with cough or No CRF sputum on most recommended. days for at least three months of the year for at least two years. Incidence of asthma Ever had wheezing: n/a n/a n/a n/a No CRF No effect. recommended. Ever had asthma: No effect. No effect in () Australian 6-cities Six cities study (). – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney. Average hourly. PM2.5 over lifetime. Age: mean age10.0 years. 2,860 children. Recent symptoms No effect for asthma n/a n/a n/a n/a Recommended CRF (in last 12 months) exacerbation, only for rhinitis (). wheeze, cough or shortness of breath. No effect for other () symptoms in Melbourne Australian 6-cities N=1,446 study (). Mean age: 37 years. 12-month average.
with cough or sputum on most days for at least three months of the year for at least two years. No CRF recommended. Incidence of asthma Ever had wheezing: No effect. Ever had asthma: No effect. () Six cities – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney. Average hourly. PM2.5 over lifetime. Age: mean age10.0 years. 2,860 children. n/a n/a n/a n/a No CRF recommended. No effect in Australian 6-cities study (). Recent symptoms (in last 12 months) No effect for asthma exacerbation, wheeze, cough or shortness of breath. () Melbourne N=1,446 Mean age: 37 years. 12-month average. n/a n/a n/a n/a Recommended CRF only for rhinitis (). No effect for other symptoms in Australian 6-cities study ().
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