006) per per 10 CRF: Use CRF from μg/m3 148 children (mean 1 µg/m3 10 µg/m3 () µg/m3 Australian 6-cities age about 9.6 15+ years: No effect () () () study (). years) with a history () () () ?Age of wheezing in () () Asthmatic children. previous 12 months. () All children Age: 6-13 years. 5-15 years: 0.999 May use CRFs from Sydney. CRFs for those with (0.987-1.011) per Ward et al () in a asthma. 20+ years: 1.043 10 µg/m3 sensitivity analysis. Day cough: 1.0229 NOT included in (1.005-1.084) per 34 studies. CRFs from a (1.0006-1.0456) per impact assessment 10 µg/m3 Symptomatic 1 in in the UK because () children. μg/m3 model with of doubts about the () 8-hour CO transferability of the () 16-70 years: 1.043 24-hour average data and lack of UK CRF from (1.005-1.084) per Lag 1 studies. 10 µg/m3 Night cough: 1.0277 Symptomatic adults 3 studies. (1.0003-1.0559) per only: cough, Symptomatic adults. 1 in nocturnal cough, () μg/m3 model with cough+phlegm 24-hour SO2 24-hour average Lag 2 () Six cities – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney.
Age: mean 10.0 years. 270 children with current asthma. Cough No effect. () 148 children (mean age about 9.6 years) with a history of wheezing in previous 12 months. Sydney. Day cough: 1.0229 (1.0006-1.0456) per 1 μg/m3 in model with 8-hour CO 24-hour average Lag 1 Night cough: 1.0277 (1.0003-1.0559) per 1 μg/m3 in model with 24-hour SO2 24-hour average Lag 2 () Six cities – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney. 0-15 years: 0.508% (0.226-0.790%) per 1 µg/m3 15+ years: No effect () () () CRFs for those with asthma. NOT included in impact assessment in the UK because of doubts about the transferability of the data and lack of UK studies. 5-14 years: 1.004 (1.002-1.006) per 10 µg/m3 () () () All children 20+ years: 1.043 (1.005-1.084) per 10 µg/m3 () () () CRF from Symptomatic adults only: cough, nocturnal cough, cough+phlegm 8% (0-16%) per 10 μg/m3 () () () Asthmatic children. Age: 6-13 years. 1.0356 per 10 µg/m3 () ?Age 5-15 years: 0.999 (0.987-1.011) per 10 µg/m3 34 studies. Symptomatic children. 16-70 years: 1.043 (1.005-1.084) per 10 µg/m3 3 studies. Symptomatic adults. () Recommended CRF: Use CRF from Australian 6-cities study (). May use CRFs from Ward et al () in a sensitivity analysis. CRFs from a