WORK IN BRIEF
Work in brief
| The first 150 words of the full text of this article appear below. |
Most studies of air pollution have taken mortality and admission to hospital as their main health-end points. Fewer have been set in primary care, but Chardon et al1 add to the growing number of publications by investigating doctors house calls in the greater Paris area. Some 53 000 consultations for lower respiratory tract disease and 75 000 for upper respiratory tract disease were studied, as well as about 8000 visits for asthma. A time-series analysis considered the relation of lagged exposures to air pollutants and of daily house calls, adjusted for seasonal factors. An increase of 10 µg/m3 in mean PM10 and PM2.5 in the previous three days led to an increase of 3% in calls for upper respiratory tract symptoms and 6% in those for lower respiratory tract complaints. No associations were found with NO2 or for asthma with any measures of air pollution. The authors suggest that medical
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