Abstract
The authors carried out a pilot study in Clermont-Ferrand (France) over the period from 2000 to 2001 to analyze the short-term relationship between daily variations in rhinitis and allergic conjunctivitis and daily variations in pollen counts. Data from the ERASME database made it possible to identify all the individuals for whom at least one drug was prescribed to treat rhinitis or allergic conjunctivitis. Ten allergenic pollens were studied, and a Poisson regression model with penalized spline functions was used. A positive and significant association was found for pollens of Betula, Cupressaceae, Quercus, Fraxinus, and Poaceae. The relative risks varied between 1.3 (95% confidence interval [CI] = 1.0-1.5) and 1.2 (95% CI = 1.1-1.5) for an interquartile range increase of daily pollen counts of Cupressaceae (13 grains/m3) and of Betula (45 grains/m3), respectively. Further analyses, in particular, those using longer time series, are necessary to confirm these results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
